ATcT [1, 2] enthalpies of formation based on version 1.122r of the Thermochemical Network [3]

Below is a list of 0 K and 298.15 K enthalpies of formation for all 2032 species included in version 1.122r.
This version of ATcT results was generated from an expansion of version 1.122q [4, 5] to include a non-rigid rotor anharmonic oscillator (NRRAO) partition function for hydroxymethyl [6], as well as data on 42 additional species, some of which are related to soot formation mechanisms.

The elements in their standard states are listed first; the listing order of the other species follows the actual order from the ATcT solution file, which roughly reflects the number of thermochemically-relevant determinations that include the species in question (highest first). The intent is to convey a very approximate indication of the robustness of the listed values, which is generally higher toward the top of the list and lower toward the bottom.

For species other than elements in their standard states, the Species Name acts as a link to the page itemizing the most important contributors to the provenance of its ATcT enthalpy of formation, other highly correlated chemical species, and high-leverage reactions in the Thermochemical Network.
(Please note that, as opposed to traditional sequential thermochemistry where the provenance of a given enthalpy of formation is typically a single measurement, the provenances of ATcT enthalpies of formation, which are obtained by analysing and solving a large Thermochemical Network, are normally quite distributed.)

If you find Active Thermochemical Tables useful in your research, please cite this website as given in Ref. [3], and, if possible, the ATcT approach as given in Refs. [1] and [2].



          
          
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The stoichiometry represents fractions as decimals,
e.g. 0.5 O2, 1 H2, 1 H2O would represent
1/2 O2 + H2 → H2O
Reactant Reactant Reactant Reactant Reactant Reactant Reactant Reactant
Product Product Product Product Product Product Product Product


Species Name Preferred Formula Image    ΔfH°(0 K)    ΔfH°(298.15 K) Uncertainty Units Relative
Molecular
Mass
ATcT ID
Dihydrogen [H][H]00exact2.01588 ±
0.00014
1333-74-0*0
Helium [He]00exact4.0026020 ±
0.0000020
7440-59-7*0
Carbon [C]00exact12.01070 ±
0.00080
7440-44-0*500
Dinitrogen N#N00exact28.01348 ±
0.00014
7727-37-9*0
Dioxygen O=O00exact31.99880 ±
0.00060
7782-44-7*0
Difluorine FF00exact37.9968064 ±
0.0000010
7782-41-4*0
Neon [Ne]00exact20.17970 ±
0.00060
7440-01-9*0
Silicon [Si]00exact28.08550 ±
0.00030
7440-21-3*500
Dichlorine ClCl00exact70.9054 ±
0.0018
7782-50-5*0
Argon [Ar]00exact39.94800 ±
0.00100
7440-37-1*0
Dibromine BrBr00exact159.8080 ±
0.0020
7726-95-6*500
Krypton [Kr]00exact83.8000 ±
0.1000
7439-90-9*0
Diiodine II00exact253.808940 ±
0.000060
7553-56-2*500
Xenon [Xe]00exact131.2900 ±
0.0200
7440-63-3*0
Deuterium molecule [2H][2H]00exact4.02820355600 ±
0.00000000080
7782-39-0*0
Hydrogen atom [H]216.034217.998± 0.000kJ/mol1.007940 ±
0.000070
12385-13-6*0
Carbon [C]711.398716.883± 0.045kJ/mol12.01070 ±
0.00080
7440-44-0*0
Oxygen atom [O]246.844249.229± 0.0021kJ/mol15.99940 ±
0.00030
17778-80-2*0
Nitrogen atom [N]470.579472.442± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*0
Methane C-66.557-74.526± 0.049kJ/mol16.04246 ±
0.00085
74-82-8*0
Carbon dioxide C(=O)=O-393.110-393.476± 0.015kJ/mol44.00950 ±
0.00100
124-38-9*0
Ethane CC-68.41-84.04± 0.13kJ/mol30.0690 ±
0.0017
74-84-0*0
Chlorine atom [Cl]119.621121.302± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*0
Water O-286.298-285.826± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*500
Hydron [H+]1528.0841530.047± 0.000kJ/mol1.007391 ±
0.000070
12408-02-5*0
Water O-238.929-241.832± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*0
Fluorine atom [F]77.25879.364± 0.047kJ/mol18.99840320 ±
0.00000050
14762-94-8*0
Ethylene C=C60.8452.32± 0.12kJ/mol28.0532 ±
0.0016
74-85-1*0
Methyl [CH3]149.866146.452± 0.055kJ/mol15.03452 ±
0.00083
2229-07-4*0
Methanol CO-190.03-200.91± 0.15kJ/mol32.04186 ±
0.00090
67-56-1*0
Bromine atom [Br]117.917111.855± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*0
Propane CCC-82.78-105.07± 0.16kJ/mol44.0956 ±
0.0025
74-98-6*0
Hydroxyl [OH]37.25237.492± 0.026kJ/mol17.00734 ±
0.00031
3352-57-6*0
Hydrogen chloride Cl-91.989-92.173± 0.0062kJ/mol36.46064 ±
0.00090
7647-01-0*0
Carbon monoxide [C-]#[O+]-113.804-110.524± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*0
Formaldehyde C=O-105.376-109.214± 0.096kJ/mol30.02598 ±
0.00087
50-00-0*0
Ethanol CCO-217.32-235.04± 0.22kJ/mol46.0684 ±
0.0017
64-17-5*0
Ammonia N-38.565-45.558± 0.029kJ/mol17.03056 ±
0.00022
7664-41-7*0
Acetylene C#C228.84228.28± 0.13kJ/mol26.0373 ±
0.0016
74-86-2*0
Hydrogen fluoride F-272.674-272.721± 0.048kJ/mol20.006343 ±
0.000070
7664-39-3*0
Hydrogen bromide Br-27.60-35.45± 0.14kJ/mol80.9119 ±
0.0010
10035-10-6*0
Iodine [I]107.157106.757± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*0
Ethyl C[CH2]131.07119.99± 0.25kJ/mol29.0611 ±
0.0016
2025-56-1*0
Hydrogen cyanide C#N129.665129.280± 0.089kJ/mol27.02538 ±
0.00081
74-90-8*0
Nitric oxide [N]=O90.63191.135± 0.066kJ/mol30.00614 ±
0.00031
10102-43-9*0
Chloromethane CCl-74.31-82.24± 0.25kJ/mol50.4872 ±
0.0012
74-87-3*0
Propene CC=C34.8919.88± 0.19kJ/mol42.0797 ±
0.0024
115-07-1*0
Benzene c1ccccc1100.6383.12± 0.22kJ/mol78.1118 ±
0.0048
71-43-2*0
Propyne CC#C192.70185.64± 0.22kJ/mol40.0639 ±
0.0024
74-99-7*0
Nitrogen dioxide O=[N]=O36.87134.064± 0.066kJ/mol46.00554 ±
0.00060
10102-44-0*0
Hydrogen iodide I28.64626.471± 0.036kJ/mol127.912410 ±
0.000076
10034-85-2*0
Hydroxyde [OH-]-139.089-139.056± 0.026kJ/mol17.00789 ±
0.00031
14280-30-9*0
Dioxidanyl O[O]15.1212.21± 0.15kJ/mol33.00674 ±
0.00060
3170-83-0*0
Acetaldehyde CC=O-155.06-165.54± 0.25kJ/mol44.0526 ±
0.0017
75-07-0*0
Fluoromethane CF-227.46-235.49± 0.23kJ/mol34.03292 ±
0.00083
593-53-3*0
Hydrogen peroxide OO-129.472-135.458± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*0
n-Butane CCCC-98.44-125.75± 0.24kJ/mol58.1222 ±
0.0033
106-97-8*0
Allene C=C=C197.27189.78± 0.24kJ/mol40.0639 ±
0.0024
463-49-0*0
Bromomethane CBr-20.21-35.61± 0.26kJ/mol94.9385 ±
0.0013
74-83-9*0
Silicon [Si]450.53454.86± 0.64kJ/mol28.08550 ±
0.00030
7440-21-3*0
Methylamine CN-6.52-21.23± 0.24kJ/mol31.05714 ±
0.00088
74-89-5*0
Methylene [CH2]428.72429.13± 0.11kJ/mol14.02658 ±
0.00081
2465-56-7*2
Methylene [CH2]391.060391.617± 0.097kJ/mol14.02658 ±
0.00081
2465-56-7*1
Vinyl C=[CH]301.21297.01± 0.31kJ/mol27.0452 ±
0.0016
2669-89-8*0
Formic acid C(=O)O-371.09-378.40± 0.22kJ/mol46.0254 ±
0.0010
64-18-6*1
Methoxy C[O]28.8021.43± 0.28kJ/mol31.03392 ±
0.00088
2143-68-2*0
Hypochlorous acid OCl-73.866-76.805± 0.027kJ/mol52.46004 ±
0.00095
7790-92-3*0
Tetrafluoromethane C(F)(F)(F)F-927.50-933.47± 0.25kJ/mol88.00431 ±
0.00080
75-73-0*0
Dibromine BrBr45.6830.89± 0.12kJ/mol159.8080 ±
0.0020
7726-95-6*0
Acetone CC(=O)C-200.05-216.74± 0.35kJ/mol58.0791 ±
0.0025
67-64-1*0
Tetrachloromethane C(Cl)(Cl)(Cl)Cl-93.44-95.61± 0.43kJ/mol153.8215 ±
0.0037
56-23-5*0
Fluoride [F-]-250.907-249.122± 0.047kJ/mol18.99895178 ±
0.00000050
16984-48-8*0
Diiodine II65.49762.417± 0.0041kJ/mol253.808940 ±
0.000060
7553-56-2*0
iso-Butane CC(C)C-106.02-134.62± 0.30kJ/mol58.1222 ±
0.0033
75-28-5*0
1,3-Butadiene C=CC=C125.38110.90± 0.33kJ/mol54.0904 ±
0.0032
106-99-0*0
Ketene C=C=O-45.35-48.47± 0.11kJ/mol42.0367 ±
0.0016
463-51-4*0
Chloroethane CCCl-96.90-111.49± 0.26kJ/mol64.5138 ±
0.0019
75-00-3*0
Phenyl c1cccc[c]1350.67337.31± 0.51kJ/mol77.1039 ±
0.0048
2396-01-2*0
Hydroxymethyl [CH2]O-10.44-16.75± 0.27kJ/mol31.03392 ±
0.00088
2597-43-5*0
Toluene c1ccc(cc1)C73.3950.11± 0.33kJ/mol92.1384 ±
0.0056
108-88-3*0
Methylidyne [CH]592.825596.159± 0.097kJ/mol13.01864 ±
0.00080
3315-37-5*0
Methoxide C[O-]-122.59-130.32± 0.28kJ/mol31.03447 ±
0.00088
3315-60-4*0
Nitrilomethyl [C]#N436.76440.04± 0.14kJ/mol26.01744 ±
0.00080
2074-87-5*0
Acetonitrile CC#N81.1174.05± 0.25kJ/mol41.0520 ±
0.0016
75-05-8*0
Silane [SiH4]42.8833.27± 0.70kJ/mol32.11726 ±
0.00041
7803-62-5*0
Propargyl [CH2]C#C353.94351.35± 0.33kJ/mol39.0559 ±
0.0024
2932-78-7*0
Ozone O=[O+][O-]144.397141.735± 0.039kJ/mol47.99820 ±
0.00090
10028-15-6*0
Acetic acid CC(=O)O-418.61-432.73± 0.38kJ/mol60.0520 ±
0.0017
64-19-7*1
Oxonium [OH3+]605.85599.10± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*0
Fluoroform C(F)(F)F-689.05-696.00± 0.41kJ/mol70.01385 ±
0.00080
75-46-7*0
Trifluoromethyl [C](F)(F)F-464.95-467.75± 0.45kJ/mol69.00591 ±
0.00080
2264-21-3*0
Ethylium [CH2+]1[CH2][H]1914.95902.88± 0.30kJ/mol29.0606 ±
0.0016
14936-94-8*0
Phenol c1ccc(cc1)O-74.74-93.34± 0.63kJ/mol94.1112 ±
0.0048
108-95-2*0
Chloride [Cl-]-228.953-227.346± 0.0021kJ/mol35.45325 ±
0.00090
16887-00-6*0
Bromide [Br-]-206.619-212.682± 0.056kJ/mol79.90455 ±
0.00100
24959-67-9*0
Oxomethylium [CH+]=O827.770827.185± 0.096kJ/mol29.01749 ±
0.00086
17030-74-9*0
Hypobromous acid OBr-51.51-61.99± 0.47kJ/mol96.9113 ±
0.0010
13517-11-8*0
Amidogen [NH2]188.92186.03± 0.11kJ/mol16.02262 ±
0.00016
13770-40-6*0
Formyl [CH]=O41.39441.770± 0.096kJ/mol29.01804 ±
0.00086
2597-44-6*0
Chlorooxidanyl Cl=O101.124101.716± 0.035kJ/mol51.45210 ±
0.00095
14989-30-1*0
Formamide NC=O-178.57-188.94± 0.36kJ/mol45.04066 ±
0.00088
75-12-7*0
Methyl hydroperoxide COO-114.92-127.74± 0.50kJ/mol48.0413 ±
0.0010
3031-73-0*0
Allyl C=C[CH2]180.02168.30± 0.42kJ/mol41.0718 ±
0.0024
1981-80-2*0
Imidogen [NH]358.74358.79± 0.16kJ/mol15.014680 ±
0.000099
13774-92-0*0
Dioxymethyl [O-]\[O+]=C111.95104.95± 0.62kJ/mol46.0254 ±
0.0010
56077-92-0*0
Cyanoacetylene C#CC#N372.10373.84± 0.62kJ/mol51.0468 ±
0.0024
1070-71-9*0
Nitric acid O[N+](=O)[O-]-124.50-134.21± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*0
Ethoxide CC[O-]-163.98-178.92± 0.46kJ/mol45.0610 ±
0.0017
16331-64-9*0
Ethenol C=CO-113.11-124.29± 0.52kJ/mol44.0526 ±
0.0017
557-75-5*1
Vinyl chloride C=CCl29.2821.70± 0.30kJ/mol62.4979 ±
0.0018
75-01-4*0
Methylium [CH3+]1099.3391095.396± 0.050kJ/mol15.03397 ±
0.00083
14531-53-4*0
Iodide [I-]-187.995-188.396± 0.0021kJ/mol126.905019 ±
0.000030
20461-54-5*0
Cyanogen chloride ClC#N134.98135.67± 0.46kJ/mol61.4701 ±
0.0012
506-77-4*0
Methylperoxy CO[O]22.4613.01± 0.38kJ/mol47.0333 ±
0.0010
2143-58-0*0
Hydroxyformyl O[C]=O-181.14-184.10± 0.44kJ/mol45.0174 ±
0.0010
2564-86-5*1
Isocyanic acid N=C=O-115.97-118.96± 0.28kJ/mol43.02478 ±
0.00086
75-13-8*0
Difluorophosgene C(F)(F)=O-603.34-606.44± 0.41kJ/mol66.00691 ±
0.00085
353-50-4*0
Vinylacetylene C=CC#C296.17289.41± 0.58kJ/mol52.0746 ±
0.0032
689-97-4*0
Hypofluorous acid OF-84.39-87.29± 0.19kJ/mol36.00574 ±
0.00031
14034-79-8*0
Hydrogen chloride Cl-166.452± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*834
Dichloromethane C(Cl)Cl-86.52-93.38± 0.52kJ/mol84.9320 ±
0.0020
75-09-2*0
1,3-Butadiyne C#CC#C458.27460.00± 0.58kJ/mol50.0587 ±
0.0032
460-12-8*0
Chlorobenzene c1ccc(cc1)Cl67.1552.20± 0.61kJ/mol112.5566 ±
0.0049
108-90-7*0
Ethynyl C#[C]563.88567.99± 0.14kJ/mol25.0293 ±
0.0016
2122-48-7*0
Cyanogen bromide BrC#N187.1180.5± 1.1kJ/mol105.9214 ±
0.0013
506-68-3*0
Iodomethane CI24.5114.98± 0.18kJ/mol141.93899 ±
0.00083
74-88-4*0
Oxygen atom anion [O-]105.868108.097± 0.0021kJ/mol15.99995 ±
0.00030
14337-01-0*0
n-Propyl CC[CH2]118.26100.85± 0.51kJ/mol43.0877 ±
0.0024
2143-61-5*0
iso-Propyl C[CH]C105.3088.43± 0.49kJ/mol43.0877 ±
0.0024
2025-55-0*0
Trihydrogen cation [H]1[H+][H]11110.3041106.696± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*0
Acetyl C[C]=O-3.62-10.28± 0.32kJ/mol43.0446 ±
0.0016
3170-69-2*0
Cyclopropene C1C=C1292.27283.54± 0.47kJ/mol40.0639 ±
0.0024
2781-85-3*0
Cyclopentadiene C1C=CC=C1151.28134.15± 0.63kJ/mol66.1011 ±
0.0040
542-92-7*0
2-Hydroxyethyl [CH2]CO-13.37-26.63± 0.56kJ/mol45.0605 ±
0.0017
4422-54-2*1
Tetrabromomethane C(Br)(Br)(Br)Br133.5103.8± 1.3kJ/mol331.6267 ±
0.0041
558-13-4*0
Difluoromethane C(F)F-443.14-450.76± 0.33kJ/mol52.02339 ±
0.00081
75-10-5*0
Ethynide C#[C-]277.43280.84± 0.18kJ/mol25.0299 ±
0.0016
29075-95-4*0
Oxygen difluoride FOF26.8224.57± 0.24kJ/mol53.99621 ±
0.00030
7783-41-7*0
Hypochlorite [Cl-]=O-118.60-118.33± 0.13kJ/mol51.45265 ±
0.00095
14380-61-1*0
Nitrosyl hydride N=O109.94106.97± 0.11kJ/mol31.01408 ±
0.00032
14332-28-6*0
2-Butyne CC#CC159.43146.47± 0.49kJ/mol54.0904 ±
0.0032
503-17-3*0
Isocyanomethane C[N+]#[C-]183.86177.31± 0.49kJ/mol41.0520 ±
0.0016
593-75-9*0
Cyclopropane C1CC170.9753.84± 0.40kJ/mol42.0797 ±
0.0024
75-19-4*0
Propynylidene [CH]=C=[CH]543.45546.45± 0.65kJ/mol38.0480 ±
0.0024
67152-18-5*1
Butatriene C=C=C=C328.21321.96± 0.65kJ/mol52.0746 ±
0.0032
2873-50-9*0
Methoxymethane COC-166.52-184.02± 0.40kJ/mol46.0684 ±
0.0017
115-10-6*0
Chloroform C(Cl)(Cl)Cl-97.16-102.07± 0.50kJ/mol119.3767 ±
0.0028
67-66-3*0
Fluoromethylidyne [C]F243.14246.74± 0.12kJ/mol31.00910 ±
0.00080
3889-75-6*0
Acrylonitrile C=CC#N193.75186.99± 0.66kJ/mol53.0627 ±
0.0024
107-13-1*1
Silanol [SiH3]O-270.9-282.6± 1.3kJ/mol48.11666 ±
0.00051
14475-38-8*0
Oxygen atom cation [O+]1560.7861562.644± 0.0021kJ/mol15.99885 ±
0.00030
14581-93-2*0
Nitrous acid N(=O)O-72.991-79.134± 0.079kJ/mol47.01348 ±
0.00061
7782-77-6*1
1,2-Propadiene-1,3-diylidene [C]=C=[C]814.65823.61± 0.54kJ/mol36.0321 ±
0.0024
12075-35-3*0
Cyanic fluoride FC#N8.769.09± 0.69kJ/mol45.01584 ±
0.00080
1495-50-7*0
1-Hydroxyethyl C[CH]O-42.79-56.22± 0.57kJ/mol45.0605 ±
0.0017
2348-46-1*1
Ethoxy CC[O]1.15-12.76± 0.45kJ/mol45.0605 ±
0.0017
2154-50-9*51
Formate C(=O)[O-]-463.23-466.88± 0.56kJ/mol45.0180 ±
0.0010
71-47-6*0
Methyl formate COC=O-346.88-359.93± 0.84kJ/mol60.0520 ±
0.0017
107-31-3*1
Dimethylamine CNC4.08-17.55± 0.42kJ/mol45.0837 ±
0.0017
124-40-3*0
Tetrafluoroethylene C(=C(F)F)(F)F-670.99-674.40± 0.52kJ/mol100.0150 ±
0.0016
116-14-3*0
Chlorotrifluoromethane C(F)(F)(F)Cl-704.54-709.65± 0.57kJ/mol104.4586 ±
0.0012
75-72-9*0
Ethyl bromide CCBr-41.12-63.06± 0.25kJ/mol108.9651 ±
0.0019
74-96-4*0
Vinyl bromide C=CBr88.7073.90± 0.57kJ/mol106.9492 ±
0.0019
593-60-2*0
Methanimine C=N96.4888.57± 0.40kJ/mol29.04126 ±
0.00083
2053-29-4*0
Methyl nitrite CON=O-55.52-67.30± 0.45kJ/mol61.0401 ±
0.0010
624-91-9*2
Chlorine fluoride ClF-55.617-55.712± 0.053kJ/mol54.45110 ±
0.00090
7790-89-8*0
Diazynium N#[NH+]1042.431038.82± 0.68kJ/mol29.02087 ±
0.00016
12357-66-3*0
Nitrite O=[N-]=O-182.62-185.42± 0.46kJ/mol46.00609 ±
0.00060
14797-65-0*0
Hydroxylamine NO-33.12-43.50± 0.45kJ/mol33.02996 ±
0.00037
7803-49-8*1
Hydride [H-]143.264145.228± 0.000kJ/mol1.008489 ±
0.000070
12184-88-2*0
n-Butyl CCC[CH2]102.7880.28± 0.71kJ/mol57.1143 ±
0.0033
2492-36-6*0
Methyl acetate CC(=O)OC-394.22-413.09± 0.60kJ/mol74.0785 ±
0.0025
79-20-9*1
Phosgene C(=O)(Cl)Cl-217.45-219.14± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*0
Vinyl fluoride C=CF-134.61-142.42± 0.45kJ/mol46.0436 ±
0.0016
75-02-5*0
Phenylium c1cccc[c+]11148.551135.77± 0.85kJ/mol77.1034 ±
0.0048
17333-73-2*0
Fluorooxidanyl [O]F110.27110.90± 0.15kJ/mol34.99780 ±
0.00030
12061-70-0*0
Hypoiodous acid OI-54.2-58.9± 3.1kJ/mol143.91181 ±
0.00031
14332-21-9*0
Methanium [CH5+]921.96911.71± 0.44kJ/mol17.04985 ±
0.00087
15135-49-6*0
Oxirane C1OC1-40.07-52.60± 0.37kJ/mol44.0526 ±
0.0017
75-21-8*0
cis-2-Butene C/C=C\C14.23-7.05± 0.40kJ/mol56.1063 ±
0.0032
590-18-1*0
Formic acid C(=O)O-354.75-361.85± 0.38kJ/mol46.0254 ±
0.0010
64-18-6*2
Cyanooxidanyl N#C[O]126.93127.41± 0.33kJ/mol42.01684 ±
0.00086
22400-26-6*0
Methanetetraylbisamidogen [N]=C=[N]451.24451.64± 0.44kJ/mol40.02418 ±
0.00081
2669-76-3*0
Fluoroethane CCF-257.27-272.13± 0.36kJ/mol48.0595 ±
0.0016
353-36-6*0
Bromotrifluoromethane C(F)(F)(F)Br-638.88-651.00± 0.44kJ/mol148.9099 ±
0.0013
75-63-8*0
Phenide c1cccc[c-]1244.43231.01± 0.38kJ/mol77.1044 ±
0.0048
30922-78-2*0
Fluorobenzene c1ccc(cc1)F-99.08-114.76± 0.89kJ/mol96.1023 ±
0.0048
462-06-6*0
Nitromethane C[N+](=O)[O-]-60.81-74.71± 0.46kJ/mol61.0401 ±
0.0010
75-52-5*0
Acrylonitrile C=CC#N193.75186.99± 0.66kJ/mol53.0627 ±
0.0024
107-13-1*0
1,2,3-Butatrien-1-yl C=C=C=[CH]497.34497.36± 0.70kJ/mol51.0666 ±
0.0032
22112-56-7*0
2,4-Hexadiyne CC#CC#CC380.15370.13± 0.87kJ/mol78.1118 ±
0.0048
2809-69-0*0
Dioxygen cation O=[O+]1164.5851165.221± 0.0092kJ/mol31.99825 ±
0.00060
12185-07-8*0
Ethynylene [C]=[C]820.33828.80± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*0
Methylidyne [CH]664.60667.93± 0.54kJ/mol13.01864 ±
0.00080
3315-37-5*2
Ethanide C[CH2-]155.29144.21± 0.87kJ/mol29.0616 ±
0.0016
25013-41-6*0
Vinylium [CH+]1[CH][H]11119.071115.63± 0.55kJ/mol27.0447 ±
0.0016
14604-48-9*0
Vinyl anion C=[CH-]237.06232.64± 0.73kJ/mol27.0458 ±
0.0016
25012-81-1*0
Aminomethyl [CH2]N159.27149.42± 0.37kJ/mol30.04920 ±
0.00085
10507-29-6*0
Cyanide [C-]#N63.96067.246± 0.093kJ/mol26.01799 ±
0.00080
57-12-5*0
Cyanomethyl [CH2]C#N263.39260.51± 0.68kJ/mol40.0440 ±
0.0016
2932-82-3*0
Peroxyformic acid C(=O)OO-279.24-288.59± 0.88kJ/mol62.0248 ±
0.0012
107-32-4*1
Propadienylidene C=C=[C]554.37555.52± 0.40kJ/mol38.0480 ±
0.0024
60731-10-4*0
Isobutene CC(=C)C4.06-17.01± 0.39kJ/mol56.1063 ±
0.0032
115-11-7*0
Cyclopentane C1CCCC1-43.85-76.42± 0.42kJ/mol70.1329 ±
0.0041
287-92-3*0
Phenolate c1ccc(cc1)[O-]-146.59-162.06± 0.84kJ/mol93.1038 ±
0.0048
3229-70-7*0
Cyclopentadienyl [CH]1C=CC=C1274.64261.53± 0.92kJ/mol65.0932 ±
0.0040
2143-53-5*0
Carbamoyl N[C]=O-7.78-14.18± 0.74kJ/mol44.03272 ±
0.00087
2858-51-7*0
Tetrahedrane C12C3C1C23547.7539.3± 1.2kJ/mol52.0746 ±
0.0032
157-39-1*0
Ethylamine CCN-28.26-50.03± 0.54kJ/mol45.0837 ±
0.0017
75-04-7*0
Chlorine dioxide O=Cl=O101.4298.95± 0.29kJ/mol67.4515 ±
0.0011
10049-04-4*0
Bromooxidanyl Br[O]131.16123.62± 0.28kJ/mol95.9034 ±
0.0010
15656-19-6*0
Hypobromite Br[O-]-96.13-103.61± 0.53kJ/mol95.9039 ±
0.0010
14380-62-2*0
Ammonium [NH4+]643.02631.71± 0.21kJ/mol18.03795 ±
0.00029
14798-03-9*0
(E)-Diazene [H]/N=N/[H]207.12199.98± 0.41kJ/mol30.02936 ±
0.00020
15626-43-4*0
Peroxynitrous acid OON=O-5.80-14.24± 0.36kJ/mol63.01288 ±
0.00091
14691-52-2*3
Ethylidene [CH]C373.48366.25± 0.65kJ/mol28.0532 ±
0.0016
4218-50-2*2
Cyanogen N#CC#N308.17310.12± 0.41kJ/mol52.0349 ±
0.0016
460-19-5*0
1-Butene CCC=C21.040.09± 0.36kJ/mol56.1063 ±
0.0032
106-98-9*0
n-Pentane CCCCC-114.37-146.25± 0.31kJ/mol72.1488 ±
0.0041
109-66-0*0
n-Hexane CCCCCC-130.02-166.89± 0.34kJ/mol86.1754 ±
0.0049
110-54-3*0
Trimethylamine CN(C)C2.11-26.74± 0.76kJ/mol59.1103 ±
0.0025
75-50-3*0
Dichloromethylene [C](Cl)Cl229.51230.69± 0.64kJ/mol82.9161 ±
0.0020
1605-72-7*2
Trifluoromethylium [C+](F)(F)F409.53406.32± 0.46kJ/mol69.00536 ±
0.00080
18851-76-8*0
Hydrogen fluoride F-334.50± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*800
Ethyl nitrite CCON=O-81.38-100.12± 0.88kJ/mol75.0666 ±
0.0017
109-95-5*1
Water O-285.826± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*590
Azido radical [N]N=[N]452.28449.70± 0.60kJ/mol42.02022 ±
0.00021
12596-60-0*0
Nitrous oxide [N-]=[N+]=O86.00082.571± 0.097kJ/mol44.01288 ±
0.00033
10024-97-2*0
Hydroxyoxomethylium O[C+]=O600.66597.57± 0.44kJ/mol45.0169 ±
0.0010
638-71-1*0
Hydroxyamidogen [NH]O101.3794.53± 0.81kJ/mol32.02202 ±
0.00034
13940-32-4*1
Hydrazoic acid N=[N+]=[N-]297.93291.63± 0.49kJ/mol43.02816 ±
0.00022
7782-79-8*0
Ethylidene [CH]C361.20354.20± 0.51kJ/mol28.0532 ±
0.0016
4218-50-2*1
Vinylidene [C]=C411.19412.10± 0.30kJ/mol26.0373 ±
0.0016
2143-69-3*0
Acetylium C[C+]=O666.59659.31± 0.44kJ/mol43.0441 ±
0.0016
15762-07-9*0
Hydroxymethylium [CH2+]O717.68709.74± 0.18kJ/mol31.03337 ±
0.00088
18682-95-6*0
Fluoroacetylene C#CF104.96105.67± 0.40kJ/mol44.0277 ±
0.0016
2713-09-9*0
Peroxyformyl C(=O)O[O]-100.37-105.67± 0.92kJ/mol61.0168 ±
0.0012
56240-83-6*1
trans-2-Butene C/C=C/C9.42-11.14± 0.38kJ/mol56.1063 ±
0.0032
624-64-6*0
1,2-Butadiene CC=C=C175.91162.41± 0.46kJ/mol54.0904 ±
0.0032
590-19-2*0
Trioxidane OOO-82.01-90.85± 0.63kJ/mol50.01408 ±
0.00091
14699-99-1*1
Ketenyl [CH]=C=O177.06178.16± 0.55kJ/mol41.0287 ±
0.0016
51095-15-9*0
Formic acid C(=O)O-371.09-378.38± 0.22kJ/mol46.0254 ±
0.0010
64-18-6*0
Dioxidanide O[O-]-88.87-91.53± 0.35kJ/mol33.00729 ±
0.00060
14691-59-9*0
Acetic acid CC(=O)O-397.81-411.59± 0.53kJ/mol60.0520 ±
0.0017
64-19-7*2
Methyl formate COC=O-326.7-339.1± 1.1kJ/mol60.0520 ±
0.0017
107-31-3*2
Trichloromethyl [C](Cl)(Cl)Cl72.0171.54± 0.84kJ/mol118.3688 ±
0.0028
3170-80-7*0
1,1-Dichloroethane CC(Cl)Cl-120.29-133.07± 0.44kJ/mol98.9586 ±
0.0024
75-34-3*0
Difluorodioxidane FOOF35.3131.58± 0.41kJ/mol69.99561 ±
0.00060
7783-44-0*0
Bromoform C(Br)(Br)Br75.749.6± 1.3kJ/mol252.7306 ±
0.0031
75-25-2*0
Bromobenzene c1ccc(cc1)Br126.7104.6± 1.3kJ/mol157.0079 ±
0.0049
108-86-1*0
Benzaldehyde c1ccc(cc1)C=O-19.28-37.07± 0.91kJ/mol106.1219 ±
0.0056
100-52-7*0
Propionaldehyde CCC=O-171.36-186.77± 0.25kJ/mol58.0791 ±
0.0025
123-38-6*0
Nitrosomethane CN=O80.7870.87± 0.91kJ/mol45.04066 ±
0.00088
865-40-7*0
Isocyanoacetylene C#C[N+]#[C-]484.7486.9± 1.0kJ/mol51.0468 ±
0.0024
66723-45-3*0
Silanone [SiH2]=O-93.6-98.9± 1.1kJ/mol46.10078 ±
0.00045
22755-01-7*0
Silyloxy [SiH3][O]8.50.5± 1.5kJ/mol47.10872 ±
0.00047
81429-20-1*0
Chlorous acid OCl=O25.7920.74± 0.63kJ/mol68.4594 ±
0.0011
13898-47-0*0
Iodooxidanyl I[O]126.99125.06± 0.82kJ/mol142.90387 ±
0.00030
14696-98-1*0
Carbon monoxide cation [C]#[O+]1238.3061241.585± 0.026kJ/mol28.00955 ±
0.00085
12144-04-6*0
Azanide [NH2-]114.82111.94± 0.29kJ/mol16.02317 ±
0.00016
17655-31-1*0
Hydrazine NN111.7297.57± 0.42kJ/mol32.04524 ±
0.00031
302-01-2*0
Aminooxy N[O]70.9364.32± 0.71kJ/mol32.02202 ±
0.00034
13408-29-2*0
Nitrate O=[N+]([O-])[O-]-300.33-306.88± 0.60kJ/mol62.00549 ±
0.00090
14797-55-8*0
Fluorodioxidanyl FO[O]26.8825.17± 0.26kJ/mol50.99720 ±
0.00060
15499-23-7*0
Cyanogen iodide IC#N222.6222.0± 1.6kJ/mol152.92191 ±
0.00080
506-78-5*0
Formyl anion [CH-]=O11.6011.98± 0.44kJ/mol29.01859 ±
0.00086
57340-31-5*0
1-Methylethenyl C[C]=C263.07252.68± 0.67kJ/mol41.0718 ±
0.0024
15552-77-9*0
1,2-Propadienyl anion C=C=[CH-]265.76262.70± 0.67kJ/mol39.0565 ±
0.0024
64066-06-4*0
2-Propynylidyne C#C[C]718.01722.36± 0.80kJ/mol37.0400 ±
0.0024
53590-28-6*0
neo-Pentane CC(C)(C)C-134.52-167.39± 0.39kJ/mol72.1488 ±
0.0041
463-82-1*0
Hypofluorite [O-]F-108.84-108.67± 0.48kJ/mol34.99835 ±
0.00030
12763-66-5*0
Ethoxy CC[O]5.42-9.02± 0.45kJ/mol45.0605 ±
0.0017
2154-50-9*52
Dicarbon monoxide [C]=C=O377.12381.16± 0.83kJ/mol40.0208 ±
0.0016
12071-23-7*1
1-Propanol CCCO-231.40-255.24± 0.25kJ/mol60.0950 ±
0.0025
71-23-8*0
Chloromethylene [CH]Cl320.27320.55± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*2
Dibromomethane C(Br)Br26.04.6± 1.1kJ/mol173.8346 ±
0.0022
74-95-3*0
1,1-Difluoroethene C=C(F)F-343.58-350.64± 0.77kJ/mol64.0341 ±
0.0016
75-38-7*0
3-Buten-2-one CC(=O)C=C-95.49-111.73± 0.87kJ/mol70.0898 ±
0.0032
78-94-4*1
Urea NC(=O)N-218.22-234.62± 0.42kJ/mol60.05534 ±
0.00091
57-13-6*0
Oxomethaniminium [NH2+]=C=O695.30688.74± 0.90kJ/mol44.03217 ±
0.00087
59348-22-0*0
Acetamide CC(=O)N-219.62-237.13± 0.57kJ/mol59.0672 ±
0.0017
60-35-5*0
Cyclobutadiene C1=CC=C1436.50428.05± 0.79kJ/mol52.0746 ±
0.0032
1120-53-2*0
1,3-Hexadiyne CCC#CC#C405.04393.34± 0.98kJ/mol78.1118 ±
0.0048
4447-21-6*0
Iodine monochloride ICl19.02417.391± 0.013kJ/mol162.35717 ±
0.00090
7790-99-0*0
Iodotrifluoromethane C(F)(F)(F)I-583.45-589.33± 0.49kJ/mol195.91038 ±
0.00080
2314-97-8*0
Trinitrogen cation [N]N=[N+]1519.441516.81± 0.89kJ/mol42.01967 ±
0.00021
12185-03-4*0
Oxonitrate anion N#[O-]88.1188.14± 0.25kJ/mol30.00669 ±
0.00031
14967-78-3*0
Nitrosyl ion N#[O+]984.499984.494± 0.066kJ/mol30.00559 ±
0.00031
14452-93-8*0
Nitrogen sesquioxide O=N-[N](=O)[O]90.7586.18± 0.15kJ/mol76.01168 ±
0.00091
10544-73-7*0
Methylene anion [CH2-]328.17328.60± 0.18kJ/mol14.02713 ±
0.00081
50928-07-9*0
Methylidyne anion [CH-]475.74479.07± 0.22kJ/mol13.01919 ±
0.00080
28604-54-8*0
Ethanium [CH3+][H][CH3]874.32858.05± 0.62kJ/mol31.0764 ±
0.0017
24669-33-8*1
Hydrogen isocyanide [C]=N192.05192.43± 0.33kJ/mol27.02538 ±
0.00081
6914-07-4*0
Hydroxymethylene [CH]O112.68108.91± 0.27kJ/mol30.02598 ±
0.00087
19710-56-6*1
Carbonic acid OC(=O)O-602.73-612.90± 0.75kJ/mol62.0248 ±
0.0012
463-79-6*1
Peroxyformate C(=O)O[O-]-340.91-346.36± 0.95kJ/mol61.0174 ±
0.0012
104960-05-6*1
Isoprene CC(=C)C=C96.1275.60± 0.67kJ/mol68.1170 ±
0.0040
78-79-5*0
1-Hydroxyethylium C[CH+]O608.75594.32± 0.39kJ/mol45.0600 ±
0.0017
18682-96-7*1
Chlorine trifluoride FCl(F)F-158.6-162.7± 1.2kJ/mol92.44791 ±
0.00090
7790-91-2*0
Ethynol C#CO95.3192.82± 0.80kJ/mol42.0367 ±
0.0016
32038-79-2*2
Formyloxidanyl C(=O)[O]-125.90-127.56± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*1
Chloronium [H][ClH+]881.3878.2± 1.1kJ/mol37.46803 ±
0.00091
36658-55-6*0
Glyoxal O=CC=O-207.71-213.35± 0.61kJ/mol58.0361 ±
0.0017
107-22-2*1
1,1,1-Trichloroethane CC(Cl)(Cl)Cl-134.33-144.90± 0.48kJ/mol133.4033 ±
0.0031
71-55-6*0
Tetrachloroethene C(=C(Cl)Cl)(Cl)Cl-22.3-23.2± 1.1kJ/mol165.8322 ±
0.0039
127-18-4*0
Chlorodifluoromethane C(F)(F)Cl-476.01-482.21± 0.98kJ/mol86.4681 ±
0.0012
75-45-6*0
Fluoromethylene [CH]F148.39148.67± 0.43kJ/mol32.01704 ±
0.00080
13453-52-6*2
Fluoroformyl F[C]=O-176.61-176.03± 0.37kJ/mol47.00850 ±
0.00085
1871-24-5*0
2-Bromoethanol BrCCO-196.15-220.21± 0.53kJ/mol124.9645 ±
0.0019
540-51-2*0
Carbon suboxide O=C=C=C=O-94.9-92.8± 1.2kJ/mol68.0309 ±
0.0025
504-64-3*0
Benzyl c1ccc(cc1)[CH2]230.05211.24± 0.56kJ/mol91.1305 ±
0.0056
2154-56-5*0
Phenoxy c1ccc(cc1)[O]70.8755.58± 0.84kJ/mol93.1033 ±
0.0048
2122-46-5*0
1-Cyanovinyl C=[C]C#N419.0418.9± 1.1kJ/mol52.0547 ±
0.0024
15091-87-9*0
Cyanomethylene [CH]C#N479.9483.3± 1.1kJ/mol39.0361 ±
0.0016
2612-62-6*1
3-Methylenecyclopropene C=C1C=C1395.82387.88± 0.85kJ/mol52.0746 ±
0.0032
4095-06-1*0
Phenylperoxy c1ccc(cc1)O[O]153.1136.1± 1.4kJ/mol109.1027 ±
0.0049
91422-02-5*0
Trimethylsilane C[SiH](C)C-124.6-150.7± 1.6kJ/mol74.1970 ±
0.0025
993-07-7*0
Hydrogen bromide Br-120.59± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*800
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*1
Bromonium [H][BrH+]925.3914.6± 1.5kJ/mol81.9193 ±
0.0010
36658-54-5*0
Methanide [CH3-]141.10137.66± 0.24kJ/mol15.03507 ±
0.00083
15194-58-8*0
Methyliumyl [CH2+]1393.191394.05± 0.11kJ/mol14.02603 ±
0.00081
15091-72-2*0
Ethylidyne [C]C640.7636.1± 1.1kJ/mol27.0452 ±
0.0016
67624-57-1*2
Aminomethylium [CH2+]N763.98752.01± 0.64kJ/mol30.04865 ±
0.00085
488821-23-4*0
Isocyanomethanide [CH2-][N+]#[C-]254.04251.00± 0.96kJ/mol40.0446 ±
0.0016
81704-80-5*0
1-Methylethylidene C[C]C315.91302.01± 0.99kJ/mol42.0797 ±
0.0024
40852-89-9*2
1-Butyne CCC#C180.26166.68± 0.67kJ/mol54.0904 ±
0.0032
107-00-6*0
Trioxidanide OO[O-]-120.0-123.1± 1.6kJ/mol49.00669 ±
0.00090
89965-38-8*2
iso-Pentane CCC(C)C-119.12-153.17± 0.43kJ/mol72.1488 ±
0.0041
78-78-4*0
Cyclohexane C1CCCCC1-83.37-122.94± 0.30kJ/mol84.1595 ±
0.0049
110-82-7*0
1-Hydroxyethyl C[CH]O-41.35-54.82± 0.79kJ/mol45.0605 ±
0.0017
2348-46-1*2
Protonated oxirane [OH+]1CC1725.57709.40± 0.62kJ/mol45.0600 ±
0.0017
*38607-31-7*0
Methanediol C(O)O-379.36-393.56± 0.92kJ/mol48.0413 ±
0.0010
463-57-0*1
Methoxyethane CCOC-194.43-217.32± 0.58kJ/mol60.0950 ±
0.0025
540-67-0*0
Cyanic acid OC#N-12.34-15.06± 0.43kJ/mol43.02478 ±
0.00086
420-05-3*0
Fulminic acid C#[N+][O-]170.70169.25± 0.44kJ/mol43.02478 ±
0.00086
51060-05-0*0
Isofulminic acid O[N+]#[C-]235.22233.52± 0.43kJ/mol43.02478 ±
0.00086
506-85-4*0
Nitrosomethylidyne [C]N=O389.3390.7± 1.1kJ/mol42.01684 ±
0.00086
82267-15-0*0
Acetic acid CC(=O)O-418.61-432.74± 0.38kJ/mol60.0520 ±
0.0017
64-19-7*0
Hydrogen chloride Cl-166.992± 0.023kJ/mol36.46064 ±
0.00090
7647-01-0*800
Acetyl chloride CC(=O)Cl-232.58-241.57± 0.33kJ/mol78.4973 ±
0.0019
75-36-5*0
Chlorohydroxymethyl [CH](Cl)O-54.7-60.8± 1.1kJ/mol65.4787 ±
0.0012
147139-06-8*1
1,1-Dichloroethene C=C(Cl)Cl8.942.95± 0.49kJ/mol96.9427 ±
0.0024
75-35-4*0
Dichlorodifluoromethane C(F)(F)(Cl)Cl-489.47-493.65± 0.67kJ/mol120.9129 ±
0.0020
75-71-8*0
Fluorodichloromethane C(F)(Cl)Cl-278.14-283.59± 0.91kJ/mol102.9224 ±
0.0020
75-43-4*0
Difluoromethylene [C](F)F-193.89-193.42± 0.36kJ/mol50.00751 ±
0.00080
2154-59-8*2
Fluoromethylene [CH]F210.36210.70± 0.66kJ/mol32.01704 ±
0.00080
13453-52-6*1
Formyl fluoride FC=O-378.63-382.22± 0.31kJ/mol48.01644 ±
0.00086
1493-02-3*0
Propyl nitrite CCCON=O-96.1-121.1± 1.8kJ/mol89.0932 ±
0.0025
543-67-9*1
2-Cyanovinyl [CH]=CC#N448.0445.5± 1.2kJ/mol52.0547 ±
0.0024
189141-20-6*2
1,2,3-Butatrien-1-ylium C=C=C=[CH+]1271.71269.9± 1.1kJ/mol51.0661 ±
0.0032
81932-79-8*2
1-Buten-3-yn-1-yl C#CC=[CH]547.17544.51± 0.88kJ/mol51.0666 ±
0.0032
2810-61-9*1
Silyl [SiH3]204.6199.2± 1.1kJ/mol31.10932 ±
0.00037
13765-44-1*0
Hydroxysilyl [SiH2]O-104.2-112.1± 1.6kJ/mol47.10872 ±
0.00047
113648-09-2*0
Trimethylsilanol C[Si](C)(C)O-464.5-490.8± 1.9kJ/mol90.1964 ±
0.0025
1066-40-6*0
2-Propanamine CC(C)N-56.78-83.57± 0.53kJ/mol59.1103 ±
0.0025
75-31-0*0
Hypoiodite I[O-]-102.46-104.27± 0.88kJ/mol142.90442 ±
0.00030
15065-65-3*0
Dinitrogen cation N#[N+]1503.3111503.312± 0.000kJ/mol28.01293 ±
0.00014
13966-04-6*0
Carbon dioxide cation [C+](=O)=O936.091936.926± 0.017kJ/mol44.00895 ±
0.00100
12181-61-2*0
Ammonium [NH4+]-133.075± 0.056kJ/mol18.03795 ±
0.00029
14798-03-9*800
Hydrazino N[NH]234.77224.25± 0.69kJ/mol31.03730 ±
0.00025
13598-46-4*0
Methylamidogen C[NH]187.58176.93± 0.46kJ/mol30.04920 ±
0.00085
15622-51-2*0
Methyleneamidogen C=[N]242.00238.35± 0.58kJ/mol28.03332 ±
0.00082
15845-29-1*0
(E)-Iminomethyl [CH]=N275.79272.18± 0.61kJ/mol28.03332 ±
0.00082
54980-10-8*0
Hydrogen isocyanide cation [C+]=N1351.511351.47± 0.84kJ/mol27.02483 ±
0.00081
74158-11-5*0
Chloroacetylene C#CCl228.13228.99± 0.70kJ/mol60.4820 ±
0.0018
593-63-5*0
Dichloride Cl[Cl-]-229.8-228.7± 1.4kJ/mol70.9059 ±
0.0018
12595-89-0*0
iso-Propylium C[CH+]C822.88805.80± 0.24kJ/mol43.0871 ±
0.0024
19252-53-0*0
Chlorine atom cation [Cl+]1370.8061372.602± 0.0011kJ/mol35.45215 ±
0.00090
24203-47-2*0
n-Propylide CC[CH2-]122.9105.3± 1.2kJ/mol43.0882 ±
0.0024
59513-13-2*0
Hydroperoxonium [OH2+]O738.1727.8± 1.2kJ/mol35.02207 ±
0.00064
70850-26-9*1
1-Propenyl CC=[CH]278.31267.47± 0.75kJ/mol41.0718 ±
0.0024
6067-68-1*2
Propargylenide C#C[CH-]434.4436.9± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*1
t-Butyl C[C](C)C75.0849.78± 0.77kJ/mol57.1143 ±
0.0033
1605-73-8*0
Cyclobutane C1CCC152.3527.81± 0.39kJ/mol56.1063 ±
0.0032
287-23-0*0
Cyclobutene C1CC=C1177.65160.60± 0.71kJ/mol54.0904 ±
0.0032
822-35-5*0
2-Butynyl CC#C[CH2]318.07310.70± 0.79kJ/mol53.0825 ±
0.0032
82252-88-8*0
2-Hydroxyethyl [CH2]CO-10.84-23.47± 0.82kJ/mol45.0605 ±
0.0017
4422-54-2*2
Ketene C=C=O182.0177.0± 1.1kJ/mol42.0367 ±
0.0016
463-51-4*1
Chloro hypochlorite ClOCl79.7877.97± 0.36kJ/mol86.9048 ±
0.0018
7791-21-1*0
Oxoethylidene [CH]C=O261.1257.6± 1.1kJ/mol42.0367 ±
0.0016
39920-84-8*12
Methanediol C(O)O-369.05-382.21± 0.95kJ/mol48.0413 ±
0.0010
463-57-0*2
Methoxyethene C=COC-89.3-107.1± 1.1kJ/mol58.0791 ±
0.0025
107-25-5*2
Methyl acetate CC(=O)OC-363.4-382.1± 1.2kJ/mol74.0785 ±
0.0025
79-20-9*2
Carboxymethyl [CH2]C(=O)O-227.2-237.0± 1.2kJ/mol59.0440 ±
0.0017
2887-46-9*1
(Methylamino)methyl CN[CH2]167.93151.48± 0.95kJ/mol44.0758 ±
0.0017
31277-24-4*0
Dimethylamidogen C[N]C173.9156.6± 1.5kJ/mol44.0758 ±
0.0017
15337-44-7*0
Cyanoamidogen [NH]C#N322.94320.45± 0.84kJ/mol41.03212 ±
0.00082
12347-01-2*0
Bromotrichloromethane C(Cl)(Cl)(Cl)Br-32.75-41.89± 0.59kJ/mol198.2728 ±
0.0030
75-62-7*0
Chloromethylidyne [C]Cl430.43434.18± 0.67kJ/mol47.4634 ±
0.0012
3889-76-7*0
Chlorine pentafluoride FCl(F)(F)(F)F-226.1-234.2± 1.7kJ/mol130.44472 ±
0.00090
13637-63-3*0
Chloromethanol ClCO-232.2-242.5± 1.2kJ/mol66.4866 ±
0.0013
15454-33-8*0
Chloromethoxy C(Cl)[O]-11.9-18.7± 1.1kJ/mol65.4787 ±
0.0012
114282-89-2*0
Tetraiodomethane C(I)(I)(I)I332.2327.1± 4.1kJ/mol519.62858 ±
0.00081
507-25-5*0
Fluorotrichloromethane C(Cl)(Cl)(Cl)F-285.28-288.43± 0.78kJ/mol137.3672 ±
0.0028
75-69-4*0
Chlorooxy hypochlorite ClOOCl134.56131.33± 0.56kJ/mol102.9042 ±
0.0019
12292-23-8*0
2-Chloroethanol ClCCO-249.80-266.52± 0.59kJ/mol80.5132 ±
0.0019
107-07-3*0
o-Benzyne C1=CC#CC=C1468.12459.20± 0.87kJ/mol76.0960 ±
0.0048
462-80-6*2
Tropyl [CH]1C=CC=CC=C1295.8278.4± 1.1kJ/mol91.1305 ±
0.0056
3551-27-7*0
Iodobenzene c1ccc(cc1)I177.82161.83± 0.99kJ/mol204.0084 ±
0.0048
591-50-4*0
Acetonyl CC(=O)[CH2]-19.01-31.72± 0.98kJ/mol57.0712 ±
0.0024
3122-07-4*0
Trifluoroethene FC(F)=CF-493.1-498.1± 1.6kJ/mol82.0245 ±
0.0016
359-11-5*0
Isocyanoethene C=C[N+]#[C-]285.14278.64± 0.94kJ/mol53.0627 ±
0.0024
14668-82-7*0
1-Isocyanoethylidene C[C][N+]#[C-]527.8523.1± 1.1kJ/mol53.0627 ±
0.0024
*498544-34-6*2
3-Methylene-1-cyclopropen-1-yl C=C1C=[C]1628.1625.5± 1.1kJ/mol51.0666 ±
0.0032
127611-24-9*0
Peroxyhypochlorous acid OOCl3.95-1.32± 0.95kJ/mol68.4594 ±
0.0011
67952-07-2*0
Fulvene C=C1C=CC=C1231.9215.8± 1.1kJ/mol78.1118 ±
0.0048
497-20-1*0
Oxosilylene [Si]=O-98.11-96.95± 0.65kJ/mol44.08490 ±
0.00042
10097-28-6*0
Silyloxy anion [SiH3][O-]-311.7-321.1± 1.6kJ/mol47.10927 ±
0.00047
43336-62-5*0
1-Propanamine CCCN-42.36-70.10± 0.42kJ/mol59.1103 ±
0.0025
107-10-8*0
Perchloryl O=Cl(=O)[O]191.82186.15± 0.62kJ/mol83.4509 ±
0.0013
13932-10-0*0
Dioxodiazoxane O=NON=O93.087.9± 1.3kJ/mol76.01168 ±
0.00091
122413-35-8*1
Nitric acid O[N+](=O)[O-]-206.64± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*800
Isodiazene [N]N307.54300.46± 0.63kJ/mol30.02936 ±
0.00020
28647-38-3*0
Oxoammoniumyl [NH+]=O1092.471089.54± 0.67kJ/mol31.01353 ±
0.00032
63559-87-5*0
Nitryl hydride [NH+](=O)[O-]-36.6-43.6± 1.1kJ/mol47.01348 ±
0.00061
90266-90-3*0
Peroxynitrous acid OON=O7.780.70± 0.41kJ/mol63.01288 ±
0.00091
14691-52-2*1
Carbon anion [C-]589.621594.768± 0.046kJ/mol12.01125 ±
0.00080
14337-00-9*0
Chlorate O=Cl(=O)[O-]-207.2-212.7± 1.6kJ/mol83.4514 ±
0.0013
14866-68-3*0
Ethylidyne [C]C508.53504.83± 0.80kJ/mol27.0452 ±
0.0016
67624-57-1*0
Ethynylium C#[C+]1687.591690.93± 0.16kJ/mol25.0288 ±
0.0016
16456-59-0*0
Methylamidogen anion C[NH-]145.35134.52± 0.65kJ/mol30.04975 ±
0.00085
54448-39-4*0
Iminomethylium [NH+]#C953.3949.3± 1.4kJ/mol28.03277 ±
0.00082
196216-36-1*0
Hydrogen fluoride F-321.05± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*818
Methylperoxy anion CO[O-]-89.81-99.96± 0.58kJ/mol47.0339 ±
0.0010
35683-44-4*0
Propylidyne CC[C]492.5482.8± 1.2kJ/mol41.0718 ±
0.0024
85056-54-8*1
Trioxidane OOO-72.74-81.23± 0.82kJ/mol50.01408 ±
0.00091
14699-99-1*2
Cyclopropylidene [C]1CC1474.87466.84± 0.85kJ/mol40.0639 ±
0.0024
2143-70-6*1
Propargylium [CH2+]C#C1193.421190.60± 0.33kJ/mol39.0554 ±
0.0024
21540-27-2*0
Cycloprop-1-enyl C1C=[C]1527.35522.96± 0.59kJ/mol39.0559 ±
0.0024
19528-44-0*0
Propargylenide C#C[CH-]436.9439.4± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*2
2-Propyn-1-ylium-1-ylidene C#C[C+]1598.11602.5± 1.3kJ/mol37.0395 ±
0.0024
75104-46-0*0
Chloric acid OCl(=O)=O2.2-4.9± 1.6kJ/mol84.4588 ±
0.0013
7790-93-4*0
Cyclopentene C1CC=CC159.4335.17± 0.47kJ/mol68.1170 ±
0.0040
142-29-0*0
n-Heptane CCCCCCC-145.58-187.46± 0.46kJ/mol100.2019 ±
0.0057
142-82-5*0
n-Octane CCCCCCCC-161.25-208.08± 0.54kJ/mol114.2285 ±
0.0065
111-65-9*0
Difluoride F[F-]-291.0-290.2± 1.5kJ/mol37.9973550 ±
0.0000010
12184-85-9*0
2-Hydrotrioxy [O][OH][O]299.6293.9± 1.2kJ/mol49.00614 ±
0.00090
*12500-78-6*0
Ethenol C=CO-108.73-119.44± 0.60kJ/mol44.0526 ±
0.0017
557-75-5*2
Vinoxy C=C[O]22.9716.13± 0.68kJ/mol43.0446 ±
0.0016
6912-06-7*0
Oxoethanide C[C-]=O-44.0-49.5± 1.3kJ/mol43.0452 ±
0.0016
78944-68-0*0
Oxirene C1=CO1273.18271.02± 0.92kJ/mol42.0367 ±
0.0016
157-18-6*2
Hydroxyformyl O[C]=O-174.31-177.34± 0.50kJ/mol45.0174 ±
0.0010
2564-86-5*2
Hydroxyformyl anion [C-](=O)O-319.53-322.11± 0.57kJ/mol45.0180 ±
0.0010
78944-70-4*2
Ethoxyethane CCOCC-222.99-250.41± 0.82kJ/mol74.1216 ±
0.0033
60-29-7*0
Acetone enol C=C(O)C-152.0-169.4± 1.1kJ/mol58.0791 ±
0.0025
29456-04-0*1
Acetate CC(=O)[O-]-496.4-505.5± 1.2kJ/mol59.0446 ±
0.0017
71-50-1*0
(Dimethylamino)methyl CN(C)[CH2]165.8142.8± 1.3kJ/mol58.1024 ±
0.0025
30208-47-0*0
Chloromethide [CH2-]Cl56.453.2± 2.0kJ/mol49.4798 ±
0.0012
60291-29-4*0
Hexachloroethane C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl-147.0-149.4± 1.3kJ/mol236.7376 ±
0.0056
67-72-1*0
cis-1,2-Dichloroethene C(\Cl)=C\Cl3.47-2.53± 0.54kJ/mol96.9427 ±
0.0024
156-59-2*0
Bromanylium [Br+]1257.7781251.715± 0.057kJ/mol79.90345 ±
0.00100
22541-56-6*0
Dichloroacetylene ClC#CCl230.13233.44± 0.94kJ/mol94.9268 ±
0.0024
7572-29-4*0
Difluoromethylene [C](F)F-193.89-193.42± 0.36kJ/mol50.00751 ±
0.00080
2154-59-8*0
Hexafluoroethane C(F)(F)(F)C(F)(F)F-1334.14-1342.44± 0.97kJ/mol138.0118 ±
0.0016
76-16-4*0
1,1-Difluoroethane CC(F)F-489.02-502.74± 0.55kJ/mol66.0500 ±
0.0016
75-37-6*0
2-Fluoroethanol FCCO-405.86-423.10± 0.99kJ/mol64.0589 ±
0.0017
371-62-0*0
Fluoronium [H][F+][H]774.10771.16± 0.88kJ/mol21.01373 ±
0.00014
12206-67-6*2
Benzylide c1ccc(cc1)[CH2-]141.92123.01± 0.42kJ/mol91.1310 ±
0.0056
18860-15-6*0
Ethylbenzene c1ccc(cc1)CC58.2029.73± 0.55kJ/mol106.1650 ±
0.0064
100-41-4*0
Phenylethene c1ccc(cc1)C=C169.68148.34± 0.55kJ/mol104.1491 ±
0.0064
100-42-5*0
Phenylacetylene c1ccc(cc1)C#C332.4317.2± 1.1kJ/mol102.1332 ±
0.0064
536-74-3*0
Nitrogen atom cation [N+]1872.9071875.689± 0.024kJ/mol14.006191 ±
0.000070
14158-23-7*0
Acetonate CC(=[O-])[CH2]-187.81-201.36± 0.98kJ/mol57.0717 ±
0.0024
24262-31-5*0
Methyl nitrite CON=O-55.52-66.19± 0.45kJ/mol61.0401 ±
0.0010
624-91-9*0
Propadienone C=C=C=O131.92130.29± 0.79kJ/mol54.0474 ±
0.0024
61244-93-7*0
1-Cyanoethylidene C[C]C#N475.6470.5± 1.1kJ/mol53.0627 ±
0.0024
498544-34-6*2
3-Imino-2-propen-1-ylidene [CH]C=C=N530.6525.8± 1.2kJ/mol53.0627 ±
0.0024
916765-05-4*11
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]600.6595.6± 1.2kJ/mol53.0627 ±
0.0024
123416-74-0*11
1-Cyanovinyl anion C=[C-]C#N224.3221.5± 1.3kJ/mol52.0553 ±
0.0024
36259-97-9*0
2-Cyanovinyl [CH]=CC#N448.0445.5± 1.1kJ/mol52.0547 ±
0.0024
189141-20-6*1
3-Buten-1-ynyl C=CC#[C]628.4626.2± 1.1kJ/mol51.0666 ±
0.0032
108179-98-2*0
Water dimer O.O-491.077-499.117± 0.051kJ/mol36.03056 ±
0.00066
25655-83-8*0
Methylsilane C[SiH3]-9.46-25.63± 0.96kJ/mol46.14384 ±
0.00095
992-94-9*0
Trimethylsiloxy C[Si](C)(C)[O]-187.4-210.4± 2.0kJ/mol89.1885 ±
0.0025
54572-10-0*0
1,5-Hexadiyne C#CCCC#C431.5421.0± 1.2kJ/mol78.1118 ±
0.0048
628-16-0*0
N-Methylethanamine CCNC-17.8-45.9± 1.1kJ/mol59.1103 ±
0.0025
624-78-2*0
Naphthalene c1ccc2ccccc2c1170.97147.49± 0.59kJ/mol128.1705 ±
0.0080
91-20-3*0
Trioxygen difluoride FOOOF112.3106.5± 1.1kJ/mol85.99501 ±
0.00090
16829-28-0*1
Carbon cation [C+]1797.8511803.449± 0.045kJ/mol12.01015 ±
0.00080
14067-05-1*0
Methyliumylidene [CH+]1619.7551623.099± 0.052kJ/mol13.01809 ±
0.00080
24361-82-8*0
Ethylidyne [C]C508.53504.83± 0.80kJ/mol27.0452 ±
0.0016
67624-57-1*1
Vinylidene anion [C-]=C363.99363.80± 0.50kJ/mol26.0378 ±
0.0016
66295-36-1*0
Ozonide O=[O-]=O-58.48-60.84± 0.21kJ/mol47.99875 ±
0.00090
12596-80-4*0
Bromochlorane BrCl21.88214.439± 0.060kJ/mol115.3567 ±
0.0013
13863-41-7*0
Oxidanylium [OH+]1293.1921293.221± 0.035kJ/mol17.00679 ±
0.00031
12259-29-9*0
Cyanomethanide [CH2-]C#N114.24111.41± 0.68kJ/mol40.0446 ±
0.0016
21438-99-3*0
Dioxaziridinyl [N]1OO1355.1352.6± 1.4kJ/mol46.00554 ±
0.00060
66252-29-7*0
Methanol cation [CH3+]O856.82846.50± 0.32kJ/mol32.04131 ±
0.00090
12538-91-9*0
Methyloxonium CO.[H+]588.5574.3± 1.2kJ/mol33.04925 ±
0.00092
17836-08-7*0
Hydroxymethylene [CH]O219.3216.4± 1.1kJ/mol30.02598 ±
0.00087
19710-56-6*3
Aquacarbon [C].O442.7441.1± 1.3kJ/mol30.02598 ±
0.00087
81434-73-3*1
Carbonic acid OC(=O)O-596.87-606.98± 0.83kJ/mol62.0248 ±
0.0012
463-79-6*2
Carbonic acid OC(=O)O-561.64-570.49± 0.97kJ/mol62.0248 ±
0.0012
463-79-6*3
Hydrogen carbonate O[C](=O)[O-]-720.5-726.9± 1.4kJ/mol61.0174 ±
0.0012
71-52-3*0
n-Propylium CC[CH2+]856.96838.68± 0.85kJ/mol43.0871 ±
0.0024
19252-52-9*0
Propylidene CC[CH]349.45335.76± 0.96kJ/mol42.0797 ±
0.0024
6700-78-3*1
Allyl anion C=C[CH2-]134.08123.07± 0.23kJ/mol41.0723 ±
0.0024
1724-46-5*0
Cyclopropyl C1C[CH]1303.4290.8± 1.3kJ/mol41.0718 ±
0.0024
2417-82-5*0
Propylidyne CC[C]624.6613.0± 1.3kJ/mol41.0718 ±
0.0024
85056-54-8*2
Cycloprop-2-enylium C1=C[CH+]11080.31075.2± 1.0kJ/mol39.0554 ±
0.0024
26810-74-2*0
1-Propynylide CC#[C-]264.35260.77± 0.70kJ/mol39.0565 ±
0.0024
36147-87-2*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]656.6653.2± 1.1kJ/mol39.0559 ±
0.0024
84654-90-0*11
sec-Butyl CC[CH]C90.9966.22± 0.87kJ/mol57.1143 ±
0.0033
2348-55-2*0
t-Butyl anion C[C-](C)C76.751.9± 1.3kJ/mol57.1148 ±
0.0033
65114-21-8*0
Hypochloroperoxoous acid, hydroxy ester OOOCl49.242.2± 1.9kJ/mol84.4588 ±
0.0013
928652-99-7*1
Trioxidanyl OO[O]25.3223.34± 0.13kJ/mol49.00614 ±
0.00090
12500-78-6*1
Oxirene C1=CO1387.8383.6± 1.4kJ/mol42.0367 ±
0.0016
157-18-6*11
Oxiranylidene C1[C]O1213.5209.2± 1.4kJ/mol42.0367 ±
0.0016
50983-85-2*2
Dioxirane C1OO19.431.76± 0.55kJ/mol46.0254 ±
0.0010
157-26-6*0
Hydroxyformyl anion [C-](=O)O-313.64-315.44± 0.58kJ/mol45.0180 ±
0.0010
78944-70-4*1
Ethoxyethene C=COCC-117.7-141.5± 1.5kJ/mol72.1057 ±
0.0033
109-92-2*2
Oxygen atom [O]436.666438.523± 0.0021kJ/mol15.99940 ±
0.00030
17778-80-2*2
Ethyl formate C(=O)OCC-375.3-394.0± 1.2kJ/mol74.0785 ±
0.0025
109-94-4*1
Methoxyoxomethyl CO[C]=O-152.6-160.7± 1.5kJ/mol59.0440 ±
0.0017
16481-04-2*1
Hydroxyde [OH-]-230.010± 0.028kJ/mol17.00789 ±
0.00031
14280-30-9*800
(Formyloxy)methyl O=CO[CH2]-151.8-160.0± 1.3kJ/mol59.0440 ±
0.0017
3122-12-1*1
Ethylene glycol OCCO-369.74-389.37± 0.40kJ/mol62.0678 ±
0.0018
107-21-1*0
Dioxoethyl C(=O)[C]=O-63.6-65.0± 1.3kJ/mol57.0281 ±
0.0017
702699-38-5*0
Oxalic acid C(=O)(C(=O)O)O-721.0-731.6± 1.2kJ/mol90.0349 ±
0.0020
144-62-7*0
(Methylamino)methyl cation CN[CH2+]729.27710.65± 0.97kJ/mol44.0752 ±
0.0017
*31277-24-4*0
Diazomethyl [CH]=[N]=[N]468.17465.62± 0.98kJ/mol41.03212 ±
0.00082
20813-32-5*0
Isocyanoamidogen [NH][N+]#[C-]490.3488.3± 1.5kJ/mol41.03212 ±
0.00082
947408-73-3*0
Iodine monobromide IBr49.71940.772± 0.067kJ/mol206.8085 ±
0.0010
7789-33-5*0
Dichloromethyl [CH](Cl)Cl92.2090.28± 0.88kJ/mol83.9240 ±
0.0020
3474-12-2*0
Chloromethyl [CH2]Cl118.46115.39± 0.87kJ/mol49.4793 ±
0.0012
6806-86-6*0
Methyl hypochlorite COCl-53.0-63.0± 1.4kJ/mol66.4866 ±
0.0013
593-78-2*0
1,2-Dichloroethane C(Cl)CCl-118.59-130.54± 0.54kJ/mol98.9586 ±
0.0024
107-06-2*0
Chlorofluoromethane C(F)Cl-256.1-263.3± 1.1kJ/mol68.4777 ±
0.0012
593-70-4*0
Difluoromethyliumyl [C+](F)F908.20908.63± 0.77kJ/mol50.00696 ±
0.00080
54250-40-7*0
Fluoromethyliumylidene [C+]F1122.931126.15± 0.45kJ/mol31.00855 ±
0.00080
33412-11-2*0
1,2-Difluoroacetylene FC#CF2.865.69± 0.64kJ/mol62.0182 ±
0.0016
689-99-6*0
Formyl chloride C(=O)Cl-179.99-183.20± 0.77kJ/mol64.4707 ±
0.0012
2565-30-2*0
Chloroformyl Cl[C]=O-21.92-20.53± 0.49kJ/mol63.4628 ±
0.0012
2602-42-8*0
o-Benzyne anion C1=CC#CC=[CH-]1413.73404.62± 0.96kJ/mol76.0965 ±
0.0048
100569-88-8*0
Cycloheptene C1CCC=CCC128.21-9.02± 0.75kJ/mol96.1702 ±
0.0057
628-92-2*0
Cycloheptatriene C1C=CC=CC=C1207.19183.77± 0.95kJ/mol92.1384 ±
0.0056
544-25-2*0
Fluorobenzene cation c1ccc(cc1)[F+]788.89773.87± 0.89kJ/mol96.1018 ±
0.0048
34468-25-2*0
Nitrosobenzene c1ccc(cc1)N=O215.9199.0± 1.2kJ/mol107.1100 ±
0.0048
586-96-9*0
Nitromethyl C=[N+](=O)[O-]139.0129.5± 1.2kJ/mol60.0321 ±
0.0010
16787-85-2*0
Nitroxyl O=[N+]([O-])[O]79.4174.15± 0.19kJ/mol62.00494 ±
0.00090
12033-49-7*0
2-Butanone CCC(=O)C-217.00-238.46± 0.79kJ/mol72.1057 ±
0.0033
78-93-3*0
Methylketene CC=C=O-54.7-64.2± 1.1kJ/mol56.0633 ±
0.0024
6004-44-0*0
Acrolein C=CC=O-55.3-65.7± 1.2kJ/mol56.0633 ±
0.0024
107-02-8*1
Formaldoxime C=NO30.519.9± 1.3kJ/mol45.04066 ±
0.00088
75-17-2*1
Dioxygen anion O=[O-]-43.36-42.72± 0.17kJ/mol31.99935 ±
0.00060
11062-77-4*0
1,3-Cyclobutadien-1-yl [C]1=CC=C1653.7649.2± 1.1kJ/mol51.0666 ±
0.0032
127611-22-7*0
Azanylium [NH3+]944.272937.317± 0.029kJ/mol17.03001 ±
0.00022
19496-55-0*0
Silylene [SiH2]272.5270.8± 1.2kJ/mol30.10138 ±
0.00033
13825-90-6*2
Trimethylsiloxide C[Si](C)(C)[O-]-485.9-509.8± 2.1kJ/mol89.1890 ±
0.0025
41866-81-3*0
1,3-Pentadiyne C#CC#CC417.96413.74± 0.84kJ/mol64.0853 ±
0.0040
4911-55-1*0
1,4-Hexadiyne CC#CCC#C424.6414.6± 1.3kJ/mol78.1118 ±
0.0048
10420-91-4*0
Biallenyl C=C=CC=C=C410.5398.8± 1.5kJ/mol78.1118 ±
0.0048
29776-96-3*1
1,2,3,4-Hexatetraene C=C=C=C=CC429.7420.0± 1.6kJ/mol78.1118 ±
0.0048
177856-38-1*0
(E)-1-Methylallyl C/C=C/[CH2]154.61137.30± 0.79kJ/mol55.0984 ±
0.0032
17787-86-9*0
Nitrosamine NN=O85.0076.12± 0.96kJ/mol46.02876 ±
0.00036
35576-91-1*0
Butadiynyl [C]#CC#C801.8808.4± 1.0kJ/mol49.0507 ±
0.0032
53561-65-2*0
Peroxynitric acid [N+](=O)([O-])OO-42.6-52.9± 1.3kJ/mol79.0123 ±
0.0012
26404-66-0*0
Nitrosyl chloride ClN=O54.46652.564± 0.068kJ/mol65.45884 ±
0.00095
2696-92-6*0
Hydrogen difluoride F.[F]-198.5-198.4± 1.2kJ/mol39.004746 ±
0.000070
12528-21-1*1
Carbon dioxide C(=O)=O49.850.6± 1.1kJ/mol44.00950 ±
0.00100
124-38-9*1
Bicyclo[1.1.0]buta-1,3-diene-2,4-diyl C12=[C]C2=[C]11047.191054.78± 0.69kJ/mol48.0428 ±
0.0032
12184-80-4*0
Methane cation [CH4+]1150.6731144.290± 0.062kJ/mol16.04191 ±
0.00085
20741-88-2*0
Oxygen atom [O]246.844249.229± 0.0021kJ/mol15.99940 ±
0.00030
17778-80-2*1
Oxoniumyl ion [H][O+][H]978.470975.567± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*0
Ethanium [CH3+][H][CH3]874.32858.08± 0.62kJ/mol31.0764 ±
0.0017
24669-33-8*0
Acetylene cation C#[CH+]1328.851328.18± 0.13kJ/mol26.0367 ±
0.0016
25641-79-6*0
1-Ethylium-1-ylidene [C+]C1329.61328.2± 1.2kJ/mol27.0447 ±
0.0016
78949-84-5*0
Ethylidyne anion [C-]C457.0452.9± 1.2kJ/mol27.0458 ±
0.0016
117768-70-4*0
Chloryl hydride [H][Cl](=O)=O197.7191.2± 1.6kJ/mol68.4594 ±
0.0011
174365-32-3*0
Bifluoride F.[F-]-481.8-480.6± 1.9kJ/mol39.005295 ±
0.000070
*18130-74-0*2
Isocyanomethyl [CH2][N+]#[C-]363.8361.3± 1.2kJ/mol40.0440 ±
0.0016
70971-59-4*0
Methyloxoniumylidene C[O+]1062.711054.89± 0.75kJ/mol31.03337 ±
0.00088
58157-09-8*0
Hydroxymethylene [CH]O131.10127.36± 0.29kJ/mol30.02598 ±
0.00087
19710-56-6*2
1H-Triazirin-1-yl [N]1N=[N]1585.9584.2± 2.0kJ/mol42.02022 ±
0.00021
912535-95-6*0
Hydroxymethylene cation [CH+]O971.9968.2± 1.4kJ/mol30.02543 ±
0.00087
135395-06-1*1
Chlorine difluoride [Cl](F)F-47.0-48.2± 1.4kJ/mol73.44951 ±
0.00090
24801-48-7*0
Isoformyl [C]O217.26217.64± 0.69kJ/mol29.01804 ±
0.00086
71080-92-7*0
Trioxidanylium OO[O+]1070.41064.1± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*1
1-Methylethylidene C[C]C326.8313.6± 1.2kJ/mol42.0797 ±
0.0024
40852-89-9*1
Allylium C=C[CH2+]964.58953.02± 0.42kJ/mol41.0713 ±
0.0024
1724-44-3*0
1-Propenyl CC=[CH]280.36269.53± 0.81kJ/mol41.0718 ±
0.0024
6067-68-1*1
Cyclopropynyl [CH]1C#C1710.97715.09± 0.85kJ/mol37.0400 ±
0.0024
119178-99-3*0
Hydrogen fluoride F-321.10± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*820
n-Butyl anion CCC[CH2-]105.981.0± 1.3kJ/mol57.1148 ±
0.0033
79431-01-9*0
sec-Butyl anion CC[CH-]C103.178.6± 1.3kJ/mol57.1148 ±
0.0033
79431-00-8*0
1-Hydroxyethylium C[CH+]O610.9596.4± 1.1kJ/mol45.0600 ±
0.0017
18682-96-7*2
Iodine cation [I+]1115.5491115.149± 0.0062kJ/mol126.903921 ±
0.000030
22541-93-1*0
Methoxymethyl CO[CH2]12.70.2± 1.4kJ/mol45.0605 ±
0.0017
16520-04-0*0
Vinyl alcohol cation C=C[OH+]778.7767.4± 1.3kJ/mol44.0520 ±
0.0017
57239-63-1*2
Oxiranyl C1[CH]O1172.5164.2± 1.3kJ/mol43.0446 ±
0.0016
31586-84-2*0
Oxiranylium C1[CH+]O1901.2893.2± 1.5kJ/mol43.0441 ±
0.0016
57789-76-1*2
Water anion [H][O-][H]31.329.8± 3.1kJ/mol18.01583 ±
0.00033
12259-30-2*100
C=O=C [C]=[O]=[C]653.0657.3± 1.5kJ/mol40.0208 ±
0.0016
*12071-23-7*1
C=O=C [C]=[O]=[C]721.9726.2± 1.6kJ/mol40.0208 ±
0.0016
*12071-23-7*2
Oxoethylidene [CH]C=O275.4272.6± 1.7kJ/mol42.0367 ±
0.0016
39920-84-8*2
Ethyl hydroperoxide CCOO-143.0-161.4± 1.2kJ/mol62.0678 ±
0.0018
3031-74-1*0
Formic acid cation [CH+](=O)O721.89714.81± 0.26kJ/mol46.0248 ±
0.0010
50614-05-6*1
Dioxidenium O[O+]1110.871107.98± 0.11kJ/mol33.00619 ±
0.00060
12207-52-2*0
Formyloxidanyl C(=O)[O]-122.09-125.44± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*2
Diazenyl [N]=N252.14249.22± 0.45kJ/mol29.02142 ±
0.00016
36882-13-0*0
(Formyloxy)methyl O=CO[CH2]-136.2-144.4± 1.3kJ/mol59.0440 ±
0.0017
3122-12-1*2
Carboxymethyl [CH2]C(=O)O-206.6-215.9± 1.2kJ/mol59.0440 ±
0.0017
2887-46-9*2
Dimethylamide C[N-]C122.4104.0± 1.7kJ/mol44.0763 ±
0.0017
34285-60-4*0
Hydrogen chloride Cl-165.757± 0.025kJ/mol36.46064 ±
0.00090
7647-01-0*828
1,1,2-Trichloroethane C(Cl)C(Cl)Cl-136.6-148.3± 1.4kJ/mol133.4033 ±
0.0031
79-00-5*0
1,1,1,2-Tetrachloroethane C(Cl)C(Cl)(Cl)Cl-144.5-153.1± 1.3kJ/mol167.8481 ±
0.0039
630-20-6*0
Pentachloroethyl C(Cl)(Cl)(Cl)[C](Cl)Cl27.025.1± 1.3kJ/mol201.2849 ±
0.0048
7094-17-9*0
Iodomethane CI-12.17± 0.19kJ/mol141.93899 ±
0.00083
74-88-4*590
Difluoromethylene [C](F)F43.3044.01± 0.36kJ/mol50.00751 ±
0.00080
2154-59-8*1
Bromide [Br-]-120.59± 0.15kJ/mol79.90455 ±
0.00100
24959-67-9*800
Ethyl iodide CCI-9.41-39.28± 0.49kJ/mol155.9656 ±
0.0016
75-03-6*500
cis-1,2-Difluoroethene F/C=C\F-302.90-309.66± 0.90kJ/mol64.0341 ±
0.0016
1630-77-9*0
Fluoroethynyl [C]#CF445.3449.8± 1.6kJ/mol43.0198 ±
0.0016
22533-50-2*0
Fluoro(fluorooxy)methylene F[C]OF-134.8-136.0± 1.3kJ/mol66.00691 ±
0.00085
479587-30-9*2
Dibromophosgene C(Br)(Br)=O-97.95-113.89± 0.37kJ/mol187.8181 ±
0.0022
593-95-3*0
Benzene c1ccccc150.7249.18± 0.22kJ/mol78.1118 ±
0.0048
71-43-2*500
o-Benzyne C1=CC#CC=C1468.12459.20± 0.87kJ/mol76.0960 ±
0.0048
462-80-6*0
m-Benzyne c1[c]ccc[c]1527.0518.5± 1.2kJ/mol76.0960 ±
0.0048
1828-89-3*2
p-Benzyne c1c[c]cc[c]1587.0577.5± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*2
Cycloheptane C1CCCCCC1-72.73-118.22± 0.53kJ/mol98.1861 ±
0.0057
291-64-5*0
Benzoyl fluoride c1ccc(cc1)C(=O)F-288.0-304.4± 1.5kJ/mol124.1124 ±
0.0056
455-32-3*0
Fluoride [F-]-334.50± 0.16kJ/mol18.99895178 ±
0.00000050
16984-48-8*800
Hydroxyimidogen [N]O217.85214.97± 0.77kJ/mol31.01408 ±
0.00032
35337-59-8*0
Dinitrogen pentoxide O=[N+]([O-])O[N+](=O)[O-]24.4514.88± 0.35kJ/mol108.0105 ±
0.0015
10102-03-1*0
2-Cyclopropen-1-one O=C1C=C1163.7159.8± 1.2kJ/mol54.0474 ±
0.0024
2961-80-0*0
Iodide [I-]-56.823± 0.090kJ/mol126.905019 ±
0.000030
20461-54-5*800
Cyanovinylidene [C]=CC#N581.7584.2± 1.2kJ/mol51.0468 ±
0.0024
70277-81-5*0
Isocyanovinylidene [C]=C[N+]#[C-]697.0700.3± 1.4kJ/mol51.0468 ±
0.0024
737788-76-0*0
Cyanoacetylide [C-]#CC#N300.3305.6± 1.2kJ/mol50.0394 ±
0.0024
12373-53-4*0
Isocyanoethene C=C[N+]#[C-]285.14278.64± 0.94kJ/mol53.0627 ±
0.0024
14668-82-7*1
1-Cyanoethylidene C[C]C#N437.5433.7± 1.5kJ/mol53.0627 ±
0.0024
498544-34-6*1
Isocyanomethylene [CH][N+]#[C-]582.3583.6± 1.7kJ/mol39.0361 ±
0.0016
78694-65-2*1
2-Methyl-2-cyclopropen-1-ylidene CC1=C[C]1447.9441.7± 1.2kJ/mol52.0746 ±
0.0032
185841-59-2*2
1,2,3-Butatrien-1-ylium C=C=C=[CH+]1425.71426.0± 1.3kJ/mol51.0661 ±
0.0032
81932-79-8*1
1,2,3-Butatrien-1-yl anion C=C=C=[CH-]388.5386.6± 1.3kJ/mol51.0672 ±
0.0032
102275-54-7*0
But-1-en-3-yn-1-ide C#CC=[CH-]419.7418.5± 1.3kJ/mol51.0672 ±
0.0032
119611-65-3*2
Azide [N]N=[N-]193.56190.05± 0.91kJ/mol42.02077 ±
0.00021
14343-69-2*0
Propargyl chloride C#CCCl186.5180.6± 1.3kJ/mol74.5086 ±
0.0026
624-65-7*0
Dioxosilane O=[Si]=O-277.8-279.1± 2.0kJ/mol60.08430 ±
0.00067
7631-86-9*0
Silylene [SiH2]362.3360.7± 1.2kJ/mol30.10138 ±
0.00033
13825-90-6*1
Benzvalene C1=CC2C3C1C23404.3386.5± 1.2kJ/mol78.1118 ±
0.0048
659-85-8*0
Methylidyne [CH]592.825596.159± 0.097kJ/mol13.01864 ±
0.00080
3315-37-5*1
Hydrogen difluoride cation [F+]F[H]1174.31171.3± 1.5kJ/mol39.004198 ±
0.000070
*126950-54-7*0
Methylammonium C[NH3+]628.5609.6± 1.4kJ/mol32.06453 ±
0.00091
17000-00-9*0
Aminomethylene [CH][NH2]245.9238.2± 1.5kJ/mol29.04126 ±
0.00083
35430-17-2*0
Methylimidogen C[N]323.1315.3± 1.1kJ/mol29.04126 ±
0.00083
27770-42-9*0
Methyleneamidogen anion C=[N-]192.77189.01± 0.91kJ/mol28.03387 ±
0.00082
28892-56-0*0
(Z)-Iminomethyl [CH]=N294.50291.01± 0.90kJ/mol28.03332 ±
0.00082
54980-11-9*0
Aminomethylidyne [C]N371.9368.4± 1.1kJ/mol28.03332 ±
0.00082
84654-89-7*0
Bifluoride F.[F-]-68.0-67.6± 1.6kJ/mol39.005295 ±
0.000070
*18130-74-0*1
Methyleneoxonium [CH2].O152.46144.14± 0.49kJ/mol32.04186 ±
0.00090
177788-17-9*0
Peroxynitrous acid OON=O-0.18-7.23± 0.53kJ/mol63.01288 ±
0.00091
14691-52-2*2
Hydroxymethylene anion [CH-]O147.1144.1± 1.6kJ/mol30.02653 ±
0.00087
207914-87-2*1
Hydroxymethyliumylidene [C+]O986.02987.66± 0.83kJ/mol29.01749 ±
0.00086
60528-75-8*0
Isoformyl anion [C][O].[H-]55.758.4± 1.8kJ/mol29.01859 ±
0.00086
81747-63-9*1
Peroxyformic acid C(=O)OO-265.3-273.2± 1.6kJ/mol62.0248 ±
0.0012
107-32-4*2
Hydroxyoxomethoxy O[C](=O)[O]-358.8-364.9± 1.5kJ/mol61.0168 ±
0.0012
38330-85-7*0
Hydroperoxycarbonyl OO[C]=O-72.9-76.7± 1.7kJ/mol61.0168 ±
0.0012
153751-35-0*0
Chlorine difluoride cation [Cl+](F)F998.9996.7± 1.7kJ/mol73.44896 ±
0.00090
32629-46-2*0
Propan-1-yl-3-ylidene [CH2]C[CH]554.3545.6± 1.3kJ/mol41.0718 ±
0.0024
*50457-59-5*2
1-Propenylidene CC=[C]392.3387.9± 1.1kJ/mol40.0639 ±
0.0024
70277-78-0*1
Oxofluoronium O=[F+]1342.651342.60± 0.81kJ/mol34.99725 ±
0.00030
12763-67-6*0
1-Propynyl CC#[C]528.30526.12± 0.70kJ/mol39.0559 ±
0.0024
89342-91-6*0
Cycloprop-2-enyl C1=C[CH]1490.19485.64± 0.58kJ/mol39.0559 ±
0.0024
28933-84-8*0
2-Propen-1-yl-3-ylidene [CH2]C=[C]556.55554.28± 0.89kJ/mol39.0559 ±
0.0024
202744-74-9*0
(E)-Diazene cation [H]/N=[N+]/[H]1132.491125.55± 0.64kJ/mol30.02881 ±
0.00020
59952-06-6*0
Cyclopropenylidene C1=C=C1497.03496.06± 0.46kJ/mol38.0480 ±
0.0024
16165-40-5*0
2-Propynylidyne anion C#C[C-]540.03544.80± 0.83kJ/mol37.0406 ±
0.0024
82893-67-2*0
t-Butylium C[C+](C)C733.82710.54± 0.98kJ/mol57.1137 ±
0.0033
14804-25-2*0
(Z)-Diazene [H]/N=N\[H]228.83221.69± 0.63kJ/mol30.02936 ±
0.00020
15626-42-3*0
iso-Butyl CC(C)[CH2]96.9772.98± 0.92kJ/mol57.1143 ±
0.0033
4630-45-9*0
Deuterium atom [2H]219.804221.717± 0.000kJ/mol2.01410177800 ±
0.00000000040
16873-17-9*0
Methylcyclopropane CC1CC147.824.5± 1.3kJ/mol56.1063 ±
0.0032
594-11-6*0
n-Nonane CCCCCCCCC-176.46-228.25± 0.51kJ/mol128.2551 ±
0.0073
111-84-2*0
Ethanol CCO-269.74-277.51± 0.22kJ/mol46.0684 ±
0.0017
64-17-5*500
Peroxychlorous acid O=ClOO96.290.2± 2.1kJ/mol84.4588 ±
0.0013
177778-92-6*1
Dioxyamidogen [NH-][O+]=O240.4233.8± 1.8kJ/mol47.01348 ±
0.00061
71843-95-3*2
Trioxidaniumyl O[O+]O925.5916.2± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*2
2-Hydroxyethyl [CH2]CO-5.5-18.0± 1.3kJ/mol45.0605 ±
0.0017
4422-54-2*3
Ethoxy CC[O]1.15-12.28± 0.45kJ/mol45.0605 ±
0.0017
2154-50-9*0
Oxygen cation monohydrate [H]O[H][O+]1153.31147.8± 3.3kJ/mol34.01413 ±
0.00062
*31748-17-1*0
Vinyl alcohol cation C=C[OH+]786.76775.53± 0.85kJ/mol44.0520 ±
0.0017
57239-63-1*1
Vinoxy cation [CH2+]C=O1020.21013.1± 1.5kJ/mol43.0441 ±
0.0016
*35731-40-9*1
Vinoxide [CH2-]C=O-153.03-160.09± 0.68kJ/mol43.0452 ±
0.0016
35731-40-9*0
2-Hydroxyethenyl [CH]=CO138.01131.26± 0.92kJ/mol43.0446 ±
0.0016
108665-16-3*21
Oxiranyl anion C1[CH-]O1121.2113.2± 1.5kJ/mol43.0452 ±
0.0016
72722-59-9*2
Acetic acid CC(=O)O-485.16± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*800
Ketene C=C=O-45.35-48.47± 0.11kJ/mol42.0367 ±
0.0016
463-51-4*2
COC vdW [C]=O.[C]589.7598.5± 1.5kJ/mol40.0208 ±
0.0016
*12071-24-8*1
Oxirene C1=CO1389.9385.7± 1.4kJ/mol42.0367 ±
0.0016
157-18-6*12
Dioxiranylidene [C]1OO1190.3191.1± 1.4kJ/mol44.00950 ±
0.00100
138832-57-2*0
Xenon cation [Xe+]1170.3541170.354± 0.0062kJ/mol131.2895 ±
0.0200
24203-25-6*0
Formyloxoniumylidene C(=O)[O+]1017.31013.9± 1.4kJ/mol45.0169 ±
0.0010
54375-27-8*0
Dioxymethylene [CH]O[O]364.0361.7± 2.4kJ/mol45.0174 ±
0.0010
438586-67-5*1
2-Propanol CC(O)C-249.37-273.46± 0.36kJ/mol60.0950 ±
0.0025
67-63-0*0
Perchloric acid OCl(=O)(=O)=O13.21.8± 1.8kJ/mol100.4582 ±
0.0015
7601-90-3*0
Cyanate N#C[O-]-221.19-221.41± 0.53kJ/mol42.01739 ±
0.00086
661-20-1*0
Oxazirinyl [C]1=NO1450.1450.9± 1.5kJ/mol42.01684 ±
0.00086
228850-18-8*0
Hydrogen fluoride F-321.14± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*821
Propionic acid CCC(=O)O-436.35-454.25± 0.60kJ/mol74.0785 ±
0.0025
79-09-4*1
2-Methoxy-2-oxoethyl [CH2]C(=O)OC-203.4-218.6± 1.6kJ/mol73.0706 ±
0.0025
54668-31-4*1
(Acetyloxy)methyl CC(=O)O[CH2]-200.6-214.3± 1.6kJ/mol73.0706 ±
0.0025
2887-49-2*1
Chlorine fluoride cation [Cl+]F1165.521165.71± 0.49kJ/mol54.45055 ±
0.00090
12432-44-9*0
Dimethylmethyleneammonium C[N+](C)[CH2]696.8671.7± 1.3kJ/mol58.1018 ±
0.0025
28149-27-1*0
Trichloromethide [C-](Cl)(Cl)Cl-124.8-124.3± 2.0kJ/mol118.3693 ±
0.0028
14478-07-0*0
2-Hydrotrioxy cation [O][OH][O+]1298.21291.5± 1.5kJ/mol49.00559 ±
0.00090
*74241-49-9*0
Hydroxyaminiumyl [N+]O1161.11158.2± 1.4kJ/mol31.01353 ±
0.00032
63559-88-6*0
1,1,2,2-Tetrachloroethane C(Cl)(Cl)C(Cl)Cl-146.8-156.2± 1.5kJ/mol167.8481 ±
0.0039
79-34-5*0
1,1,2,2-Tetrachloroethane C(Cl)(Cl)C(Cl)Cl-173.0-202.0± 1.5kJ/mol167.8481 ±
0.0039
79-34-5*500
Pentachloroethane C(C(Cl)(Cl)Cl)(Cl)Cl-202.9± 2.5kJ/mol202.2928 ±
0.0048
76-01-7*500
Trichloroethene C(Cl)=C(Cl)Cl-49.2± 1.5kJ/mol131.3874 ±
0.0031
79-01-6*590
Tetrachloroethene C(=C(Cl)Cl)(Cl)Cl-62.9± 1.1kJ/mol165.8322 ±
0.0039
127-18-4*500
Oxygen anion monohydrate [H]O[H][O-]-239.0-244.3± 3.0kJ/mol34.01523 ±
0.00062
31748-17-1*0
Nitrosodioxaziridine O=NN1OO1413.7407.6± 1.8kJ/mol76.01168 ±
0.00091
132871-99-9*1
Trichloroethene C(Cl)=C(Cl)Cl-11.3-14.6± 1.5kJ/mol131.3874 ±
0.0031
79-01-6*0
Bromodichloromethane C(Cl)(Cl)Br-37.4-49.1± 1.2kJ/mol163.8280 ±
0.0022
75-27-4*0
Difluorodibromomethane C(F)(F)(Br)Br-364.0-382.0± 1.3kJ/mol209.8155 ±
0.0022
75-61-6*0
Dichlorodibromomethane C(Cl)(Cl)(Br)Br21.05.1± 1.3kJ/mol242.7241 ±
0.0028
594-18-3*0
Difluorobromomethane C(F)(F)Br-411.15-424.34± 0.46kJ/mol130.9194 ±
0.0013
1511-62-2*0
2-Hydrotrioxy anion [O][OH][O-]27.521.8± 1.4kJ/mol49.00669 ±
0.00090
*89965-38-8*0
1,2-Difluoroethane C(F)CF-434.42-447.84± 0.81kJ/mol66.0500 ±
0.0016
624-72-6*0
Fluoro(fluorooxy)methylene F[C]OF-37.5-39.1± 1.4kJ/mol66.00691 ±
0.00085
479587-30-9*1
Dinitrogen tetraoxide O=N(=O)N(=O)=O20.1810.89± 0.14kJ/mol92.0111 ±
0.0012
10544-72-6*0
Chlorine chlorite ClO[Cl]=O168.6166.2± 1.3kJ/mol102.9042 ±
0.0019
105206-44-8*3
Phenylium c1cccc[c+]11250.81237.7± 1.6kJ/mol77.1034 ±
0.0048
17333-73-2*1
Hydroxyamidogen [NH]O123.4116.8± 1.7kJ/mol32.02202 ±
0.00034
13940-32-4*2
Hydroxyaminylium [NH+]O1019.51012.4± 2.5kJ/mol32.02147 ±
0.00034
66097-71-0*1
Chlorobenzene cation c1ccc(cc1)[Cl+]942.48928.56± 0.61kJ/mol112.5561 ±
0.0049
55450-32-3*0
Chlorobenzene c1ccc(cc1)Cl11.24± 0.59kJ/mol112.5566 ±
0.0049
108-90-7*500
m-Chlorophenyl c1(Cl)c[c]ccc1320.1309.4± 1.6kJ/mol111.5487 ±
0.0049
3474-40-6*0
p-Chlorophenyl c1(Cl)cc[c]cc1323.0312.2± 1.6kJ/mol111.5487 ±
0.0049
2396-00-1*0
o-Chlorophenyl c1(Cl)[c]cccc1327.4316.6± 1.6kJ/mol111.5487 ±
0.0049
3474-42-8*0
Bromobenzene cation c1ccc(cc1)[Br+]994.8973.3± 1.3kJ/mol157.0074 ±
0.0049
55450-33-4*0
Iodobenzene c1ccc(cc1)I112.9113.0± 1.1kJ/mol204.0084 ±
0.0048
591-50-4*500
Nitrobenzene c1ccc(cc1)[N+](=O)[O-]81.661.6± 1.4kJ/mol123.1094 ±
0.0049
98-95-3*0
1,3-Butadien-2-ol C=C(O)C=C-53.8-70.8± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*11
Formaldonitrone [CH2]N[O]78.467.1± 1.4kJ/mol45.04066 ±
0.00088
67353-84-8*0
Oxywater [OH2][O]64.858.3± 1.3kJ/mol34.01468 ±
0.00062
171363-09-0*0
2-Cyclopropen-1-imine C1=CC1=N401.8394.1± 1.4kJ/mol53.0627 ±
0.0024
31589-17-0*0
1-Isocyanovinyl C=[C][N+]#[C-]519.1517.3± 1.4kJ/mol52.0547 ±
0.0024
321850-14-0*0
Chlorosyl hydride [H]Cl[O]141.9139.0± 1.7kJ/mol52.46004 ±
0.00095
71572-35-5*0
Aquachlorine cation [Cl+]O([H])[H]821.8815.0± 1.7kJ/mol53.46743 ±
0.00096
142599-65-3*0
Triiodide I[I-]I-51.44± 0.80kJ/mol380.713959 ±
0.000090
14900-04-0*800
Vinylvinylidene C=CC=[C]494.1488.7± 1.8kJ/mol52.0746 ±
0.0032
148759-16-4*2
But-1-en-3-yn-1-ide C#CC=[CH-]422.3421.0± 1.3kJ/mol51.0672 ±
0.0032
119611-65-3*1
Tetrahedryl anion [C-]12C3C1C23634.6630.8± 1.8kJ/mol51.0672 ±
0.0032
138805-00-2*0
Silicon carbide [Si]=[C]740.5745.5± 2.4kJ/mol40.09620 ±
0.00085
409-21-2*0
Silicon carbide [Si]=[C]-70.5-71.5± 1.5kJ/mol40.09620 ±
0.00085
409-21-2*501
Tetrafluorosilane [Si](F)(F)(F)F-1608.90-1614.41± 0.63kJ/mol104.07911 ±
0.00030
7783-61-1*0
Disilane [SiH3][SiH3]92.376.3± 1.4kJ/mol62.21864 ±
0.00073
1590-87-0*0
Dimethylsilanone C[Si](=O)C-237.1-252.5± 2.3kJ/mol74.1539 ±
0.0017
47956-45-6*0
Dimethylsilane C[SiH2]C-66.0-87.5± 1.2kJ/mol60.1704 ±
0.0017
1111-74-6*0
Fluorohydrochlorine cation FCl[H+]975.3972.3± 2.0kJ/mol55.45849 ±
0.00090
70110-64-4*0
Triprismane C12C3C1C4C2C34575.9556.5± 1.3kJ/mol78.1118 ±
0.0048
650-42-0*0
Dihydrogen fluoride anion F.[H-]133.2131.9± 1.6kJ/mol21.01483 ±
0.00014
117339-92-1*1
Propargylallene C=C=CCC#C431.2419.6± 1.4kJ/mol78.1118 ±
0.0048
33142-15-3*3
Phenanthrene c1ccc2c(c1)ccc3c2cccc3231.79202.98± 0.82kJ/mol178.2292 ±
0.0112
85-01-8*0
Diacetylide [C-]#CC#C460.9465.9± 1.0kJ/mol49.0513 ±
0.0032
59012-21-4*0
Chlorohydrofluorine cation ClF[H+]1000.8998.1± 2.1kJ/mol55.45849 ±
0.00090
70110-63-3*0
Cyanogen iodide anion IC#[N-]86.588.9± 8.1kJ/mol152.92246 ±
0.00080
1356929-44-6*0
Ammonium nitrate [NH4+].O=[N+]([O-])[O-]-350.29-365.26± 0.18kJ/mol80.04344 ±
0.00095
6484-52-2*500
Methanol CO-235.27-238.61± 0.15kJ/mol32.04186 ±
0.00090
67-56-1*500
Formaldehyde cation C=[O+]944.866941.245± 0.097kJ/mol30.02543 ±
0.00087
54288-05-0*0
Peroxychlorite O=ClO[O-]-34.3-34.3± 2.0kJ/mol83.4514 ±
0.0013
852472-63-0*0
Isoformyl anion [C][O].[H-]267.4268.0± 1.6kJ/mol29.01859 ±
0.00086
81747-63-9*2
Fluorochlorate [Cl-]F-256.03-255.42± 0.81kJ/mol54.45165 ±
0.00090
12272-56-9*0
Bromo hypobromite BrOBr120.5104.0± 1.2kJ/mol175.8074 ±
0.0020
21308-80-5*0
Trihydrogen dioxide anion [OH][H][OH-]-487.5-495.8± 1.1kJ/mol35.02317 ±
0.00064
12501-19-8*0
Hydrogen fluoride F-321.06± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*902
Allene cation C=C=[CH2+]1132.061124.91± 0.24kJ/mol40.0633 ±
0.0024
65812-77-3*0
Peroxyimidogen [N]O[O]405.4403.4± 1.9kJ/mol46.00554 ±
0.00060
*60488-31-5*0
Ethylene cation C=[CH2+]1075.151067.94± 0.12kJ/mol28.0526 ±
0.0016
34470-02-5*0
2-Propenylidene [CH]C=C417.4409.8± 1.5kJ/mol40.0639 ±
0.0024
19527-08-3*11
2-Propenylidene [CH]C=C452.56445.43± 0.91kJ/mol40.0639 ±
0.0024
19527-08-3*2
Cycloprop-1-enylide C1C=[C-]1373.5369.1± 1.8kJ/mol39.0565 ±
0.0024
80251-77-0*0
Trifluoromethide [C-](F)(F)F-637.6-639.4± 1.8kJ/mol69.00646 ±
0.00080
54128-17-5*0
2-Cyclopropen-1-ylium-1-yl C1=[C+]=C11382.01380.9± 1.1kJ/mol38.0474 ±
0.0024
85398-75-0*0
Propynylidene [CH]=C=[CH]597.6599.4± 1.3kJ/mol38.0480 ±
0.0024
67152-18-5*3
Propenediylidene [CH][CH][C]796.2797.3± 1.4kJ/mol38.0480 ±
0.0024
60731-11-5*0
n-Butylium CCC[CH2+]827.5803.2± 1.2kJ/mol57.1137 ±
0.0033
25453-90-1*0
Diiodide I[I-]-178.13-180.72± 0.48kJ/mol253.809489 ±
0.000060
12190-71-5*0
Oxadiazirene N1=NO1351.7349.9± 1.7kJ/mol44.01288 ±
0.00033
227934-45-4*0
iso-Hexane CCCC(C)C-134.63-173.88± 0.84kJ/mol86.1754 ±
0.0049
107-83-5*0
NON [N]O[N]545.5542.6± 1.7kJ/mol44.01288 ±
0.00033
227934-46-5*0
n-Decane CCCCCCCCCC-192.42-249.17± 0.81kJ/mol142.2817 ±
0.0081
124-18-5*0
Ethyloxoniumyl CC[OH+]783.3766.3± 1.7kJ/mol46.0679 ±
0.0017
34480-55-2*0
1-Hydroxyethylium C[CH+]O608.75594.32± 0.39kJ/mol45.0600 ±
0.0017
18682-96-7*0
2-Hydroxyethylium [CH2+]CO1019.11006.3± 1.5kJ/mol45.0600 ±
0.0017
38607-31-7*3
Ethyloxoniumylidene CC[O+]988.6974.9± 1.5kJ/mol45.0600 ±
0.0017
54387-07-4*0
Acetaldehyde cation CC=[O+]831.92821.95± 0.26kJ/mol44.0520 ±
0.0017
36505-03-0*0
Azidonitrene [N]=NN=[N]692.1687.5± 1.4kJ/mol56.02696 ±
0.00028
147363-92-6*2
Oxiranylium C1[CH+]O11233.51226.4± 1.7kJ/mol43.0441 ±
0.0016
57789-76-1*1
Oxiranyl anion C1[CH-]O1140.9134.9± 1.6kJ/mol43.0452 ±
0.0016
72722-59-9*1
Iodine [I]107.157106.757± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*1
Ketenyl anion [CH-]=C=O-48.47-47.54± 0.82kJ/mol41.0293 ±
0.0016
64066-01-9*0
Dicarbon monoxide anion [C-]=C=O154.18157.82± 0.83kJ/mol40.0213 ±
0.0016
87191-88-6*0
Dicarbon monoxide [C]=C=O440.22444.55± 0.83kJ/mol40.0208 ±
0.0016
12071-23-7*2
COC vdW [C]=O.[C]726.3734.6± 1.7kJ/mol40.0208 ±
0.0016
*12071-24-8*2
C=O-C cation [C]=[O+][C]1585.81592.9± 2.7kJ/mol40.0203 ±
0.0016
83483-98-1*1
C=O=C anion [C-]=[O+]=[C-]550.3554.1± 1.7kJ/mol40.0213 ±
0.0016
*87191-88-6*0
Oxirene cation C1=C[O+]11106.31102.6± 1.9kJ/mol42.0361 ±
0.0016
94664-69-4*0
Ethynol C#CO400.0397.6± 1.9kJ/mol42.0367 ±
0.0016
32038-79-2*11
Oxoethylidene [CH]C=O265.9262.6± 1.6kJ/mol42.0367 ±
0.0016
39920-84-8*11
Vinylidene [C]=C610.41610.11± 0.50kJ/mol26.0373 ±
0.0016
2143-69-3*1
Hydroperoxymethyl [CH2]OO72.965.6± 1.4kJ/mol47.0333 ±
0.0010
74087-87-9*0
Formic acid cation [CH+](=O)O723.8716.7± 1.2kJ/mol46.0248 ±
0.0010
50614-05-6*2
Formic acid anion [CH-](=O)O-256.2-262.4± 1.8kJ/mol46.0259 ±
0.0010
19066-82-1*1
Dioxymethylidyne [C]O[O]299.8301.1± 1.7kJ/mol44.00950 ±
0.00100
791121-04-5*0
Isocyanic acid cation [NH+]=C=O1002.981000.31± 0.49kJ/mol43.02423 ±
0.00086
444010-28-0*0
Fulminic acid cation C#[N+][O]1215.61212.9± 1.3kJ/mol43.02423 ±
0.00086
114766-65-3*0
Acetic acid CC(=O)O-484.89± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*840
Triiodide I[I-]I-254.3-257.5± 3.4kJ/mol380.713959 ±
0.000090
14900-04-0*0
Dibromide Br[Br-]-199.2-213.3± 2.0kJ/mol159.8085 ±
0.0020
12595-70-9*0
Acetyl chloride CC(=O)Cl-272.13± 0.33kJ/mol78.4973 ±
0.0019
75-36-5*500
Methyl formate COC=O-388.50± 0.86kJ/mol60.0520 ±
0.0017
107-31-3*500
Ethyl formate C(=O)OCC-355.5-374.6± 1.4kJ/mol74.0785 ±
0.0025
109-94-4*2
Diazenide N#N.[H-]175.6176.7± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*100
2-Methoxy-2-oxoethyl [CH2]C(=O)OC-173.3-188.5± 1.8kJ/mol73.0706 ±
0.0025
54668-31-4*2
(Acetyloxy)methyl CC(=O)O[CH2]-174.3-187.3± 1.7kJ/mol73.0706 ±
0.0025
2887-49-2*2
Hydroxyoxoethenyl O[C]=C=O24.322.5± 1.8kJ/mol57.0281 ±
0.0017
702699-39-6*0
Nitronium O=[N+]=O961.80958.24± 0.20kJ/mol46.00499 ±
0.00060
14522-82-8*0
Isocyanomethylidyne [C][N+]#[C-]672.2676.5± 1.7kJ/mol38.0281 ±
0.0016
53590-27-5*0
Cyanomethylidyne [C]C#N684.7689.1± 2.1kJ/mol38.0281 ±
0.0016
4120-02-9*0
Tetrachloromethane C(Cl)(Cl)(Cl)Cl-108.69-128.11± 0.43kJ/mol153.8215 ±
0.0037
56-23-5*500
Chloride [Cl-]-166.992± 0.023kJ/mol35.45325 ±
0.00090
16887-00-6*800
Dichloromethylene anion [C-](Cl)Cl75.6377.91± 0.77kJ/mol82.9166 ±
0.0020
118364-73-1*0
Dichloromethylium [CH+](Cl)Cl894.7891.5± 1.2kJ/mol83.9235 ±
0.0020
56932-33-3*0
Dichloromethide [CH-](Cl)Cl-40.9-42.6± 2.0kJ/mol83.9246 ±
0.0020
32180-91-9*0
Chloromethylium [CH2+]Cl962.4958.5± 1.2kJ/mol49.4787 ±
0.0012
59000-00-9*0
Chloromethylene [CH]Cl346.15346.45± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*1
1,2-Dichloroethane C(Cl)CCl-165.75± 0.56kJ/mol98.9586 ±
0.0024
107-06-2*500
1,1-Dichloroethane CC(Cl)Cl-163.87± 0.48kJ/mol98.9586 ±
0.0024
75-34-3*500
Chlorosyl chloride ClCl[O]134.5133.2± 1.4kJ/mol86.9048 ±
0.0018
86825-56-1*0
Hydrogen difluoride F.[F]-187.4-187.1± 1.6kJ/mol39.004746 ±
0.000070
12528-21-1*2
Pentachloroethane C(C(Cl)(Cl)Cl)(Cl)Cl-151.3-157.2± 1.9kJ/mol202.2928 ±
0.0048
76-01-7*0
Carbide [C]=[C-]504.74511.32± 0.39kJ/mol24.0219 ±
0.0016
12595-78-7*0
Chloroform C(Cl)(Cl)Cl-133.47± 0.51kJ/mol119.3767 ±
0.0028
67-66-3*590
Chlorodibromomethane C(Cl)(Br)Br18.80.0± 3.4kJ/mol208.2793 ±
0.0023
124-48-1*0
Tribromofluoromethane C(Br)(Br)(Br)F-105.5-129.5± 1.5kJ/mol270.7211 ±
0.0031
353-54-8*0
Tribromochloromethane C(Br)(Br)(Br)Cl77.654.8± 1.5kJ/mol287.1754 ±
0.0032
594-15-0*0
Dioxygenyl ion monohydrate O.O=[O+]828.5821.4± 2.1kJ/mol50.01353 ±
0.00091
11083-61-7*0
Ammonia N-80.885± 0.053kJ/mol17.03056 ±
0.00022
7664-41-7*1000
Bromochloromethane C(Cl)Br-28.1-42.2± 1.3kJ/mol129.3833 ±
0.0016
74-97-5*0
Fluoromethylene [CH]F148.39148.67± 0.43kJ/mol32.01704 ±
0.00080
13453-52-6*0
Iminomethide [CH-]=N237.3233.5± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*1
Ethyl iodide CCI8.70-7.18± 0.49kJ/mol155.9656 ±
0.0016
75-03-6*0
1,2-Dibromoacetylene BrC#CBr333.5322.6± 2.3kJ/mol183.8294 ±
0.0026
624-61-3*0
Fluoro(fluorooxy)methylene F[C]OF-97.5-95.6± 1.6kJ/mol66.00691 ±
0.00085
479587-30-9*101
Fluorooxomethylium F[C+]=O724.9724.6± 1.2kJ/mol47.00795 ±
0.00085
38264-00-5*0
Fluoroisoformyl [C]OF-37.8-32.4± 1.6kJ/mol47.00850 ±
0.00085
*1871-24-5*0
Benzene cation c1ccc(cc1)[H+]992.51976.05± 0.22kJ/mol78.1113 ±
0.0048
34504-50-2*0
2-Cyclopropyn-1-ylidene C1=C=C=1898.9905.8± 1.6kJ/mol36.0321 ±
0.0024
102508-15-6*1
2-Cyclopropyn-1-ylium-1-yl [C+]1=C=C=11944.81952.7± 1.9kJ/mol36.0316 ±
0.0024
154702-35-9*0
Fluoronium [H][F+][H]774.10771.16± 0.88kJ/mol21.01373 ±
0.00014
12206-67-6*0
1-Chloro ozone ClOO[O]226.3223.1± 2.3kJ/mol83.4509 ±
0.0013
141801-66-3*101
m-Chlorophenide c1(Cl)c[c-]ccc1172.3162.1± 1.6kJ/mol111.5492 ±
0.0049
77748-34-6*0
p-Chlorophenide c1(Cl)cc[c-]cc1179.3168.9± 1.5kJ/mol111.5492 ±
0.0049
77748-42-6*0
o-Chlorophenide c1(Cl)[c-]cccc1158.4148.4± 1.6kJ/mol111.5492 ±
0.0049
72863-53-7*0
Fluoronium [H][F+][H]1490.11491.5± 1.9kJ/mol21.01373 ±
0.00014
12206-67-6*1
2-Oxopropylium CC(=[O+])[CH2]784.5770.7± 1.8kJ/mol57.0707 ±
0.0024
54088-52-7*0
2,3-Butanedione CC(=O)C(=O)C-310.77-327.33± 0.65kJ/mol86.0892 ±
0.0033
431-03-8*0
1,2-Dibromoethane C(Br)CBr-11.6-38.4± 1.2kJ/mol187.8612 ±
0.0026
106-93-4*0
Oxochloronium [Cl+]=O1150.861150.70± 0.66kJ/mol51.45155 ±
0.00095
12301-79-0*0
2-Propynal C#CC=O135.5133.3± 1.4kJ/mol54.0474 ±
0.0024
624-67-9*0
Fluorosyl fluoride FF[O]192.8193.3± 2.3kJ/mol53.99621 ±
0.00030
86825-57-2*1
1,3-Butadiyne-1,4-diyl [C]#CC#[C]1052.401062.37± 0.66kJ/mol48.0428 ±
0.0032
78015-07-3*0
Dihydrogen fluoride anion [F-].[H][H]-257.0-260.1± 1.9kJ/mol21.01483 ±
0.00014
*117339-92-1*2
1-Isocyanoethylidene C[C][N+]#[C-]545.5540.7± 1.6kJ/mol53.0627 ±
0.0024
*498544-34-6*1
3-Imino-2-propen-1-ylidene [CH]C=C=N571.8566.8± 1.6kJ/mol53.0627 ±
0.0024
916765-05-4*21
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]634.5629.8± 1.6kJ/mol53.0627 ±
0.0024
123416-74-0*21
Azete C1=CN=C1469.4461.3± 1.5kJ/mol53.0627 ±
0.0024
287-24-1*0
2-Cyanovinylium [CH+]=CC#N1517.21515.1± 1.8kJ/mol52.0542 ±
0.0024
85398-67-0*21
2-Cyanovinyl anion [CH-]=CC#N263.8260.8± 1.8kJ/mol52.0553 ±
0.0024
*85398-67-0*2
2-Isocyanovinyl [CH]=C[N+]#[C-]543.2541.2± 1.7kJ/mol52.0547 ±
0.0024
225798-14-1*1
3-Oxo-1,2-propadienylidene [C]=C=C=O330.0335.9± 2.0kJ/mol52.0315 ±
0.0024
11127-17-6*0
Dioxygen O=O94.41094.383± 0.000kJ/mol31.99880 ±
0.00060
7782-44-7*2
Vinylacetylene cation C=CC#[CH+]1221.51215.0± 1.1kJ/mol52.0740 ±
0.0032
59699-48-8*0
Bicyclo[1.1.0]but-2-ylium-1-yl [C+]12=CC2C11286.81277.8± 1.5kJ/mol52.0740 ±
0.0032
*78525-41-4*0
Hydroxydioxonitrate O[N](=O)[O-]-193.2-197.6± 2.4kJ/mol63.01343 ±
0.00091
58875-09-5*0
Nitrous acid N(=O)O-71.38-77.73± 0.26kJ/mol47.01348 ±
0.00061
7782-77-6*2
2-Cyclopropen-1-ylidenemethyl [CH]=C1C=C1635.6632.5± 1.3kJ/mol51.0666 ±
0.0032
127611-25-0*0
5-Methyl-1,3-cyclopentadiene CC1C=CC=C1133.6110.7± 1.4kJ/mol80.1277 ±
0.0048
96-38-8*0
Disilicon [Si][Si]587.8591.7± 1.7kJ/mol56.17100 ±
0.00060
12597-35-2*0
Disiloxane [SiH3]O[SiH3]-330.0-347.0± 2.3kJ/mol78.21804 ±
0.00079
13597-73-4*0
Tetramethylsilane C[Si](C)(C)C-184.1-214.6± 2.1kJ/mol88.2236 ±
0.0033
75-76-3*0
Trimethylsilyl C[Si](C)C47.825.8± 2.2kJ/mol73.1891 ±
0.0025
16571-41-8*0
Hydroxysilyl anion [SiH2-]O-219.2-227.2± 2.1kJ/mol47.10927 ±
0.00047
78450-47-2*1
1,2,3,5-Hexatetraene C=C=C=CC=C391.6379.8± 1.6kJ/mol78.1118 ±
0.0048
60239-33-0*1
1,2,3-Pentatriene C=C=C=CC302.4290.1± 1.4kJ/mol66.1011 ±
0.0040
62018-46-6*0
Hydrogen fluoride F-321.16± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*822
Azanylium [NH2+]1266.571264.49± 0.11kJ/mol16.02207 ±
0.00016
15194-15-7*0
Peroxyimidogen anion [N]O[O-]165.0162.7± 1.7kJ/mol46.00609 ±
0.00060
60488-31-5*0
Chlorine difluoride anion [Cl-](F)F-504.9-505.8± 1.9kJ/mol73.45005 ±
0.00090
16892-05-0*0
Ethylene anion C=[CH2-]232.0224.4± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*1
Trioxidanylium OO[O+]1085.21078.9± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*2
Propynylidene cation C#C[CH+]1410.91413.4± 1.3kJ/mol38.0474 ±
0.0024
75123-91-0*0
Nirous oxide cation N#[N+]=O1329.681326.78± 0.12kJ/mol44.01233 ±
0.00033
12269-46-4*0
Propynylidene [CH]=C=[CH]597.4599.2± 1.1kJ/mol38.0480 ±
0.0024
67152-18-5*4
Chlorine difluoride [Cl]FF22.523.8± 1.9kJ/mol73.44951 ±
0.00090
91483-78-2*0
Propadienylidenide C=C=[C-]381.11382.01± 0.41kJ/mol38.0485 ±
0.0024
109292-49-1*0
1,2-Propadien-1-ylium-1-yl C=C=[C+]1561.61562.8± 1.4kJ/mol38.0474 ±
0.0024
110714-00-6*0
(E)-Diazene anion [H]/N=[N-]/[H]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
*59952-06-6*0
Nitrosyl fluoride FN=O-85.81-88.18± 0.93kJ/mol49.00454 ±
0.00031
7789-25-5*0
Fluorodioxidenium FO[O+]1221.91219.5± 2.0kJ/mol50.99665 ±
0.00060
139584-95-5*0
2-Butyn-1-yl anion CC#C[CH2-]253.4244.6± 1.6kJ/mol53.0830 ±
0.0032
65114-66-1*0
(Z)-Diazene cation [H]/N=[N+]\[H]1157.01150.1± 1.3kJ/mol30.02881 ±
0.00020
86631-37-0*0
1-Methylene-2-propenyl C=C[C]=C327.03317.03± 0.94kJ/mol53.0825 ±
0.0032
1204515-52-5*0
Fluorodioxidanide [F-]O[O]-256.8-256.1± 1.9kJ/mol50.99775 ±
0.00060
23553-17-5*0
n-Pentane CCCCC-156.02-172.99± 0.31kJ/mol72.1488 ±
0.0041
109-66-0*500
iso-Pentane CCC(C)C-178.39± 0.43kJ/mol72.1488 ±
0.0041
78-78-4*500
neo-Pentane CC(C)(C)C-189.78± 0.39kJ/mol72.1488 ±
0.0041
463-82-1*500
Cyclopentane C1CCCC1-105.11± 0.42kJ/mol70.1329 ±
0.0041
287-92-3*590
Dioxofluorine [O]F[O]524.0523.2± 1.0kJ/mol50.99720 ±
0.00060
175861-93-5*0
n-Hexane CCCCCC-179.95-198.60± 0.34kJ/mol86.1754 ±
0.0049
110-54-3*500
Cyclohexane C1CCCCC1-156.08± 0.29kJ/mol84.1595 ±
0.0049
110-82-7*500
Oxadiazirine anion [N-]1=NO195.195.5± 2.9kJ/mol44.01343 ±
0.00033
350586-31-1*0
1,5-Hexadiene C=CCCC=C108.4083.81± 0.40kJ/mol82.1436 ±
0.0049
592-42-7*0
Ethane cation C[CH3+]1043.121029.11± 0.59kJ/mol30.0685 ±
0.0017
34488-65-8*0
Methyleneoxonium cation [CH2+].O827.7818.3± 1.7kJ/mol32.04131 ±
0.00090
*177788-17-9*0
Perchloryloxy O=Cl(=O)(=O)[O]248.7241.1± 1.8kJ/mol99.4503 ±
0.0015
12133-63-0*0
Perchlorate O=Cl(=O)(=O)[O-]-263.2-272.1± 2.2kJ/mol99.4508 ±
0.0015
14797-73-0*0
Hydroxymethanide [CH2-]O9.42.8± 1.7kJ/mol31.03447 ±
0.00088
55830-71-2*0
Nitric acid O[N+](=O)[O-]-179.02-173.30± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*500
Acetylene anion C#[CH-]356.8356.7± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*1
Formaldehyde C=O-105.376-109.214± 0.096kJ/mol30.02598 ±
0.00087
50-00-0*2
Trioxodinitrate anion O=N-[N](=O)[O-]-104.2-107.5± 1.9kJ/mol76.01223 ±
0.00091
194856-62-7*100
Dicarbon monoxide cation [C+]=C=O1433.91439.0± 2.1kJ/mol40.0203 ±
0.0016
12287-08-0*0
1-Chloro ozone anion ClOO[O-]-108.9-111.4± 2.2kJ/mol83.4514 ±
0.0013
224299-15-4*3
Azidonitrene [N]=NN=[N]660.8657.6± 1.6kJ/mol56.02696 ±
0.00028
147363-92-6*1
C=O-C cation [C]=[O+][C]1816.81820.9± 2.0kJ/mol40.0203 ±
0.0016
83483-98-1*2
Oxirene anion C1=C[O-]1288.3285.3± 2.2kJ/mol42.0372 ±
0.0016
*157-18-6*0
Hydroxymethylene cation [CH+]O986.4982.8± 1.6kJ/mol30.02543 ±
0.00087
135395-06-1*2
Hydroxymethylene cation [CH+]O1482.11479.4± 1.9kJ/mol30.02543 ±
0.00087
135395-06-1*3
Oxoethylidene [CH]C=O261.1258.2± 1.1kJ/mol42.0367 ±
0.0016
39920-84-8*1
Hydroxymethylene anion [CH-]O160.2157.5± 1.7kJ/mol30.02653 ±
0.00087
207914-87-2*2
Hydroxymethylene anion [CH-]O334.0334.8± 2.1kJ/mol30.02653 ±
0.00087
207914-87-2*3
Formic acid anion [CH-](=O)O-241.2-247.0± 1.9kJ/mol46.0259 ±
0.0010
19066-82-1*2
1-Hydrazinylium-1-yl [N+]N1143.41136.4± 1.4kJ/mol30.02881 ±
0.00020
63986-30-1*0
Dioxirane cation C1[O+]O11050.81043.2± 2.0kJ/mol46.0248 ±
0.0010
232262-10-1*0
Dioxymethyl cation C=[O+][O]1075.01068.6± 1.8kJ/mol46.0248 ±
0.0010
232262-11-2*0
Dihydrogen cation [H][H+]1488.3641488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*0
Dioxymethylene [CH]O[O]341.8339.8± 3.0kJ/mol45.0174 ±
0.0010
438586-67-5*2
OH-CO vdW complex [O][H].[C]#O-80.26-76.53± 0.88kJ/mol45.0174 ±
0.0010
*2564-85-4*100
CO-HO vdW complex [O][H].O#[C]-77.4-73.2± 1.3kJ/mol45.0174 ±
0.0010
*2564-84-3*100
Cyanato cation N#C[O+]1261.491261.99± 0.58kJ/mol42.01629 ±
0.00086
17247-99-3*0
Nitrosomethyliumylidene [C+]N=O1509.81510.9± 1.7kJ/mol42.01629 ±
0.00086
67197-19-7*0
Fulminate [C-]#[N+][O-]59.559.8± 1.7kJ/mol42.01739 ±
0.00086
28269-67-2*0
Acetic acid CC(=O)O-484.08-483.65± 0.18kJ/mol60.0520 ±
0.0017
64-19-7*500
Acetic acid CC(=O)O-484.69± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*825
Acetic acid CC(=O)O-484.88± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*835
Aquacarbon [C].O467.6465.5± 1.9kJ/mol30.02598 ±
0.00087
81434-73-3*102
Aquacarbon cation [C+].O1196.11193.0± 1.7kJ/mol30.02543 ±
0.00087
*81434-73-3*0
Hydrogen fluoride F-321.18± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*823
Diazenide N#N.[H-]347.4344.6± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*1
Glyoxal O=CC=O-189.27-194.71± 0.75kJ/mol58.0361 ±
0.0017
107-22-2*2
Glyoxal O=CC=O-207.71-213.27± 0.61kJ/mol58.0361 ±
0.0017
107-22-2*0
Ethynediol OC#CO-18.4-22.2± 1.7kJ/mol58.0361 ±
0.0017
16005-17-7*0
1-Chloro ozone anion ClOO[O-]-66.8-68.7± 2.1kJ/mol83.4514 ±
0.0013
224299-15-4*1
Hydrogen fluoride F-321.03± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*901
Dimethylaminylium C[N+]C1040.31024.9± 1.8kJ/mol44.0752 ±
0.0017
49784-85-2*0
Diisocyanogen [C-]#[N+][N+]#[C-]610.9613.2± 1.7kJ/mol52.0349 ±
0.0016
78800-21-2*0
Hydrogen fluoride F-320.88± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*815
Hydroxylamine NO-15.4-25.9± 1.4kJ/mol33.02996 ±
0.00037
7803-49-8*2
Carbonic acid OC(=O)O-602.73-612.04± 0.75kJ/mol62.0248 ±
0.0012
463-79-6*0
Dichloromethylene [C](Cl)Cl313.63314.84± 0.90kJ/mol82.9161 ±
0.0020
1605-72-7*1
Hydroxylamine cation N[OH+]857.7847.9± 1.6kJ/mol33.02941 ±
0.00037
62675-55-2*0
Nitric acid O[N+](=O)[O-]-206.32± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*839
Peroxyformic acid C(=O)OO-265.2-273.1± 1.5kJ/mol62.0248 ±
0.0012
107-32-4*3
Chloromethyliumyl [CH+]Cl1207.41207.6± 2.0kJ/mol48.4708 ±
0.0012
89877-51-0*0
Chloromethylene anion [CH-]Cl203.44204.26± 0.94kJ/mol48.4719 ±
0.0012
75466-08-9*0
Chlorohydroxymethyl [CH](Cl)O-46.1-51.7± 2.0kJ/mol65.4787 ±
0.0012
147139-06-8*2
Dihydrogen fluoride F.H-55.9-54.9± 1.6kJ/mol21.01428 ±
0.00014
12592-22-2*1
1,1,2-Trichloroethane C(Cl)C(Cl)Cl-188.6± 1.4kJ/mol133.4033 ±
0.0031
79-00-5*500
1,1,1,2-Tetrachloroethane C(Cl)C(Cl)(Cl)Cl-193.5± 1.1kJ/mol167.8481 ±
0.0039
630-20-6*500
Hexachloroethane C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl-216.5± 2.8kJ/mol236.7376 ±
0.0056
67-72-1*500
Ethynylene cation [C]=[C+]1965.211971.79± 0.50kJ/mol24.0209 ±
0.0016
12595-79-8*0
3-Chloro-3-methyl-3H-diazirine CC1(N=N1)Cl251.4239.5± 2.7kJ/mol90.5114 ±
0.0019
4222-21-3*0
trans-1,2-Dichloroethene C(\Cl)=C/Cl5.30-0.12± 0.54kJ/mol96.9427 ±
0.0024
156-60-5*0
Hydrogen peroxide cation O[OH+]930.99924.13± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*2
Trioxidaniumyl O[O+]O935.2926.1± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*3
Trifluoride ion FF[F-]-348.8-349.7± 2.6kJ/mol56.9957582 ±
0.0000015
25730-99-8*0
Bifluoride F[H][F-]-705.21-709.06± 0.36kJ/mol39.005295 ±
0.000070
18130-74-0*0
Dioxaziridinyl cation [N+]1OO11365.91363.3± 1.7kJ/mol46.00499 ±
0.00060
*66252-29-7*0
Aminyliumyl [NH+]1659.041659.96± 0.24kJ/mol15.014131 ±
0.000099
19067-62-0*0
Fluorochlorobromomethane C(F)(Cl)Br-218.3-230.9± 4.9kJ/mol147.3737 ±
0.0016
593-98-6*0
Nitrogen hydride oxide [NH3+][O-]71.260.0± 1.5kJ/mol33.02996 ±
0.00037
38544-48-8*0
Hydrogen fluoride F-302.41± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*590
Fluoromethyliumyl [CH+]F1116.61116.9± 1.7kJ/mol32.01649 ±
0.00080
89877-52-1*0
Fluoromethylene anion [CH-]F95.9396.47± 0.61kJ/mol32.01759 ±
0.00080
71267-42-0*0
Polytetrafluoroethylene FC(C(F)(F)[*:1])(F)[*:2]-829.66± 0.58kJ/mol100.0150 ±
0.0016
9002-84-0*591
Fluoroniumyl ion [FH+]1275.5611275.793± 0.049kJ/mol20.005795 ±
0.000070
12381-92-9*0
Hydrofluorate ion [FH-]-75.6-75.1± 1.8kJ/mol20.006892 ±
0.000070
37249-79-9*0
trans-1,2-Difluoroethene F/C=C/F-299.66-306.10± 0.90kJ/mol64.0341 ±
0.0016
1630-78-0*0
Aminooxy cation N[O+]946.10938.97± 0.79kJ/mol32.02147 ±
0.00034
*51375-41-8*0
Fluoroethynide [C]#C[F-]133.3137.5± 1.5kJ/mol43.0204 ±
0.0016
85905-56-2*0
Iminomethide [CH-]=N252.6248.9± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*2
Formyl fluoride cation F[CH+]=O816.6813.3± 1.3kJ/mol48.01589 ±
0.00086
99766-68-4*0
Formyl fluoride F[C-]=O-405.1-403.7± 1.6kJ/mol47.00905 ±
0.00085
62227-71-8*0
Fluoroisoformyl cation [C+]OF1347.41349.5± 1.9kJ/mol47.00795 ±
0.00085
*1871-25-6*0
Deuterium atom cation [2H+]1532.2101534.123± 0.000kJ/mol2.01355319809 ±
0.00000000040
14464-47-2*0
Chlorine oxide peroxide O=ClO[O]226.5227.4± 2.5kJ/mol83.4509 ±
0.0013
141801-67-4*100
o-Benzyne cation C1=CC#CC=[CH+]11392.81384.8± 1.7kJ/mol76.0954 ±
0.0048
70220-84-7*0
Hydrogen chloride Cl-166.683± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*841
m-Benzyne cation c1[c]ccc[c+]11364.81356.2± 1.8kJ/mol76.0954 ±
0.0048
121058-08-0*0
p-Benzyne c1c[c]cc[c]1603.5594.1± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*1
Benzylium c1ccc(cc1)[CH2+]929.47909.98± 0.57kJ/mol91.1299 ±
0.0056
6711-19-9*0
1,3-Cycloheptadiene C1CC=CC=CC1123.3394.22± 0.78kJ/mol94.1543 ±
0.0056
4054-38-0*1
Tropylium [CH+]1C=CC=CC=C1898.1878.3± 1.1kJ/mol91.1299 ±
0.0056
26811-28-9*0
Hydroxyaminylium [NH+]O1048.51041.4± 2.6kJ/mol32.02147 ±
0.00034
66097-71-0*2
Hydrogen cyanide cation [CH+]#N1442.511442.05± 0.20kJ/mol27.02483 ±
0.00081
12601-62-6*0
Hydroxyamidogen anion [NH-]O90.784.8± 2.8kJ/mol32.02257 ±
0.00034
*66097-71-0*0
Acetone enol C=C(O)C-147.3-164.6± 1.3kJ/mol58.0791 ±
0.0025
29456-04-0*2
Nitrosyl nitrate O=N(O1)ON1=O70.762.3± 1.8kJ/mol92.0111 ±
0.0012
*15969-55-8*0
cis-1,2-Dibromoethene C(\Br)=C\Br121.2100.7± 2.0kJ/mol185.8453 ±
0.0026
590-11-4*0
1,1-Dibromoethane CC(Br)Br-5.0-32.0± 1.8kJ/mol187.8612 ±
0.0026
557-91-5*0
Nitrilomethylium [C+]#N1783.161786.64± 0.48kJ/mol26.01689 ±
0.00080
12539-57-0*0
Trioxidanyl OO[O]26.3023.03± 0.19kJ/mol49.00614 ±
0.00090
12500-78-6*2
Carbamoyl N=[C]O74.167.7± 2.7kJ/mol44.03272 ±
0.00087
*2858-51-7*1
Formaldiminoxy [CH2]N=O160.9153.9± 1.5kJ/mol44.03272 ±
0.00087
2683-96-7*0
(Hydroxyimino)methyl [CH]=NO250.1243.9± 1.8kJ/mol44.03272 ±
0.00087
206442-92-4*1
Formaldoxime C=NO50.639.8± 1.8kJ/mol45.04066 ±
0.00088
75-17-2*2
Oxaziridine C1NO1115.5103.7± 2.1kJ/mol45.04066 ±
0.00088
6827-26-5*0
Cyanoethynyl [C]#CC#N715.7722.1± 1.2kJ/mol50.0388 ±
0.0024
62435-43-2*0
Dihydrooxooxygen cation [OH2][O+]994.8988.1± 1.6kJ/mol34.01413 ±
0.00062
177329-59-8*0
2-Methylene-2H-azirine C1=NC1=C404.2396.8± 1.7kJ/mol53.0627 ±
0.0024
110027-86-6*0
2-Cyanovinylium [CH+]=CC#N1517.41515.2± 1.8kJ/mol52.0542 ±
0.0024
85398-67-0*22
2-Cyanovinyl anion [CH-]=CC#N266.1263.2± 1.8kJ/mol52.0553 ±
0.0024
*85398-67-0*1
2-Isocyanovinyl [CH]=C[N+]#[C-]544.6542.6± 1.7kJ/mol52.0547 ±
0.0024
225798-14-1*2
Cyanomethylene [CH]C#N529.5530.6± 1.3kJ/mol39.0361 ±
0.0016
2612-62-6*2
Isocyanomethylene [CH][N+]#[C-]586.3587.3± 1.7kJ/mol39.0361 ±
0.0016
78694-65-2*2
Dioxaziridinyl anion [N-]1OO1295.9293.4± 1.7kJ/mol46.00609 ±
0.00060
66252-31-1*0
3-Methylenecyclopropene cation [CH2+]=C1C=C11181.21174.1± 1.4kJ/mol52.0740 ±
0.0032
79105-72-9*0
Chlorite O=[Cl-]=O-105.51-107.68± 0.37kJ/mol67.4520 ±
0.0011
14998-27-7*0
3-Methylcycloprop-3-en-2-ylium-1-yl CC1=[C][CH+]11283.71277.2± 1.5kJ/mol52.0740 ±
0.0032
*185841-59-2*0
Vinylvinylidene cation C=CC=[C+]1429.71424.0± 2.1kJ/mol52.0740 ±
0.0032
161054-20-2*1
1,2-Butadien-1-ylidene CC=C=[C]511.7506.2± 2.1kJ/mol52.0746 ±
0.0032
119908-55-3*2
Dihydrogen fluoride anion F.[H-]-61.9-60.5± 3.2kJ/mol21.01483 ±
0.00014
117339-92-1*2
Hydrogen bromide Br-120.11± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*834
1-Buten-3-ynylium C#CC=[CH+]1482.31479.7± 1.5kJ/mol51.0661 ±
0.0032
84654-85-3*1
Propyne cation CC#[CH+]1192.651186.93± 0.38kJ/mol40.0633 ±
0.0024
34526-53-9*0
3-Buten-1-ynylium C=CC#[C+]1572.51570.1± 1.7kJ/mol51.0661 ±
0.0032
103928-84-3*1
3-Methylene-1-cyclopropen-1-ylium C=C1C=[C+]11398.61395.3± 1.8kJ/mol51.0661 ±
0.0032
117469-28-0*2
3-Methylene-1-cyclopropen-1-yl anion C=C1C=[C-]1417.1413.3± 1.9kJ/mol51.0672 ±
0.0032
*117469-28-0*0
Cyclobutenyl C1[CH]C=C1335.7323.2± 2.2kJ/mol53.0825 ±
0.0032
24669-29-2*0
Butyraldehyde CCCC=O-185.44-205.81± 0.85kJ/mol72.1057 ±
0.0033
123-72-8*0
Chloroallene C=C=CCl181.5174.8± 1.6kJ/mol74.5086 ±
0.0026
3223-70-9*0
1-Chloropropyne CC#CCl191.3187.2± 1.6kJ/mol74.5086 ±
0.0026
7747-84-4*0
Methylcyclopentane CC1CCCC1-68.76-106.29± 0.37kJ/mol84.1595 ±
0.0049
96-37-7*0
Dioxosilane O=[Si]=O-905.58-910.56± 0.89kJ/mol60.08430 ±
0.00067
7631-86-9*500
Dioxosilane O=[Si]=O-825.13-901.06± 0.90kJ/mol60.08430 ±
0.00067
7631-86-9*520
Silicon carbide cation [Si][C+]1602.21606.8± 2.6kJ/mol40.09565 ±
0.00085
78393-58-5*0
Silanide [SiH3-]69.063.4± 1.6kJ/mol31.10987 ±
0.00037
15807-96-2*0
Silyliumyl [SiH2+]1155.91154.3± 1.1kJ/mol30.10083 ±
0.00033
28149-31-7*0
Fluorosyl fluoride anion FF[O-]-147.1-146.8± 3.0kJ/mol53.99675 ±
0.00030
*86825-57-2*2
Hydrogen chloride Cl-165.557± 0.026kJ/mol36.46064 ±
0.00090
7647-01-0*825
Tetraoxidanyl OOO[O]2.00.2± 3.0kJ/mol65.0055 ±
0.0012
69696-93-1*100
Peroxyimidogen cation [N]O[O+]1409.71406.8± 1.9kJ/mol46.00499 ±
0.00060
*60488-32-6*0
Hydrogen bromide Br-120.40± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*844
Cyclopropylidene [C]1CC1544.6535.8± 1.5kJ/mol40.0639 ±
0.0024
2143-70-6*2
Nitrous acid N(=O)O-72.991-78.647± 0.079kJ/mol47.01348 ±
0.00061
7782-77-6*0
(3E)-1,3-Hexadien-5-yne C=C/C=C/C#C358.7346.4± 1.9kJ/mol78.1118 ±
0.0048
5222-77-5*0
Divinylacetylene C=CC#CC=C361.7350.3± 2.0kJ/mol78.1118 ±
0.0048
821-08-9*2
1,2,4-Cyclohexatriene C1C=CC=C=C1419.3403.5± 2.0kJ/mol78.1118 ±
0.0048
124869-33-6*0
Pentatetraene C=C=C=C=C452.6448.6± 1.6kJ/mol64.0853 ±
0.0040
21986-03-8*0
2-Methyl-2-propanamine CC(C)(C)N-87.16-120.81± 0.55kJ/mol73.1369 ±
0.0033
75-64-9*0
Biphenyl c1ccccc1c2ccccc2206.9178.7± 1.2kJ/mol154.2078 ±
0.0096
92-52-4*0
Krypton hydride cation [Kr+][H]1106.331104.55± 0.69kJ/mol84.8074 ±
0.1000
37276-90-7*0
1-Cyclopropene-1,2-diyl C1[C]=[C]1791.0790.6± 1.5kJ/mol38.0480 ±
0.0024
202744-75-0*0
Oxiranylidene C1[C]O1456.1452.1± 2.2kJ/mol42.0367 ±
0.0016
50983-85-2*1
Oxiranylidene cation C1[C+]O11165.41161.9± 2.5kJ/mol42.0361 ±
0.0016
*50983-85-2*0
Oxiranylidene anion C1[C-]O1236.4232.4± 2.3kJ/mol42.0372 ±
0.0016
*50983-86-3*0
Nirous oxide anion [N-]=[N]=O99.296.7± 1.9kJ/mol44.01343 ±
0.00033
12274-12-3*0
Methyl hydroperoxide cation C[O+]O833.5819.5± 2.2kJ/mol48.0407 ±
0.0010
112465-88-0*0
Methoxyoxoniumylidene CO[O+]1012.671003.83± 0.69kJ/mol47.0328 ±
0.0010
86475-50-5*0
Ethylidene anion [CH-]C325.6318.3± 1.8kJ/mol28.0537 ±
0.0016
35829-99-3*0
Cyclopropenyliumdiyl [CH+]1C#C11692.11695.0± 1.9kJ/mol37.0395 ±
0.0024
127476-05-5*0
Chloroniumyl ion [ClH+]1137.7971137.731± 0.0051kJ/mol36.46009 ±
0.00090
12258-94-5*0
Cyclopropynyl anion [CH-]1C#C1518.09521.07± 0.88kJ/mol37.0406 ±
0.0024
136861-42-2*0
Dioxirane anion C1[O-]O1-173.0-179.8± 3.4kJ/mol46.0259 ±
0.0010
*157-26-6*0
Dioxymethyl anion C=[O][O-]55.049.8± 1.4kJ/mol46.0259 ±
0.0010
93207-29-5*0
Tetranitrogen cation [N]=NN=[N+]1392.81392.5± 1.5kJ/mol56.02641 ±
0.00028
12185-04-5*0
Methylammoniumyl C[NH2+]865.91851.98± 0.26kJ/mol31.05659 ±
0.00088
34516-31-9*0
Methanol anion [CH3-]O-89.1-99.8± 2.8kJ/mol32.04241 ±
0.00090
68474-04-4*0
H-CO2 vdW complex [H].O=C=O-178.3-177.5± 2.1kJ/mol45.0174 ±
0.0010
*2564-83-2*100
Methylamine anion C[NH2-]84.269.3± 2.8kJ/mol31.05769 ±
0.00088
81096-79-9*0
2-Propanol CC(O)C-306.09-318.90± 0.36kJ/mol60.0950 ±
0.0025
67-63-0*500
1-Propanol CCCO-290.52-302.70± 0.24kJ/mol60.0950 ±
0.0025
71-23-8*500
Nitrate O=[N+]([O-])[O-]-206.64± 0.18kJ/mol62.00549 ±
0.00090
14797-55-8*800
Peroxychloric acid O=Cl(=O)OO77.569.3± 2.6kJ/mol100.4582 ±
0.0015
177778-91-5*0
Oxazirinyl cation [C+]1=NO11565.51566.2± 2.3kJ/mol42.01629 ±
0.00086
*228850-18-8*0
Oxazirinyl anion [C-]1=NO1448.2449.0± 2.4kJ/mol42.01739 ±
0.00086
28269-68-3*0
Chlorine difluoride cation [Cl+]FF1346.31344.9± 2.1kJ/mol73.44896 ±
0.00090
86825-59-4*0
Chlorine difluoride anion [Cl-]FF-319.0-319.0± 2.2kJ/mol73.45005 ±
0.00090
91419-41-9*0
1-Methoxyethenol C=C(O)OC-284.9-304.2± 1.7kJ/mol74.0785 ±
0.0025
4453-91-2*1
Hydrogen difluoride cation [F+]F[H]1174.31171.3± 1.5kJ/mol39.004198 ±
0.000070
*126950-54-7*2
Aminomethyl anion [CH2-]N209.4199.2± 2.1kJ/mol30.04975 ±
0.00085
74215-21-7*0
Ethyl formate C(=O)OCC-426.1± 1.2kJ/mol74.0785 ±
0.0025
109-94-4*500
Ethanium [CH3+][H][CH3]888.7870.3± 1.8kJ/mol31.0764 ±
0.0017
24669-33-8*2
Triiodine cation I[I+]I946.1941.0± 4.1kJ/mol380.712861 ±
0.000090
12596-32-6*0
Ethanium [CH3+][H][CH3]895.1877.3± 1.9kJ/mol31.0764 ±
0.0017
24669-33-8*3
Methylaminilium C[NH+]1135.01125.2± 2.1kJ/mol30.04865 ±
0.00085
49784-84-1*0
Propionic acid CCC(=O)O-415.8-433.4± 1.3kJ/mol74.0785 ±
0.0025
79-09-4*2
Hydrogen fluoride F-321.07± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*903
Dioxodiazoxane O=NON=O109.3105.3± 1.8kJ/mol76.01168 ±
0.00091
122413-35-8*2
Methyliumylamino C=[NH+]1056.11049.3± 1.8kJ/mol29.04071 ±
0.00083
65130-65-6*0
Cyanogen cation N#C[C+]#N1598.231600.45± 0.42kJ/mol52.0343 ±
0.0016
37354-81-7*0
Isocyanogen [C-]#[N+]C#N412.1414.4± 1.3kJ/mol52.0349 ±
0.0016
83951-85-3*0
Diazoethenylidene [N-]=[N+]=C=[C]658.7661.3± 1.8kJ/mol52.0349 ±
0.0016
130760-10-0*0
Ammonium bromide [NH4+].[Br-]-253.35-269.93± 0.16kJ/mol97.9425 ±
0.0010
12124-97-9*510
Isocyanomethyliumylidene [C][N+]#[C]1615.71621.2± 1.9kJ/mol38.0276 ±
0.0016
78271-45-1*0
Isocyanomethylidyne anion [C][N]#[C-]479.2482.9± 2.0kJ/mol38.0287 ±
0.0016
*53590-27-5*0
Cyanomethyliumylidene [C+]C#N1719.81725.3± 2.1kJ/mol38.0276 ±
0.0016
76619-90-4*0
Cyanomethylidyne anion [C-]C#N410.0413.7± 2.2kJ/mol38.0287 ±
0.0016
12373-35-2*0
2,3-didehydro-1H-azirin-1-yl [N]1C#C1720.3724.4± 2.1kJ/mol38.0281 ±
0.0016
439586-06-8*0
Hydrogen fluoride F-321.18± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*905
Cyanoaminylium [NH+]C#N1362.81359.7± 2.4kJ/mol41.03157 ±
0.00082
205443-18-1*0
Cyanoamidogen anion [NH-]C#N69.9066.89± 0.94kJ/mol41.03267 ±
0.00082
67131-47-9*0
Cyanamide NC#N140.8134.5± 1.5kJ/mol42.04006 ±
0.00082
420-04-2*0
Diazomethylene [C]=N=[N]579.3580.0± 3.8kJ/mol40.02418 ±
0.00081
2468-81-7*0
Hydrogen fluoride F-321.13± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*890
Trichloromethylium [C+](Cl)(Cl)Cl854.35852.83± 0.93kJ/mol118.3683 ±
0.0028
27130-34-3*0
Azanidylmethyl C=[NH-]224.4217.2± 2.2kJ/mol29.04181 ±
0.00083
127593-73-1*0
Dichloromethyliumyl [C+](Cl)Cl1121.61122.6± 1.8kJ/mol82.9156 ±
0.0020
55945-51-2*0
Water O-285.828± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*589
Triazirine N1N=N1464.1457.7± 2.6kJ/mol43.02816 ±
0.00022
157-29-9*0
Hydrogen chloride Cl-165.546± 0.027kJ/mol36.46064 ±
0.00090
7647-01-0*953
2-Propenylidyne anion C=C[C-]464.5460.7± 1.7kJ/mol39.0565 ±
0.0024
120126-89-8*0
Tribromide Br[Br-]Br-287.4-308.4± 1.9kJ/mol239.7125 ±
0.0030
14522-80-6*0
Aminomethyliumyl [CH][NH2+]1039.51031.9± 2.3kJ/mol29.04071 ±
0.00083
89302-94-3*0
Fluorosyl fluoride anion FF[O-]-56.6-55.7± 2.4kJ/mol53.99675 ±
0.00030
*86825-57-2*1
2-Propen-3-yliumylidene [CH]C=[CH+]1494.41491.4± 1.7kJ/mol39.0554 ±
0.0024
84654-86-4*0
2-Chloro ozone anion ClO([O])[O-]-103.3-105.5± 3.2kJ/mol83.4514 ±
0.0013
*141801-67-4*0
2-Propenylidene anion [CH]C=[CH-]535.8532.4± 1.7kJ/mol39.0565 ±
0.0024
98705-30-7*0
Aminomethylene anion [CH][NH2-]353.0346.1± 2.3kJ/mol29.04181 ±
0.00083
207914-86-1*0
Deuterium hydride cation [H][2H+]1490.4981490.587± 0.000kJ/mol3.021493 ±
0.000070
12181-16-7*0
Methylimidogen anion C[N-]321.1313.5± 1.4kJ/mol29.04181 ±
0.00083
82539-34-2*0
Chlorosyl chloride cation ClCl[O+]1132.61130.8± 2.0kJ/mol86.9043 ±
0.0018
*86825-56-1*0
Methyleneaminylium C=[N+]1456.61453.0± 2.1kJ/mol28.03277 ±
0.00082
53518-13-1*1
Trifluorine cation FF[F+]1529.51527.4± 2.3kJ/mol56.9946610 ±
0.0000015
64710-22-1*0
Cyclopentene C1CC=CC16.88± 0.52kJ/mol68.1170 ±
0.0040
142-29-0*590
Hydrogen fluoride F-321.18± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*891
Chloromethane cation C[Cl+]1014.971008.20± 0.25kJ/mol50.4867 ±
0.0012
12538-71-5*0
Hydrogen chloride Cl-166.713± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*951
Cyanogen bromide anion BrC#[N-]58.254.5± 3.8kJ/mol105.9220 ±
0.0013
54092-05-6*0
Bromine atom [Br]117.917111.855± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*1
Bromofluoromethane C(F)Br-197.4-211.9± 4.9kJ/mol112.9290 ±
0.0013
373-52-4*0
Chlorosyl chloride anion ClCl[O-]-185.4-184.7± 2.3kJ/mol86.9053 ±
0.0018
*86825-55-0*0
Fluorodibromomethane C(F)(Br)Br-159.7-179.3± 4.9kJ/mol191.8250 ±
0.0022
1868-53-7*0
Difluorochlorobromomethane C(F)(F)(Cl)Br-428.9-439.9± 4.9kJ/mol165.3642 ±
0.0016
353-59-3*0
Dichlorofluorobromomethane C(Cl)(Cl)(F)Br-228.3-238.3± 4.9kJ/mol181.8185 ±
0.0022
353-58-2*0
Dibromofluorochloromethane C(Br)(Br)(F)Cl-169.9-186.8± 4.9kJ/mol226.2698 ±
0.0023
353-55-9*0
Krypton cation [Kr+]1350.7561350.756± 0.000kJ/mol83.7995 ±
0.1000
16915-28-9*0
Chloryl chloride ClCl([O])[O]126.1122.1± 1.7kJ/mol102.9042 ±
0.0019
117489-73-3*0
1-Ethylium-1-yl [CH+]C1182.01174.6± 3.2kJ/mol28.0526 ±
0.0016
85944-79-2*0
Cyclohexene C1CCC=CC127.03-4.43± 0.32kJ/mol82.1436 ±
0.0049
110-83-8*0
Cyclohexene C1CCC=CC1-22.12-37.99± 0.31kJ/mol82.1436 ±
0.0049
110-83-8*500
1,2-Difluoroacetylene cation F[C+]#CF1081.71084.5± 1.3kJ/mol62.0177 ±
0.0016
268566-70-7*0
iso-Proplylide C[CH-]C128.6110.2± 1.5kJ/mol43.0882 ±
0.0024
25012-80-0*0
Difluorophosgene cation C(F)(F)=[O+]653.45650.69± 0.51kJ/mol66.00636 ±
0.00085
73256-56-1*0
1,2-Propadien-1-yl-3-ylidene anion [C]=C=[C-]622.0629.4± 1.3kJ/mol36.0326 ±
0.0024
109292-47-9*0
Dibromine BrBr-2.16± 0.20kJ/mol159.8080 ±
0.0020
7726-95-6*800
Hypofluorous acid cation O[F+]1142.011138.99± 0.87kJ/mol36.00519 ±
0.00031
90243-22-4*0
Chloro(chlorooxy)methylene Cl[C]OCl73.573.7± 3.6kJ/mol98.9155 ±
0.0020
479587-31-0*2
Aminooxy anion N[O-]47.440.5± 1.7kJ/mol32.02257 ±
0.00034
51375-41-8*0
Chlorohydroxymethylene Cl[C]OH13.910.9± 2.6kJ/mol64.4707 ±
0.0012
147723-60-2*1
(Chlorooxy)methylene H[C]OCl119.1117.8± 2.7kJ/mol64.4707 ±
0.0012
331419-80-8*2
Dibromophosgene C(Br)(Br)=O-144.07± 0.95kJ/mol187.8181 ±
0.0022
593-95-3*590
Dioxygen O=O-0.000-0.000± 0.000kJ/mol31.99880 ±
0.00060
7782-44-7*1
2-Chloroethanol ClCCO-314.92± 0.53kJ/mol80.5132 ±
0.0019
107-07-3*590
2-Bromoethanol BrCCO-274.52± 0.47kJ/mol124.9645 ±
0.0019
540-51-2*590
Hydrogen fluoride F-321.06± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*888
Phenylium c1cccc[c+]11148.551135.77± 0.85kJ/mol77.1034 ±
0.0048
17333-73-2*2
2-Cyclopropyn-1-ylidene C1=C=C=1993.21000.1± 2.5kJ/mol36.0321 ±
0.0024
102508-15-6*2
m-Benzyne anion c1[c]ccc[c-]1444.1435.2± 1.3kJ/mol76.0965 ±
0.0048
249589-31-9*0
p-Benzyne anion c1c[c]cc[c-]1465.0455.4± 1.3kJ/mol76.0965 ±
0.0048
219298-17-6*0
2-Cyclopropyn-1-yl anion [C-]1=C=C=1664.8672.1± 1.6kJ/mol36.0326 ±
0.0024
500574-36-7*0
Cycloheptane C1CCCCCC1-126.86-156.75± 0.51kJ/mol98.1861 ±
0.0057
291-64-5*500
Aminomethyliumylidene [C+]N1168.31165.1± 2.2kJ/mol28.03277 ±
0.00082
86784-42-1*0
Ethylbenzene c1ccc(cc1)CC-12.53± 0.55kJ/mol106.1650 ±
0.0064
100-41-4*500
Nitrosyl nitrate O=NO[N+](=O)[O-]48.340.4± 1.8kJ/mol92.0111 ±
0.0012
15969-55-8*1
Phenylacetylene c1ccc(cc1)C#C273.4± 1.1kJ/mol102.1332 ±
0.0064
536-74-3*500
Hypochlorous acid cation O[Cl+]998.92995.87± 0.90kJ/mol52.45949 ±
0.00095
71606-47-8*0
Phenyloxoniumylidene c1ccc(cc1)[O+]901.4887.1± 2.2kJ/mol93.1028 ±
0.0048
41071-17-4*0
Anisole c1ccccc1OC-47.81-72.66± 0.79kJ/mol108.1378 ±
0.0056
100-66-3*0
Hydrogen chloride Cl-165.979± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*829
Ethylene anion C=[CH2-]231.5225.4± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*2
Fluorobenzene c1ccc(cc1)F-151.80-149.39± 0.89kJ/mol96.1023 ±
0.0048
462-06-6*500
Oxobromonium Br[O+]1139.41131.7± 1.5kJ/mol95.9029 ±
0.0010
142315-39-7*0
Bromobenzene c1ccc(cc1)Br59.9± 1.3kJ/mol157.0079 ±
0.0049
108-86-1*500
Acetone CC(=O)C-245.00-248.12± 0.35kJ/mol58.0791 ±
0.0025
67-64-1*500
1-Hydroxyethanide C[CH-]O-20.3-33.7± 2.2kJ/mol45.0610 ±
0.0017
88032-18-2*0
Propionaldehyde CCC=O-218.17-216.71± 0.28kJ/mol58.0791 ±
0.0025
123-38-6*500
Ethyl nitrite CCON=O-81.38-98.78± 0.88kJ/mol75.0666 ±
0.0017
109-95-5*0
Hydrogen bromide Br-120.34± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*952
trans-1,2-Dibromoethene C(\Br)=C/Br121.5101.7± 2.0kJ/mol185.8453 ±
0.0026
590-12-5*0
1,1-Dibromoethene C=C(Br)Br125.4105.1± 2.1kJ/mol185.8453 ±
0.0026
593-92-0*0
Norbornadiene C1C2C=CC1C=C2267.5242.0± 1.0kJ/mol92.1384 ±
0.0056
121-46-0*0
Monoammonium succinate OC(=O)CCC(=O)[O-].[NH4+]-1067.96± 0.72kJ/mol135.1186 ±
0.0035
38457-08-8*510
Diammonium succinate [O-]C(=O)CCC(=O)[O-].[NH4+].[NH4+]-1182.50± 0.48kJ/mol152.1492 ±
0.0035
2226-88-2*510
Hydrooxonitrate [NH-]=O78.6275.70± 0.99kJ/mol31.01463 ±
0.00032
66057-02-1*0
Nitric acid cation O[N+](=O)[O]1029.131020.07± 0.69kJ/mol63.01233 ±
0.00091
272109-63-4*0
Hydroxyimidogen anion [N-]O229.8227.4± 2.2kJ/mol31.01463 ±
0.00032
*35337-59-8*0
Acrolein C=CC=O-46.5-56.8± 1.4kJ/mol56.0633 ±
0.0024
107-02-8*2
Ethenedione O=C=C=O14.917.3± 2.2kJ/mol56.0202 ±
0.0017
4363-38-6*0
Ethenedione cation O=C=C=[O+]909.7912.8± 2.3kJ/mol56.0197 ±
0.0017
12541-99-0*0
Hydrogen chloride Cl-166.637± 0.025kJ/mol36.46064 ±
0.00090
7647-01-0*840
Fluorine atom cation [F+]1758.3061760.604± 0.048kJ/mol18.99785462 ±
0.00000050
14701-13-4*0
Hypobromous acid cation O[Br+]975.01964.39± 0.53kJ/mol96.9108 ±
0.0010
154804-02-1*0
Dinitrogen pentoxide O=[N+]([O-])O[N+](=O)[O-]-41.02± 0.42kJ/mol108.0105 ±
0.0015
10102-03-1*500
3-Imino-2-propen-1-ylidene [CH]C=C=N532.9527.9± 1.8kJ/mol53.0627 ±
0.0024
916765-05-4*12
3-Imino-2-propen-1-ylidene [CH]C=C=N572.5567.3± 2.0kJ/mol53.0627 ±
0.0024
916765-05-4*22
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]604.5599.6± 1.9kJ/mol53.0627 ±
0.0024
123416-74-0*12
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]637.1632.3± 2.0kJ/mol53.0627 ±
0.0024
123416-74-0*22
Hypochlorous acid anion O[Cl-]198.7198.4± 2.5kJ/mol52.46059 ±
0.00095
34524-94-2*0
1-Cyanovinylium C=[C+]C#N1318.31317.1± 2.2kJ/mol52.0542 ±
0.0024
85399-09-3*0
Hydrogen bromide Br-120.35± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*842
Diazenium N[NH+]968.64957.38± 0.73kJ/mol31.03675 ±
0.00025
37369-93-0*0
(Methylmethylene)oxonium CO[CH2+]685.6671.3± 2.3kJ/mol45.0600 ±
0.0017
23653-97-6*0
Methoxymethyl anion CO[CH2-]23.010.0± 2.3kJ/mol45.0610 ±
0.0017
61192-30-1*0
Cyclopropylide C1C[CH-]1264.7251.9± 1.8kJ/mol41.0723 ±
0.0024
1724-45-4*0
Acetaldehyde anion CC=[O-]-62.2-72.5± 2.2kJ/mol44.0531 ±
0.0017
60427-04-5*0
Tetraoxygen O=O.O=O145.8142.2± 3.8kJ/mol63.9976 ±
0.0012
12596-83-7*22
Butatriene cation C=C=[C+]=C1210.31204.4± 1.3kJ/mol52.0740 ±
0.0032
65513-85-1*0
3-Methanetetrayl-1,2-cyclopropanediylidene [C]=C1C#C11154.81164.2± 1.9kJ/mol48.0428 ±
0.0032
78015-08-4*0
Bicyclo[1.1.0]but-3-ene C12=CC2C1483.1474.1± 1.6kJ/mol52.0746 ±
0.0032
78525-41-4*0
Vinylvinylidene anion C=CC=[C-]405.7398.9± 2.1kJ/mol52.0751 ±
0.0032
167386-49-4*1
Tetrahedrane cation C12C3C1[CH+]231326.61318.4± 1.8kJ/mol52.0740 ±
0.0032
80826-01-3*0
Bicyclo[1.1.0]but-1(3)-ene C1C2=C1C2578.7570.3± 2.0kJ/mol52.0746 ±
0.0032
58208-49-4*0
Bicyclo[1.1.0]but-1(3)-ene cation C1[C+]2=C1C21461.51453.4± 2.1kJ/mol52.0740 ±
0.0032
*58208-49-4*0
Hydrogen bromide Br-120.30± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*841
2-Cyclopropyn-1-ylidenemethyl anion [C-]=C1C#C1800.9809.9± 1.7kJ/mol48.0433 ±
0.0032
289679-90-9*0
Imidogen anion [NH-]322.62322.67± 0.16kJ/mol15.015229 ±
0.000099
23841-33-0*0
1-Buten-3-yn-1-yl C#CC=[CH]547.7544.9± 1.2kJ/mol51.0666 ±
0.0032
2810-61-9*2
Hypofluorous acid anion O[F-]155.3154.7± 2.6kJ/mol36.00629 ±
0.00031
36505-07-4*2
Trioxidanylium OO[O+]1070.41064.2± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*0
1-Hydroxyethenyl C=[C]O121.31114.93± 0.99kJ/mol43.0446 ±
0.0016
81847-74-7*0
3-Buten-1-ynylium C=CC#[C+]1603.71602.7± 1.7kJ/mol51.0661 ±
0.0032
103928-84-3*2
3-Methylene-1-cyclopropen-1-ylium C=C1C=[C+]11467.51463.9± 1.6kJ/mol51.0661 ±
0.0032
117469-28-0*1
Triazirinylium ion [N]1N=[N+]11608.91606.0± 1.6kJ/mol42.01967 ±
0.00021
92220-05-8*0
2-Cyclopropen-1-ylidenemethylium [CH+]=C1C=C11346.31343.7± 1.8kJ/mol51.0661 ±
0.0032
112936-36-4*2
1,3-Cyclobutadien-1-ylium [C+]1=CC=C11388.21383.2± 1.9kJ/mol51.0661 ±
0.0032
81913-77-1*2
Cyanic azide N#CN=[N+]=[N-]502.7498.3± 1.9kJ/mol68.03766 ±
0.00085
764-05-6*0
Phenyl hydroperoxide c1ccc(cc1)OO13.0-6.0± 2.1kJ/mol110.1106 ±
0.0049
36112-26-2*0
Methylcyclopentane CC1CCCC1-116.71-138.07± 0.36kJ/mol84.1595 ±
0.0049
96-37-7*500
Carbon [C]711.398716.883± 0.045kJ/mol12.01070 ±
0.00080
7440-44-0*1
Dioxosilane O=[Si]=O-905.58-910.56± 0.89kJ/mol60.08430 ±
0.00067
7631-86-9*505
Dioxosilane O=[Si]=O-902.88-907.74± 0.93kJ/mol60.08430 ±
0.00067
7631-86-9*510
Formaldehyde anion C=[O-]-26.7-28.3± 2.0kJ/mol30.02653 ±
0.00087
27837-46-3*0
Propynylidene [CH]=C=[CH]543.45546.45± 0.65kJ/mol38.0480 ±
0.0024
67152-18-5*0
Ammonium chloride [NH4+].[Cl-]-311.556-314.718± 0.063kJ/mol53.49120 ±
0.00095
12125-02-9*510
Silylene anion [SiH2-]168.0166.4± 1.6kJ/mol30.10193 ±
0.00033
54991-62-7*0
Silylidyne [SiH]371.45373.24± 0.81kJ/mol29.09344 ±
0.00031
13774-94-2*0
Silyliumylidene [SiH+]1134.71135.9± 1.2kJ/mol29.09289 ±
0.00031
31241-66-4*0
Isocyanomethylium [CH2+][N+]#[C-]1272.91270.7± 2.2kJ/mol40.0435 ±
0.0016
78269-43-9*0
Carbon [C]833.329838.475± 0.045kJ/mol12.01070 ±
0.00080
7440-44-0*2
1-Propenylidene CC=[C]630.3622.8± 1.7kJ/mol40.0639 ±
0.0024
70277-78-0*2
Formaldehyde C=O196.015192.684± 0.096kJ/mol30.02598 ±
0.00087
50-00-0*1
Hydrogen chloride Cl-165.946± 0.026kJ/mol36.46064 ±
0.00090
7647-01-0*907
Ketene cation C=C=[O+]882.22879.05± 0.11kJ/mol42.0361 ±
0.0016
64999-16-2*0
Ketene anion C=C=[O-]-16.0-19.1± 2.2kJ/mol42.0372 ±
0.0016
56391-79-8*0
Tribromine BrBrBr155.9134.2± 3.2kJ/mol239.7120 ±
0.0030
11094-39-6*0
Fluorosyl fluoride cation FF[O+]1413.11413.5± 3.5kJ/mol53.99566 ±
0.00030
*86825-50-5*1
Ammonium radical [NH4]190.01179.42± 0.43kJ/mol18.03850 ±
0.00029
92075-50-8*0
Dewar benzene C1=CC2C1C=C2422.0405.0± 1.8kJ/mol78.1118 ±
0.0048
5649-95-6*0
Acetylene anion C#[CH-]380.1380.3± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*2
Hydroxyoxoammoniumyl O[N+]=O984.1977.7± 1.8kJ/mol47.01293 ±
0.00061
80371-48-8*0
Ozone cation O=[O+]=O1352.8711350.532± 0.041kJ/mol47.99765 ±
0.00090
12596-82-6*0
1,2-Hexadien-4-yne C=C=CC#CC407.3397.3± 1.7kJ/mol78.1118 ±
0.0048
34783-10-3*0
3-Methylene-1-penten-4-yne C=CC(=C)C#C362.5349.9± 2.2kJ/mol78.1118 ±
0.0048
6929-96-0*1
Oxoethenylium [CH+]=C=O1139.71142.4± 2.1kJ/mol41.0282 ±
0.0016
92056-63-8*0
3-Methyl-1,4-pentadiyne C#CC(C)C#C438.9427.4± 1.6kJ/mol78.1118 ±
0.0048
57242-04-3*0
2-Methyl-2-propanamine CC(C)(C)N-133.26-150.74± 0.54kJ/mol73.1369 ±
0.0033
75-64-9*500
1,2-Diphenylethane c1ccccc1CCc2ccccc284.6650.92± 0.76kJ/mol182.2610 ±
0.0112
103-29-7*500
Anthracene c1ccc2cc3ccccc3cc2c1255.86226.84± 0.99kJ/mol178.2292 ±
0.0112
120-12-7*0
Anthracene c1ccc2cc3ccccc3cc2c1150.49124.68± 0.93kJ/mol178.2292 ±
0.0112
120-12-7*500
Bromine dioxide [O]Br[O]167.1157.5± 3.0kJ/mol111.9028 ±
0.0012
21255-83-4*0
Phenanthrene c1ccc2c(c1)ccc3c2cccc3136.13110.85± 0.67kJ/mol178.2292 ±
0.0112
85-01-8*500
Diphenylacetylene c1ccc(cc1)C#Cc2ccccc2334.6312.7± 1.1kJ/mol178.2292 ±
0.0112
501-65-5*500
Hydroperoxyimidogen OO[N]103.399.8± 2.4kJ/mol47.01348 ±
0.00061
877456-58-1*1
Bicyclo[1.1.0]buta-1,1-diene-2,4-diyl C12[C]=[C]2=[C]1990.3993.6± 2.0kJ/mol49.0507 ±
0.0032
*99417-53-5*0
Benzoic acid c1ccc(cc1)C(=O)O-274.39-294.19± 0.20kJ/mol122.1213 ±
0.0056
65-85-0*0
Hydraziniumyl N[NH2+]886.6873.3± 2.0kJ/mol32.04469 ±
0.00031
20771-51-1*0
Peroxychlorous acid O=ClOO103.597.7± 2.5kJ/mol84.4588 ±
0.0013
177778-92-6*2
Carbon dioxide anion [C-](=O)=O-340.6-340.1± 2.2kJ/mol44.01005 ±
0.00100
14485-07-5*0
Cyanoaminyliumyl [N]=[C+]=[N]1672.21673.6± 2.6kJ/mol40.02363 ±
0.00081
316122-03-9*0
Cyanoamidogen anion [N]=[C-]=[N]211.72211.65± 0.62kJ/mol40.02473 ±
0.00081
189879-95-6*0
Dioxiranylidene cation [C+]1OO11409.11410.3± 2.6kJ/mol44.00895 ±
0.00100
*138832-57-2*0
Ethyl hydroperoxide CCOO-210.± 20.kJ/mol62.0678 ±
0.0018
3031-74-1*500
Cyanamide NC#N58.89± 0.54kJ/mol42.04006 ±
0.00082
420-04-2*500
Hydrogen fluoride F-321.12± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*904
Diazomethyliumyl [C+]=N=[N]1641.21642.4± 4.1kJ/mol40.02363 ±
0.00081
307495-90-5*0
Diazomethylene anion [C-]=N=[N]408.3408.5± 3.8kJ/mol40.02473 ±
0.00081
205498-92-6*0
3H-Diazirin-3-ylidene [C]1N=N1579.0579.4± 2.7kJ/mol40.02418 ±
0.00081
253308-70-2*0
Dioxiranylidene anion [C-]1OO1-110.2-109.7± 3.0kJ/mol44.01005 ±
0.00100
*138832-58-3*0
2-Butynylium CC#C[CH2+]1085.61077.4± 1.6kJ/mol53.0820 ±
0.0032
64235-83-2*2
Chloromethyliumylidene [C+]Cl1282.61285.7± 2.4kJ/mol47.4629 ±
0.0012
69773-94-0*0
Chloromethylidyne anion [C-]Cl319.7323.4± 2.5kJ/mol47.4639 ±
0.0012
117129-77-8*0
Peroxynitrous acid OON=O-5.80-11.63± 0.36kJ/mol63.01288 ±
0.00091
14691-52-2*0
Formic acid C(=O)O-431.54-424.71± 0.20kJ/mol46.0254 ±
0.0010
64-18-6*500
Peroxyhypochlorous acid anion OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*2
Dioxodiazoxane O=NON=O125.7120.4± 2.1kJ/mol76.01168 ±
0.00091
122413-35-8*3
1,1,1-Trichloroethane CC(Cl)(Cl)Cl-177.54± 0.49kJ/mol133.4033 ±
0.0031
71-55-6*500
Carbon monoxide [C-]#[O+]465.578469.285± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*1
Isodiazene anion [N-]N380.9374.1± 2.1kJ/mol30.02991 ±
0.00020
*63986-30-1*0
Vinyl chloride C=CCl-2.71.9± 1.9kJ/mol62.4979 ±
0.0018
75-01-4*500
Poly(vinylchloride) C{-}(Cl)C{+n}-84.6-94.0± 1.3kJ/mol62.4979 ±
0.0018
9002-86-2*500
(Z)-Diazene anion [H]/N=[N-]\[H]280.0273.3± 2.0kJ/mol30.02991 ±
0.00020
*86631-37-0*0
Oxadiazirine cation [N+]1=NO11509.91507.2± 2.4kJ/mol44.01233 ±
0.00033
*227934-45-4*0
1,1-Dichloroethene C=C(Cl)Cl-23.80± 0.50kJ/mol96.9427 ±
0.0024
75-35-4*500
Dioxymethylidyne cation [C+]O[O]1436.61439.0± 2.7kJ/mol44.00895 ±
0.00100
*791121-04-5*2
Dihydrogen fluoride F.H-56.5-54.1± 1.7kJ/mol21.01428 ±
0.00014
12592-22-2*2
Peroxyhypochlorite ClO[O-]-252.68-251.66± 0.35kJ/mol67.4520 ±
0.0011
224299-14-3*0
Hydrogen chloride Cl-166.741± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*842
Formyloxidanyl C(=O)[O]-125.90-127.26± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*0
Hydrogen difluoride cation F[H][F+]1241.1238.± 17.kJ/mol39.004198 ±
0.000070
126950-54-7*1
Dichloromethane C(Cl)Cl-122.39± 0.54kJ/mol84.9320 ±
0.0020
75-09-2*590
Dioxiranyl O1[CH]O1217.3213.9± 2.0kJ/mol45.0174 ±
0.0010
120595-16-6*0
Propane cation CC[CH3+]974.6954.5± 1.7kJ/mol44.0951 ±
0.0025
34479-70-4*0
Hydroxylamine NO-97.1± 2.2kJ/mol33.02996 ±
0.00037
7803-49-8*1000
Isoprene CC(=C)C=C48.82± 0.69kJ/mol68.1170 ±
0.0040
78-79-5*500
Azide [N]N=[N-]272.64± 0.48kJ/mol42.02077 ±
0.00021
14343-69-2*800
Difluoromethylene anion [C-](F)F-211.16-209.98± 0.58kJ/mol50.00805 ±
0.00080
66212-40-6*0
Dihydrogen [H][H]1.4170.019± 0.000kJ/mol2.01588 ±
0.00014
1333-74-0*1
Fluoromethylidyne anion [C-]F200.8204.3± 1.9kJ/mol31.00965 ±
0.00080
33412-12-3*0
Hydrazine NN57.2550.69± 0.18kJ/mol32.04524 ±
0.00031
302-01-2*500
Ethynylene [C]=[C]827.55834.26± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*1
Oxygen atom hexacation [O+6]42035.2842037.14± 0.12kJ/mol15.99611 ±
0.00030
14158-22-6*0
Trioxidane OOO-82.01-90.61± 0.63kJ/mol50.01408 ±
0.00091
14699-99-1*0
2,4,5-Trioxa-1,3-diazabicyclo[1.1.1]pentane N12ON(O1)O2602.5593.3± 2.1kJ/mol76.01168 ±
0.00091
224950-18-9*0
Ethoxyethane CCOCC-265.46-277.78± 0.82kJ/mol74.1216 ±
0.0033
60-29-7*500
Bromosyl bromide BrBr[O]179.0163.2± 2.1kJ/mol175.8074 ±
0.0020
68322-97-4*0
Hydrogen fluoride F-321.04± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*887
Triiodine III153.4149.4± 3.6kJ/mol380.713410 ±
0.000090
12596-31-5*0
Isocyanogen iodide IN=[C]341.7342.0± 4.9kJ/mol152.92191 ±
0.00080
66004-32-8*0
Difluorovinylidene [C]=C(F)F129.4130.6± 2.2kJ/mol62.0182 ±
0.0016
41895-33-4*0
1,2-Propadien-1-ylium-1-yl-3-ylidene [C]=C=[C+]1981.51989.4± 2.2kJ/mol36.0316 ±
0.0024
118090-85-0*1
Fluoroethynylium [C+]#CF1536.21540.9± 2.3kJ/mol43.0193 ±
0.0016
268566-69-4*0
n-Heptane CCCCCCC-201.65-224.11± 0.46kJ/mol100.2019 ±
0.0057
142-82-5*500
Bromoacetylene C#CBr282.2275.7± 1.6kJ/mol104.9333 ±
0.0019
593-61-3*0
n-Octane CCCCCCCC-226.49-249.61± 0.55kJ/mol114.2285 ±
0.0065
111-65-9*500
Hydrazoic acid anion N=[N]=[N-]309.0302.7± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*1
n-Nonane CCCCCCCCC-247.83-274.69± 0.50kJ/mol128.2551 ±
0.0073
111-84-2*500
Chloro(chlorooxy)methylene Cl[C]OCl98.101.± 15.kJ/mol98.9155 ±
0.0020
479587-31-0*11
Chlorooxomethylium Cl[C+]=O783.7783.9± 2.2kJ/mol63.4623 ±
0.0012
38264-03-8*0
Hydrochlorate ion [ClH-]-25.2-24.2± 2.5kJ/mol36.46119 ±
0.00090
63099-75-2*0
Chlorine hydride oxide [H][Cl](=O)(=O)=O165.2155.3± 2.5kJ/mol84.4588 ±
0.0013
1027055-52-2*0
2-Iodoethanol ICCO-207.2± 2.4kJ/mol171.9650 ±
0.0017
624-76-0*590
1,3-Butadiyne cation C#CC#[CH+]1440.131441.99± 0.64kJ/mol50.0581 ±
0.0032
55468-55-8*0
Chlorine chlorite ClO[Cl]=O177.4175.0± 2.2kJ/mol102.9042 ±
0.0019
105206-44-8*2
Carbon suboxide cation O=C=[C+]=C=O928.3931.8± 1.3kJ/mol68.0304 ±
0.0025
151528-67-5*0
Carbon suboxide anion O=C=[C-]=C=O-131.4-128.0± 2.5kJ/mol68.0314 ±
0.0025
109362-94-9*0
Benzene anion c1ccc(cc1)[H-]209.1197.2± 1.2kJ/mol78.1124 ±
0.0048
34562-85-1*0
Methanol dimer CO.CO-398.5-419.1± 1.4kJ/mol64.0837 ±
0.0018
42845-44-3*0
Trioxirane O1OO1272.7270.1± 1.3kJ/mol47.99820 ±
0.00090
153851-84-4*0
Tetraoxodinitrogen cation O=N(=O)[N+](=O)=O1030.61025.2± 2.6kJ/mol92.0105 ±
0.0012
64476-91-1*0
n-Decane CCCCCCCCCC-273.01-300.56± 0.80kJ/mol142.2817 ±
0.0081
124-18-5*500
Cyclopropenylidene anion C1=[C-]=C1544.2543.8± 2.2kJ/mol38.0485 ±
0.0024
*16165-40-5*0
o-Benzyne C1=CC#CC=C1625.6616.3± 1.1kJ/mol76.0960 ±
0.0048
462-80-6*1
Trioxidanyl OO[O]25.3223.23± 0.13kJ/mol49.00614 ±
0.00090
12500-78-6*0
1,5-Hexadiene C=CCCC=C54.44± 0.32kJ/mol82.1436 ±
0.0049
592-42-7*500
Methylamine CN-45.25± 0.45kJ/mol31.05714 ±
0.00088
74-89-5*500
m-Benzyne c1[c]ccc[c]1527.0518.5± 1.2kJ/mol76.0960 ±
0.0048
1828-89-3*0
1-Methyl-1-ethylium-1-yl C[C+]C1058.11045.6± 1.9kJ/mol42.0792 ±
0.0024
121408-19-3*0
p-Benzyne cation c1c[c]cc[c+]11424.91417.7± 2.1kJ/mol76.0954 ±
0.0048
121058-09-1*0
p-Benzyne c1c[c]cc[c]1587.0577.6± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*0
Difluorodioxidanium FO[O+]F1283.71279.1± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*1
Toluene c1ccc(cc1)C19.8212.07± 0.33kJ/mol92.1384 ±
0.0056
108-88-3*500
Oxygen difluoride anion FO[F-]-202.0-201.9± 2.7kJ/mol53.99675 ±
0.00030
*7783-41-7*0
Cyclopentadienylium [CH+]1C=CC=C11087.731074.87± 0.92kJ/mol65.0927 ±
0.0040
29661-18-5*0
Cycloheptene C1CCC=CCC1-25.5-46.6± 1.7kJ/mol96.1702 ±
0.0057
628-92-2*500
NON cation [N]O[N+]1443.91444.1± 2.8kJ/mol44.01233 ±
0.00033
*227934-46-5*0
Cycloheptatriene C1C=CC=CC=C1153.83145.05± 0.97kJ/mol92.1384 ±
0.0056
544-25-2*500
Phenylethene c1ccc(cc1)C=C104.31± 0.48kJ/mol104.1491 ±
0.0064
100-42-5*500
Tetrazete N1=NN=N1764.9759.0± 1.8kJ/mol56.02696 ±
0.00028
42851-09-2*0
Phenol c1ccc(cc1)O-146.50-162.35± 0.65kJ/mol94.1112 ±
0.0048
108-95-2*500
Cycloprop-2-enylide C1=C[CH-]1514.8511.8± 2.2kJ/mol39.0565 ±
0.0024
20829-57-6*0
Dihydrogen cation [H][H+]1489.0601488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*1
Anisole c1ccccc1OC-119.58± 0.77kJ/mol108.1378 ±
0.0056
100-66-3*500
Hydrogen difluoride cation [F+]F[H]1267.61265.4± 4.1kJ/mol39.004198 ±
0.000070
*126950-54-7*1
Benzaldehyde c1ccc(cc1)C=O-85.7-86.8± 1.1kJ/mol106.1219 ±
0.0056
100-52-7*500
Isopropylidene anion C[C-]C282.4268.2± 2.0kJ/mol42.0803 ±
0.0024
*121408-19-3*0
2-Propen-3-ylium-1-ylidyne [CH][CH][C+]1791.11792.7± 2.6kJ/mol38.0474 ±
0.0024
161054-36-0*0
Fluorobenzene anion c1ccc(cc1)[F-]-18.3-30.2± 1.8kJ/mol96.1029 ±
0.0048
34561-55-2*0
m-Chlorophenylium c1(Cl)c[c+]ccc11160.11150.0± 2.6kJ/mol111.5481 ±
0.0049
127983-85-1*0
p-Chlorophenylium c1(Cl)cc[c+]cc11147.41137.9± 2.5kJ/mol111.5481 ±
0.0049
42766-43-8*0
o-Chlorophenylium c1(Cl)[c+]cccc11166.71157.4± 2.5kJ/mol111.5481 ±
0.0049
137963-70-3*0
1,3-Propanediyl [CH2]C[CH2]320.0308.2± 1.6kJ/mol42.0797 ±
0.0024
32458-33-6*1
Hydronium radical O.[H]-18.5-21.6± 2.1kJ/mol19.02322 ±
0.00037
12168-76-2*100
Iodobenzene cation c1ccc(cc1)[I+]1022.821007.38± 0.99kJ/mol204.0078 ±
0.0048
38406-85-8*0
Nitrobenzene c1ccc(cc1)[N+](=O)[O-]6.6± 1.4kJ/mol123.1094 ±
0.0049
98-95-3*500
Hydrogen chloride Cl-166.105± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*830
Nitromethane C[N+](=O)[O-]-114.15-112.97± 0.43kJ/mol61.0401 ±
0.0010
75-52-5*500
Acetic acid CC(=O)O-484.89± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*839
2,2,4-Trimethylpentane CC(C)CC(C)(C)C-224.4-258.9± 1.5kJ/mol114.2285 ±
0.0065
540-84-1*500
cis-1,2-Diiodoethene C(\I)=C\I217.41209.13± 0.35kJ/mol279.8462 ±
0.0016
590-26-1*0
trans-1,2-Diiodoethene C(\I)=C/I215.07207.68± 0.35kJ/mol279.8462 ±
0.0016
590-27-2*0
Norbornadiene C1C2C=CC1C=C2208.7± 1.2kJ/mol92.1384 ±
0.0056
121-46-0*500
2,3-Butanedione CC(=O)C(=O)C-365.64± 0.53kJ/mol86.0892 ±
0.0033
431-03-8*500
Succinic acid OC(=O)CCC(=O)O-802.5-824.7± 3.0kJ/mol118.0880 ±
0.0034
110-15-6*0
Nitric acid trihydrate O[N+](=O)[O-].O.O.O-1062.10-1055.25± 0.21kJ/mol117.0587 ±
0.0019
13444-83-2*500
1,2-Diiodoethane C(I)CI87.8073.13± 0.90kJ/mol281.8621 ±
0.0016
624-73-7*0
1,2-Diiodoethane C(I)CI9.26± 0.60kJ/mol281.8621 ±
0.0016
624-73-7*500
2-Butanone CCC(=O)C-267.89-273.38± 0.79kJ/mol72.1057 ±
0.0033
78-93-3*500
Tetraazatetrahedrane N12N3N1N23763.7757.2± 1.7kJ/mol56.02696 ±
0.00028
12596-63-3*0
Methyl acetate CC(=O)OC-445.68± 0.60kJ/mol74.0785 ±
0.0025
79-20-9*500
Acrolein C=CC=O-95.7± 1.4kJ/mol56.0633 ±
0.0024
107-02-8*500
Bicyclo[1.1.0]buta-1,3-dien-4-ylium-2-yl C12=[C]C2=[C+]12087.72097.6± 2.3kJ/mol48.0423 ±
0.0032
289679-91-0*0
Bicyclo[1.1.0]buta-1,3-dien-2-yl anion C12=[C]C2=[C-]1803.2810.8± 1.8kJ/mol48.0433 ±
0.0032
289679-89-6*0
Ethenedione anion O=C=C=[O-]-149.5-146.9± 2.3kJ/mol56.0207 ±
0.0017
77783-15-4*0
Urea NC(=O)N-317.78-333.38± 0.12kJ/mol60.05534 ±
0.00091
57-13-6*500
Formamide NC=O-251.03± 0.29kJ/mol45.04066 ±
0.00088
75-12-7*500
Chloryl ion O=[Cl+]=O1100.271097.61± 0.53kJ/mol67.4510 ±
0.0011
25052-55-5*0
Acetamide CC(=O)N-315.89± 0.54kJ/mol59.0672 ±
0.0017
60-35-5*500
Nitrosyl nitrite anion O=NON=[O-]-103.0-106.2± 2.8kJ/mol76.01223 ±
0.00091
*122413-35-8*1
Nitric acid monohydrate O[N+](=O)[O-].O-479.18-472.68± 0.19kJ/mol81.0282 ±
0.0012
13444-82-1*500
Hydrogen chloride Cl-166.565± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*839
1-Propynylium CC#[C+]1547.01545.1± 3.1kJ/mol39.0554 ±
0.0024
24858-94-4*0
1-Propenylium CC=[CH+]1232.01221.7± 1.7kJ/mol41.0713 ±
0.0024
50457-58-4*2
Acrylonitrile C=CC#N446.4440.9± 1.8kJ/mol53.0627 ±
0.0024
107-13-1*2
Acrylonitrile C=CC#N146.27153.93± 0.78kJ/mol53.0627 ±
0.0024
107-13-1*500
1,3-Butadiynyl anion [C]#CC#[C-]677.4686.5± 1.1kJ/mol48.0433 ±
0.0032
59158-53-1*0
Isocyanoethene C=C[N+]#[C-]544.1539.2± 1.8kJ/mol53.0627 ±
0.0024
14668-82-7*2
1-Propenylide CC=[CH-]204.1192.8± 1.8kJ/mol41.0723 ±
0.0024
65887-20-9*2
1-Isocyanoethylidene C[C][N+]#[C-]527.8523.1± 1.1kJ/mol53.0627 ±
0.0024
*498544-34-6*0
Dioxohydrazine O=NN=O172.92171.15± 0.14kJ/mol60.01228 ±
0.00062
16824-89-8*2
Acetonitrile CC#N40.60± 0.22kJ/mol41.0520 ±
0.0016
75-05-8*500
Hydrazoic acid cation N=[N+]=[N]1333.681328.00± 0.83kJ/mol43.02761 ±
0.00022
58852-14-5*0
Dioxohydrazine O=NN=O172.92171.15± 0.14kJ/mol60.01228 ±
0.00062
16824-89-8*0
1-Ethenylium-1-yl [C+]=C1507.01507.1± 2.1kJ/mol26.0367 ±
0.0016
80541-07-7*0
Cyclopropylium C1C[CH+]11104.61093.1± 2.4kJ/mol41.0713 ±
0.0024
1724-43-2*0
NON anion [N]O[N-]495.3492.8± 2.5kJ/mol44.01343 ±
0.00033
*227934-47-6*0
Hydrogen fluoride F-321.47± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*832
Tetraoxygen O=O.O=O104.4102.4± 3.5kJ/mol63.9976 ±
0.0012
12596-83-7*11
Vinylacetylene C=CC#C266.2± 2.1kJ/mol52.0746 ±
0.0032
689-97-4*500
Nitric acid O[N+](=O)[O-]-197.77± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*805
Perchloryl cation O=[Cl+](=O)[O]1252.11246.4± 2.5kJ/mol83.4504 ±
0.0013
23594-88-9*0
Hydrogen peroxide OO-193.163-187.346± 0.079kJ/mol34.01468 ±
0.00062
7722-84-1*500
Isocyanogen iodide anion IN=[C-]123.0125.2± 9.3kJ/mol152.92246 ±
0.00080
*66004-32-8*0
Vinylvinylidene C=CC=[C]690.4684.3± 2.7kJ/mol52.0746 ±
0.0032
148759-16-4*11
Dioxymethylidyne cation [C+]O[O]1388.21391.7± 3.2kJ/mol44.00895 ±
0.00100
*791121-04-5*101
Oxygen difluoride cation FO[F+]1292.121289.59± 0.66kJ/mol53.99566 ±
0.00030
39432-25-2*0
Cycloprop-1-enylium C1C=[C+]11502.21497.9± 2.2kJ/mol39.0554 ±
0.0024
117067-78-4*0
2-Cyclopropyn-1-ylidenemethyliumyl [C+]=C1C#C12239.62247.5± 2.3kJ/mol48.0423 ±
0.0032
289679-92-1*0
1-Buten-3-ynylium C#CC=[CH+]1483.01480.4± 1.7kJ/mol51.0661 ±
0.0032
84654-85-3*2
Carbon dioxide cation [C+](=O)=O1335.01335.5± 2.4kJ/mol44.00895 ±
0.00100
12181-61-2*1
Isocyanogen bromide BrN=[C]341.5335.8± 3.4kJ/mol105.9214 ±
0.0013
65997-98-0*0
Trihydrogen [H]1[H][H]1756.931754.146± 0.015kJ/mol3.02382 ±
0.00021
12184-91-7*2
Chlorodioxidanyl ClO[O]100.4699.36± 0.35kJ/mol67.4515 ±
0.0011
17376-09-9*0
Propenediylidene anion [CH][CH][C-]588.8590.0± 2.3kJ/mol38.0485 ±
0.0024
*161054-36-0*0
2-Cyclopropen-1-ylidenemethylium [CH+]=C1C=C11433.01429.2± 1.9kJ/mol51.0661 ±
0.0032
112936-36-4*1
Hydroxyoxoammoniumyl O[N+]=O984.1977.7± 1.8kJ/mol47.01293 ±
0.00061
80371-48-8*1
1,3-Cyclobutadien-1-ylium [C+]1=CC=C11472.91468.3± 1.9kJ/mol51.0661 ±
0.0032
81913-77-1*1
1,3-Cyclobutadien-1-yl anion [C-]1=CC=C1616.3611.8± 2.2kJ/mol51.0672 ±
0.0032
154675-37-3*0
Cyclobutenylium C1[CH+]C=C11037.31024.2± 3.4kJ/mol53.0820 ±
0.0032
12316-90-4*0
2-Hydroxyethenyl [CH]=CO143.9137.4± 1.1kJ/mol43.0446 ±
0.0016
108665-16-3*11
Butyraldehyde CCCC=O-235.97-239.49± 0.84kJ/mol72.1057 ±
0.0033
123-72-8*500
Propionic acid CCC(=O)O-505.46-509.60± 0.18kJ/mol74.0785 ±
0.0025
79-09-4*500
2-Hydroxyethenyl [CH]=CO147.2140.9± 1.3kJ/mol43.0446 ±
0.0016
108665-16-3*22
2-Hydroxyethenyl [CH]=CO150.6144.5± 1.6kJ/mol43.0446 ±
0.0016
108665-16-3*12
Bromoniumyl [BrH+]1098.071090.22± 0.14kJ/mol80.9114 ±
0.0010
12258-64-9*0
Isocyanogen chloride ClN=[C]314.5316.2± 2.4kJ/mol61.4701 ±
0.0012
75754-69-7*0
2-Oxo-1-ethylium-1-yl [CH+]C=O1289.41286.0± 2.5kJ/mol42.0361 ±
0.0016
214464-96-7*11
Deuterium hydride [H][2H]0.3280.319± 0.000kJ/mol3.022042 ±
0.000070
13983-20-5*0
Disilicon cation [Si][Si+]1350.21353.8± 2.8kJ/mol56.17045 ±
0.00060
12597-36-3*0
Dioxosilane cation O=[Si+]=O946.4946.4± 2.8kJ/mol60.08375 ±
0.00067
59458-81-0*0
Silicate O=[Si-]=O-477.3-478.1± 2.7kJ/mol60.08485 ±
0.00067
53095-83-3*0
Ethylene glycol OCCO-448.72-455.24± 0.37kJ/mol62.0678 ±
0.0018
107-21-1*500
Tetraoxidanyl OOO[O]53.046.0± 5.1kJ/mol65.0055 ±
0.0012
69696-93-1*2
Oxosilicate [Si-]=O-105.8-104.6± 2.6kJ/mol44.08545 ±
0.00042
12503-59-2*0
Cyclobutane C1CCC13.93± 0.40kJ/mol56.1063 ±
0.0032
287-23-0*590
Silicon carbide [Si]=[C]-71.9-72.9± 1.5kJ/mol40.09620 ±
0.00085
409-21-2*502
Silane cation [SiH4+]1104.91097.7± 1.7kJ/mol32.11671 ±
0.00041
34826-51-2*0
Hydrogen bromide Br-120.20± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*839
Silylium [SiH3+]989.6984.0± 1.2kJ/mol31.10877 ±
0.00037
41753-67-7*0
Dioxygen difluoride [O][O](F)F75.171.6± 3.6kJ/mol69.99561 ±
0.00060
183051-89-0*0
Silylidyne anion 248.6249.8± 1.2kJ/mol29.09399 ±
0.00031
68865-96-3*0
Ammonia anion [NH3-]94.387.2± 2.4kJ/mol17.03111 ±
0.00022
37353-00-7*0
Nitric acid O[N+](=O)[O-]-186.85± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*801
Peroxyhypochlorous acid cation OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*1
Oxalic acid C(=O)(C(=O)O)O-819.57-829.66± 0.42kJ/mol90.0349 ±
0.0020
144-62-7*500
Trifluorine FFF80.681.9± 2.6kJ/mol56.9952096 ±
0.0000015
73455-86-4*0
Dimethylamine CNC-43.43± 0.37kJ/mol45.0837 ±
0.0017
124-40-3*500
Methylcyclopropane CC1CC11.84± 0.59kJ/mol56.1063 ±
0.0032
594-11-6*590
Nitrous acid anion O[N-]=O-105.84-110.46± 0.78kJ/mol47.01403 ±
0.00061
256393-36-9*2
2,4-Hexadiyne CC#CC#CC319.0312.6± 1.0kJ/mol78.1118 ±
0.0048
2809-69-0*500
Iodine monochloride ICl-36.511-35.537± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*510
Carbon monoxide anion [C]#[O-]30.033.7± 2.3kJ/mol28.01065 ±
0.00085
12539-63-8*0
Trimethylenecyclopropane C=C1C(=C)C1=C454.1441.2± 1.8kJ/mol78.1118 ±
0.0048
3227-90-5*0
3,4-Bis(methylene)cyclobutene C=C1C=CC1=C355.4340.8± 1.8kJ/mol78.1118 ±
0.0048
5291-90-7*0
Trimethylamine CN(C)C-48.85± 0.87kJ/mol59.1103 ±
0.0025
75-50-3*500
Oxoethylidene anion [CH-]C=O86.983.6± 2.1kJ/mol42.0372 ±
0.0016
106543-38-8*1
1-Ethynylcyclobutene C1CC=C1C#C402.1387.8± 1.8kJ/mol78.1118 ±
0.0048
813466-25-0*0
3-Methyl-1,2-pentadien-4-yne C=C=C(C)C#C414.5403.3± 2.3kJ/mol78.1118 ±
0.0048
813466-14-7*0
1,3-Pentadiyne C#CC#CC384.9± 5.0kJ/mol64.0853 ±
0.0040
4911-55-1*500
Ethylamine CCN-74.09± 0.55kJ/mol45.0837 ±
0.0017
75-04-7*500
1-Propanamine CCCN-93.92-101.52± 0.41kJ/mol59.1103 ±
0.0025
107-10-8*500
2-Propanamine CC(C)N-101.67-112.28± 0.52kJ/mol59.1103 ±
0.0025
75-31-0*500
Paraformaldehyde C=O-179.2± 1.6kJ/mol30.02598 ±
0.00087
30525-89-4*500
Cyanogen anion N#CC#[N-]281.5284.7± 2.2kJ/mol52.0354 ±
0.0016
11118-88-0*0
Naphthalene c1ccc2ccccc2c194.5174.92± 0.60kJ/mol128.1705 ±
0.0080
91-20-3*500
Diisocyanogen cation [C]#[N+][N+]#[C-]1825.31828.1± 3.2kJ/mol52.0343 ±
0.0016
*78800-21-2*1
Biphenyl c1ccccc1c2ccccc2121.597.1± 1.1kJ/mol154.2078 ±
0.0096
92-52-4*500
Biphenyl c1ccccc1c2ccccc2121.597.1± 1.1kJ/mol154.2078 ±
0.0096
92-52-4*520
Isocyanic fluoride FN=[C]301.3303.1± 1.7kJ/mol45.01584 ±
0.00080
16992-26-0*0
Benzoic acid c1ccc(cc1)C(=O)O-367.38-384.80± 0.17kJ/mol122.1213 ±
0.0056
65-85-0*500
Helium hydride cation [He][H+]1350.1481348.258± 0.000kJ/mol5.009993 ±
0.000070
17009-49-3*0
Xenon hydride cation [Xe+][H]1038.041036.26± 0.89kJ/mol132.2974 ±
0.0200
37276-91-8*0
Carbon suboxide O=C=C=C=O-131.7-116.6± 1.3kJ/mol68.0309 ±
0.0025
504-64-3*500
Peroxyformate C(=O)O[O-]-320.6-326.5± 1.8kJ/mol61.0174 ±
0.0012
104960-05-6*2
Tribromide Br[Br-]Br-129.17± 0.25kJ/mol239.7125 ±
0.0030
14522-80-6*800
Peroxyformyl C(=O)O[O]-90.4-95.8± 1.8kJ/mol61.0168 ±
0.0012
56240-83-6*2
Oxygen atom tetracation [O+4]17719.20717721.064± 0.025kJ/mol15.99721 ±
0.00030
14127-65-2*0
Methylaminyliumyl C[N+]1388.31381.9± 2.3kJ/mol29.04071 ±
0.00083
56924-51-7*1
Hydrazoic acid N=[N+]=[N-]272.64± 0.48kJ/mol43.02816 ±
0.00022
7782-79-8*800
m-Benzyne c1[c]ccc[c]1614.6605.2± 1.4kJ/mol76.0960 ±
0.0048
1828-89-3*1
1-Propen-1-yl-3-ylidene [CH]C=[CH]656.6653.2± 1.1kJ/mol39.0559 ±
0.0024
84654-90-0*1
Oxygen atom heptacation [O+7]113369.48113371.34± 0.12kJ/mol15.99556 ±
0.00030
14274-89-6*0
Hydrogen iodide I-56.823± 0.090kJ/mol127.912410 ±
0.000076
10034-85-2*800
1-Hydroxyethyl C[CH]O-42.79-56.22± 0.57kJ/mol45.0605 ±
0.0017
2348-46-1*0
Tetraoxodinitrate anion O=N(=O)[N-](=O)=O-184.6-187.8± 2.4kJ/mol92.0116 ±
0.0012
63552-02-3*0
Formylimidogen C(=O)[N]245.3242.0± 3.3kJ/mol43.02478 ±
0.00086
42288-92-6*2
Tropylide [CH-]1C=CC=CC=C1261.1244.7± 2.0kJ/mol91.1310 ±
0.0056
34464-18-1*0
Hydrogen fluoride F-321.15± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*906
sec-Butylium CC[CH+]C792.9769.3± 1.7kJ/mol57.1137 ±
0.0033
16548-59-7*0
Water O-286.298-292.739± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*510
Nitrosyl nitrate O=NO[N+](=O)[O-]60.452.5± 1.9kJ/mol92.0111 ±
0.0012
15969-55-8*2
mu-Oxodichlorine cation Cl[O+]Cl1130.441126.84± 0.63kJ/mol86.9043 ±
0.0018
51174-96-0*0
Tetrabromomethane C(Br)(Br)(Br)Br49.3± 1.4kJ/mol331.6267 ±
0.0041
558-13-4*500
Tetraiodomethane C(I)(I)(I)I392.5± 8.0kJ/mol519.62858 ±
0.00081
507-25-5*500
Hydrazoic acid anion N=[N]=[N-]316.2310.1± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*2
mu-Oxodichlorate anion Cl[O-]Cl-147.8-147.7± 2.5kJ/mol86.9053 ±
0.0018
365546-30-1*0
Bromomethane CBr-55.93-58.94± 0.27kJ/mol94.9385 ±
0.0013
74-83-9*590
Trioxirane cation O1O[O+]11444.51442.3± 2.2kJ/mol47.99765 ±
0.00090
*153851-84-4*0
Hydrazine monohydrate NN.O-242.66± 0.19kJ/mol50.06052 ±
0.00053
7803-57-8*500
Water O-238.929-241.832± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*2
Difluorodioxidanium FO[O+]F1287.21283.0± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*2
Acetic acid CC(=O)O-484.87± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*833
Acetic acid CC(=O)O-484.92± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*850
Fluorine atom [F]77.25879.043± 0.047kJ/mol18.99840320 ±
0.00000050
14762-94-8*1
Nitrogen atom [N]470.579472.442± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*1
Hydrazoic acid N=[N+]=[N-]257.65± 0.48kJ/mol43.02816 ±
0.00022
7782-79-8*1000
Hydroxymethylene [CH]O112.68108.92± 0.27kJ/mol30.02598 ±
0.00087
19710-56-6*0
Iodine monochloride ICl-24.048± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*590
Cyclopentadiene C1C=CC=C1109.91± 0.59kJ/mol66.1011 ±
0.0040
542-92-7*590
Succinic acid OC(=O)CCC(=O)O-918.56-940.28± 0.13kJ/mol118.0880 ±
0.0034
110-15-6*500
Methyl acetate CC(=O)OC-394.22-413.09± 0.60kJ/mol74.0785 ±
0.0025
79-20-9*0
Methylene [CH2]391.060391.617± 0.097kJ/mol14.02658 ±
0.00081
2465-56-7*0
Peroxyhypochlorous acid anion OO[Cl-]-2.9-3.3± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*1
1,2-Dibromoethane C(Br)CBr-80.2± 1.2kJ/mol187.8612 ±
0.0026
106-93-4*500
2-Chloro ozone ClO([O])[O]266.0265.4± 3.7kJ/mol83.4509 ±
0.0013
*141801-66-3*0
Dioxofluorine anion [O]F[O-]155.9154.4± 2.5kJ/mol50.99775 ±
0.00060
*175861-93-5*0
Trihydrogen cation [H]1[H+][H]11110.3041106.697± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*2
1,3-Butadien-2-ol C=C(O)C=C-43.1-59.6± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*21
1,3-Butadien-2-ol C=C(O)C=C-53.8-69.1± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*1
Diatomic bromine cation Br[Br+]1060.321045.37± 0.23kJ/mol159.8075 ±
0.0020
12595-71-0*0
Acrolein C=CC=O-55.3-65.4± 1.2kJ/mol56.0633 ±
0.0024
107-02-8*0
1,2-Propadien-1-one cation [CH2+]=C=C=O1012.61011.2± 1.9kJ/mol54.0468 ±
0.0024
87612-93-9*0
1-Methylethenylium C[C+]=C995.3986.1± 2.0kJ/mol41.0713 ±
0.0024
50457-57-3*0
2-Propynal cation C#[C+]C=O1168.31167.2± 1.6kJ/mol54.0468 ±
0.0024
100815-70-1*0
Formaldehyde C=O-171.19± 0.59kJ/mol30.02598 ±
0.00087
50-00-0*800
Dihydrogen anion [H][H-]253.8254.7± 1.2kJ/mol2.01643 ±
0.00014
12184-89-3*0
Hydrogen peroxide cation O[OH+]930.99924.13± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*22
Bicyclo[1.1.0]buta-1,3-diene-2,4-diyl C12=[C]C2=[C]11047.191054.78± 0.69kJ/mol48.0428 ±
0.0032
12184-80-4*2
1-Methylethenyl anion C[C-]=C199.4188.3± 2.0kJ/mol41.0723 ±
0.0024
65887-19-6*0
2-Hydroxyethylium [CH2+]CO1024.51011.9± 2.0kJ/mol45.0600 ±
0.0017
38607-31-7*1
(Hydroxyimino)methyl [CH]=NO258.8252.7± 2.0kJ/mol44.03272 ±
0.00087
206442-92-4*2
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*11
Ammonium hydroxide [NH4+].[OH-]-366.712± 0.061kJ/mol35.04584 ±
0.00047
1336-21-6*1000
Cyanoacetylene cation C#CC#[N+]1495.431497.73± 0.62kJ/mol51.0462 ±
0.0024
85398-68-1*0
Isocyanoacetylene cation C#C[N+]#[C]1567.71570.3± 1.3kJ/mol51.0462 ±
0.0024
145076-03-5*0
1,3-Butadiyn-4-ylium-1-yl [C]#CC#[C+]2110.02120.6± 2.8kJ/mol48.0423 ±
0.0032
124708-46-9*0
Cyanoethynylium [C+]#CC#N1867.61874.3± 3.2kJ/mol50.0383 ±
0.0024
104233-69-4*0
Tetroxidane OOOO-34.1-44.6± 2.3kJ/mol66.0135 ±
0.0012
29683-94-1*0
1,3-Butadiyne-1,4-diyl [C]#CC#[C]1052.401062.37± 0.66kJ/mol48.0428 ±
0.0032
78015-07-3*1
Ethynylene [C]=[C]820.33826.90± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*2
Trioxygen difluoride FOOOF112.3107.1± 1.1kJ/mol85.99501 ±
0.00090
16829-28-0*0
Methyl formate COC=O-346.88-359.92± 0.84kJ/mol60.0520 ±
0.0017
107-31-3*0
3-Imino-2-propen-1-ylidene [CH]C=C=N530.6526.3± 1.2kJ/mol53.0627 ±
0.0024
916765-05-4*1
1-Propenylium CC=[CH+]1233.91223.4± 2.0kJ/mol41.0713 ±
0.0024
50457-58-4*1
Ethyl formate C(=O)OCC-375.3-394.0± 1.2kJ/mol74.0785 ±
0.0025
109-94-4*0
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]600.6596.3± 1.2kJ/mol53.0627 ±
0.0024
123416-74-0*1
1-Propenylide CC=[CH-]210.6199.4± 2.1kJ/mol41.0723 ±
0.0024
65887-20-9*1
Hydroxylamine NO-33.12-43.49± 0.45kJ/mol33.02996 ±
0.00037
7803-49-8*0
Trihydrogen [H]1[H][H]1215.9218.3± 1.1kJ/mol3.02382 ±
0.00021
12184-91-7*100
Oxygen atom dication [O++]4949.4594953.000± 0.013kJ/mol15.99830 ±
0.00030
14127-63-0*0
2-Butynylium CC#C[CH2+]1258.61251.3± 2.1kJ/mol53.0820 ±
0.0032
64235-83-2*1
iso-Hexane CCCC(C)C-180.33-203.99± 0.83kJ/mol86.1754 ±
0.0049
107-83-5*500
Acetaldehyde CC=O-187.04-191.76± 0.31kJ/mol44.0526 ±
0.0017
75-07-0*500
Tetraoxygen O=O.O=O69.865.1± 4.4kJ/mol63.9976 ±
0.0012
12596-83-7*21
Hypochloroperoxoous acid, hydroxy ester OOOCl49.542.5± 2.5kJ/mol84.4588 ±
0.0013
928652-99-7*2
Tetraoxygen O=O.O=O399.0393.4± 3.9kJ/mol63.9976 ±
0.0012
12596-83-7*23
Tetraoxygen O=O.O=O465.6459.6± 4.2kJ/mol63.9976 ±
0.0012
12596-83-7*24
2-Propen-1-ylium-1-ylidene C=C[C+]1373.11369.5± 2.0kJ/mol39.0554 ±
0.0024
88000-25-3*0
Acetoxy CC(=O)[O]-182.5-191.3± 1.2kJ/mol59.0440 ±
0.0017
13799-69-4*1
Nitrosyl nitrite anion O=NON=[O-]-100.2-103.4± 2.9kJ/mol76.01223 ±
0.00091
*122413-35-8*2
Deuteride [2H-]146.991148.904± 0.0021kJ/mol2.01465035791 ±
0.00000000040
14452-69-8*0
Acetoxy CC(=O)[O]-182.5-191.2± 1.2kJ/mol59.0440 ±
0.0017
13799-69-4*0
Hydrogen peroxide OO-129.472-135.458± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*2
1,2-Butadien-1-ylium-1-yl CC=C=[C+]1466.81461.7± 3.2kJ/mol52.0740 ±
0.0032
161054-21-3*0
Ethyl bromide CCBr-55.52-91.05± 0.26kJ/mol108.9651 ±
0.0019
74-96-4*500
Bicyclo[1.1.0]butan-3-id-1-yl C1[C-]2=C1C2524.6515.9± 2.7kJ/mol52.0751 ±
0.0032
131273-95-5*0
1,2-Cyclobutadiene C1C=C=C1586.0579.4± 2.3kJ/mol52.0746 ±
0.0032
50682-90-1*0
Dioxaziridine N1OO1277.5270.8± 1.9kJ/mol47.01348 ±
0.00061
67394-35-8*0
Vinyl iodide C=CI139.6130.8± 1.2kJ/mol153.9497 ±
0.0016
593-66-8*0
Acetylene anion C#[CH-]356.8356.7± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*0
1,2-Propadien-1-ylium-1-yl-3-ylidene [C]=C=[C+]1944.81952.7± 1.9kJ/mol36.0316 ±
0.0024
118090-85-0*0
Propionic acid CCC(=O)O-436.35-454.24± 0.60kJ/mol74.0785 ±
0.0025
79-09-4*0
Oxygen atom trication [O+3]10249.92910252.880± 0.018kJ/mol15.99775 ±
0.00030
14127-64-1*0
Difluorovinylidene cation [C+]=C(F)F1181.61183.0± 2.3kJ/mol62.0177 ±
0.0016
268566-71-8*0
Trihydrogen [H]1[H][H]1745.878743.094± 0.062kJ/mol3.02382 ±
0.00021
12184-91-7*1
Deuterium molecule cation [2H][2H+]1492.2861492.361± 0.000kJ/mol4.02765497609 ±
0.00000000080
12184-84-8*0
Chlorine atom [Cl]119.621121.228± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*1
Trioxodinitrate anion O=N-[N](=O)[O-]-87.3-93.0± 2.2kJ/mol76.01223 ±
0.00091
194856-62-7*1
Isocyanogen bromide anion BrN=[C-]105.3102.1± 4.6kJ/mol105.9220 ±
0.0013
*238754-53-5*0
Oxoniumyl ion [H][O+][H]978.470975.566± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*1
Dioxosilane O=[Si]=O-900.3-905.1± 1.5kJ/mol60.08430 ±
0.00067
7631-86-9*515
Bromodioxy BrO[O]118.2109.1± 4.3kJ/mol111.9028 ±
0.0012
67177-47-3*0
Oxosilyliumyl [Si+]=O1022.21023.4± 3.0kJ/mol44.08435 ±
0.00042
12359-18-1*0
Propylene cation CC=[CH2+]975.17961.64± 0.19kJ/mol42.0792 ±
0.0024
34504-10-4*0
Oxonium [OH3+]605.85599.10± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*2
Hydroxyoxoammoniumyl O[N+]=O1014.81008.4± 2.0kJ/mol47.01293 ±
0.00061
80371-48-8*2
Water trimer O.O.O-762.72-776.82± 0.20kJ/mol54.04584 ±
0.00099
31014-12-7*0
Nitrous acid anion O[N-]=O-105.4-109.4± 1.8kJ/mol47.01403 ±
0.00061
256393-36-9*1
Cyclopropane cation C1[CH2+]C11022.31006.8± 1.6kJ/mol42.0792 ±
0.0024
34496-93-0*0
Silyloxoniumylidene [SiH3][O+]1096.21089.9± 2.9kJ/mol47.10817 ±
0.00047
152720-17-7*1
Chlorodioxidenium ClO[O+]1215.11212.9± 6.3kJ/mol67.4510 ±
0.0011
64710-10-7*0
Hydroxysilylium [SiH2+]O600.2591.5± 2.9kJ/mol47.10817 ±
0.00047
66639-72-3*0
Fluorosyl fluoride FF[O]227.225.± 21.kJ/mol53.99621 ±
0.00030
86825-57-2*2
Difluorine cation F[F+]1514.3011514.475± 0.013kJ/mol37.9962578 ±
0.0000010
12184-86-0*0
Chloro(chlorooxy)methylene Cl[C]OCl101.1104.7± 4.8kJ/mol98.9155 ±
0.0020
479587-31-0*12
1,5-Hexadiyne C#CCCC#C385.8± 1.9kJ/mol78.1118 ±
0.0048
628-16-0*500
Oxygen atom octacation [O+8]197447.75197449.60± 0.12kJ/mol15.99501 ±
0.00030
21450-98-6*0
Iodine [I]198.109197.709± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*2
Dioxofluorine cation [O]F[O+]1667.01664.8± 2.8kJ/mol50.99665 ±
0.00060
223566-05-0*0
Acetylene C#C599.1598.9± 1.5kJ/mol26.0373 ±
0.0016
74-86-2*11
2-Oxo-1-ethylium-1-yl [CH+]C=O1292.01288.6± 2.4kJ/mol42.0361 ±
0.0016
214464-96-7*12
Bicyclo[3.1.0]hexa-1,3-diene C12CC1=CC=C2406.3390.7± 2.3kJ/mol78.1118 ±
0.0048
28425-23-2*0
3-Ethenylidenecyclobutene C=C=C1C=CC1406.4392.3± 2.3kJ/mol78.1118 ±
0.0048
813466-23-8*0
3,4-Hexadien-1-yne C#CC=C=CC418.5407.3± 2.6kJ/mol78.1118 ±
0.0048
194024-51-6*0
3-Ethynylcyclobutene C#CC1C=CC1421.6407.2± 2.4kJ/mol78.1118 ±
0.0048
175090-90-1*0
Dinitrogen dimer N#N.N#N-0.880.84± 0.67kJ/mol56.02696 ±
0.00028
154680-01-0*0
Polyoxymethylene C=O-170.88± 0.21kJ/mol30.02598 ±
0.00087
9002-81-7*500
Oxoethylidene anion [CH-]C=O92.389.0± 2.3kJ/mol42.0372 ±
0.0016
106543-38-8*2
Hydroxylamine NO-107.50± 0.62kJ/mol33.02996 ±
0.00037
7803-49-8*500
Peroxyhypochlorous acid cation OO[Cl+]1050.81045.2± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*2
Oxygen atom pentacation [O+5]28708.78828710.646± 0.053kJ/mol15.99666 ±
0.00030
14127-66-3*0
Tribromine cation Br[Br+]Br1035.91013.2± 2.6kJ/mol239.7115 ±
0.0030
33105-86-1*0
Dihydrogen cation [H][H+]1488.3641488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*2
1,2-Diphenylethane c1ccccc1CCc2ccccc2180.56142.07± 0.76kJ/mol182.2610 ±
0.0112
103-29-7*0
Isocyanogen cation [C]#[N+]C#N1654.11656.5± 1.4kJ/mol52.0343 ±
0.0016
133415-63-1*0
Chlorine trifluoride cation F[Cl+](F)F1053.41049.1± 2.4kJ/mol92.44736 ±
0.00090
478167-77-0*0
Carbon monoxide [C-]#[O+]-113.804-110.524± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*2
Biphenyl c1ccccc1c2ccccc2113.7± 1.1kJ/mol154.2078 ±
0.0096
92-52-4*590
Buckminsterfullerene c12c3c4c5c1c6c7c8c2c9c1c3c2c3c4c4c%10c5c5c6c6c7c7c%11c8c9c8c9c1c2c1c2524.32519.6± 6.5kJ/mol720.6420 ±
0.0480
99685-96-8*0
Buckminsterfullerene c12c3c4c5c1c6c7c8c2c9c1c3c2c3c4c4c%10c5c5c6c6c7c7c%11c8c9c8c9c1c2c1c2329.22338.6± 6.5kJ/mol720.6420 ±
0.0480
99685-96-8*500
Diisocyanogen cation [C]#[N+][N+]#[C-]1838.61842.5± 3.1kJ/mol52.0343 ±
0.0016
*78800-21-2*2
Cyclobutatrienyl [CH]1[C][C][C]1961.9965.4± 2.4kJ/mol49.0507 ±
0.0032
*99417-52-4*0
Dihydrogen [H][H]-0.000-0.058± 0.000kJ/mol2.01588 ±
0.00014
1333-74-0*2
1-Propen-1-yl-3-ylidene [CH]C=[CH]656.6653.2± 1.1kJ/mol39.0559 ±
0.0024
84654-90-0*0
1,2-Butadiene CC=C=C137.67138.73± 0.66kJ/mol54.0904 ±
0.0032
590-19-2*500
2-Cyclopropen-1-one cation O=[C+]1C=C11078.61075.5± 2.0kJ/mol54.0468 ±
0.0024
100815-68-7*0
Phenol cation c1ccc(cc1)[OH+]746.10727.30± 0.64kJ/mol94.1107 ±
0.0048
40932-22-7*0
Ethynol C#CO464.2460.9± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*15
Water O-286.300-292.741± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*509
Oxonium [OH3+]605.91599.10± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*1
Phenol anion c1ccc(cc1)[OH-]22.77.8± 4.9kJ/mol94.1118 ±
0.0048
38752-11-3*0
Isourea NC(=N)O-156.2-172.8± 2.6kJ/mol60.05534 ±
0.00091
4744-36-9*0
Hydroxyformyl O[C]=O-181.14-183.68± 0.44kJ/mol45.0174 ±
0.0010
2564-86-5*0
Perchloric acid cation O[Cl+](=O)(=O)=O1191.81182.2± 3.5kJ/mol100.4577 ±
0.0015
91712-47-9*0
Carbamoyl anion [NH2-]=C=O-81.9-87.8± 3.1kJ/mol44.03327 ±
0.00087
78944-69-1*0
Hydroxyformyl anion [C-](=O)O-319.53-321.39± 0.57kJ/mol45.0180 ±
0.0010
78944-70-4*0
Carbamoyl N=[C]O74.168.3± 2.7kJ/mol44.03272 ±
0.00087
*2858-51-7*0
Carbamoyl N=[C]O76.469.9± 3.2kJ/mol44.03272 ±
0.00087
*2858-51-7*2
Carbamoyl N=[C]O96.390.1± 3.2kJ/mol44.03272 ±
0.00087
*2858-51-7*3
Carbamoyl N=[C]O110.9104.8± 3.2kJ/mol44.03272 ±
0.00087
*2858-51-7*4
2-Hydroxyethylium [CH2+]CO1019.11007.0± 1.5kJ/mol45.0600 ±
0.0017
38607-31-7*0
Water dimer cation O.[OH2+]556.8546.4± 3.0kJ/mol36.03001 ±
0.00066
158061-35-9*0
Peroxychlorous acid O=ClOO96.290.6± 2.1kJ/mol84.4588 ±
0.0013
177778-92-6*0
Nitrosodioxaziridine O=NN1OO1413.9408.1± 3.2kJ/mol76.01168 ±
0.00091
132871-99-9*2
(Hydroxyimino)methyl [CH]=NO262.5257.1± 2.5kJ/mol44.03272 ±
0.00087
206442-92-4*3
(Hydroxyimino)methyl [CH]=NO281.4275.9± 2.5kJ/mol44.03272 ±
0.00087
206442-92-4*4
Hydrogen peroxide cation O[OH+]897.26890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*12
Dichloromethylene [C](Cl)Cl229.51230.69± 0.64kJ/mol82.9161 ±
0.0020
1605-72-7*0
Hydroperoxyimidogen OO[N]111.9109.0± 2.8kJ/mol47.01348 ±
0.00061
877456-58-1*2
Dichlorovinylidene [C]=C(Cl)Cl421.7424.9± 3.0kJ/mol94.9268 ±
0.0024
20394-25-6*0
Tetraoxidanyl OOO[O]76.769.5± 6.1kJ/mol65.0055 ±
0.0012
69696-93-1*1
Dioxymethylene [CH]O[O]341.8339.8± 3.0kJ/mol45.0174 ±
0.0010
438586-67-5*0
Formaldoxime C=NO30.519.9± 1.3kJ/mol45.04066 ±
0.00088
75-17-2*0
2-Oxo-1-ethylium-1-yl [CH+]C=O1289.41286.7± 2.5kJ/mol42.0361 ±
0.0016
214464-96-7*1
1-Methoxyethenol C=C(O)OC-284.9-303.3± 1.7kJ/mol74.0785 ±
0.0025
4453-91-2*0
Chlorovinylidene [C]=CCl428.0429.8± 3.0kJ/mol60.4820 ±
0.0018
70277-82-6*0
Benzaldehyde cation c1ccc(cc1)C=[O+]896.9880.2± 1.9kJ/mol106.1214 ±
0.0056
80226-59-1*0
Bromine atom [Br]162.002155.939± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*2
Benzaldehyde anion c1ccc(cc1)C=[O-]-60.2-77.8± 1.2kJ/mol106.1225 ±
0.0056
34473-57-9*0
Bicyclo[1.1.0]buta-1,3-diene-2,4-diyl C12=[C]C2=[C]11133.11140.9± 2.7kJ/mol48.0428 ±
0.0032
12184-80-4*1
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*0
Trihydrogen [H]1[H][H]1477.4474.7± 2.3kJ/mol3.02382 ±
0.00021
12184-91-7*201
Cyanogen chloride cation Cl[C+]#N1326.051327.38± 0.97kJ/mol61.4696 ±
0.0012
37612-72-9*0
2-Cyclopropyn-1-ylidene C1=C=C=1898.9905.8± 1.6kJ/mol36.0321 ±
0.0024
102508-15-6*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]665.7662.2± 2.0kJ/mol39.0559 ±
0.0024
84654-90-0*13
Ethynol anion C#[C-]O163.5165.0± 3.3kJ/mol42.0372 ±
0.0016
864971-50-6*0
Iodine monochloride ICl-36.511-35.537± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*500
Ethylene anion C=[CH2-]232.0225.5± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*0
Nitrogen atom [N]700.555702.458± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*2
Oxirene C1=CO1273.18271.02± 0.92kJ/mol42.0367 ±
0.0016
157-18-6*0
Peroxychlorous acid O=ClOO102.396.2± 3.7kJ/mol84.4588 ±
0.0013
177778-92-6*3
3H-diazirin-3-ylidene-methylene [C]=C1N=N1837.3839.9± 2.3kJ/mol52.0349 ±
0.0016
204253-88-3*0
Ethane anion C[CH3-]41.926.6± 4.4kJ/mol30.0696 ±
0.0017
54064-82-3*0
1-Cyanoethylidene C[C]C#N437.5433.7± 1.5kJ/mol53.0627 ±
0.0024
498544-34-6*0
Difluorodioxidanium FO[O+]F1283.71280.0± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*0
Nitrosodioxaziridine O=NN1OO1415.3409.5± 2.8kJ/mol76.01168 ±
0.00091
132871-99-9*3
Cyanic acid cation [OH+]C#N1135.71133.2± 2.9kJ/mol43.02423 ±
0.00086
59780-31-3*0
Diazene N=N207.12199.98± 0.41kJ/mol30.02936 ±
0.00020
3618-05-1*1
Ethynol C#CO406.4403.2± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*12
Hydrazoic acid N=[N+]=[N-]261.51± 0.65kJ/mol43.02816 ±
0.00022
7782-79-8*500
Difluorodioxidane anion FO[O-]F-251.-251.± 28.kJ/mol69.99615 ±
0.00060
*7783-45-1*0
3-Imino-2-propen-1-ylidene [CH]C=C=N530.6526.3± 1.2kJ/mol53.0627 ±
0.0024
916765-05-4*0
Hydrogen cyanide anion [CH-]#N129.513129.035± 0.089kJ/mol27.02593 ±
0.00081
12334-27-9*0
3-Imino-2-propen-1-ylidene [CH]C=C=N571.8567.0± 1.6kJ/mol53.0627 ±
0.0024
916765-05-4*2
1-Propen-1-yl-3-ylidene [CH]C=[CH]699.2696.2± 3.4kJ/mol39.0559 ±
0.0024
84654-90-0*2
Water O-238.644-241.832± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*1
Dichlorine cation Cl[Cl+]1108.3071108.286± 0.0062kJ/mol70.9049 ±
0.0018
12595-90-3*0
Fluoromethane cation C[F+]981.80974.30± 0.62kJ/mol34.03237 ±
0.00083
59122-96-2*0
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]600.6596.3± 1.2kJ/mol53.0627 ±
0.0024
123416-74-0*0
Fluorosyl fluoride anion FF[O-]-147.1-146.8± 3.0kJ/mol53.99675 ±
0.00030
*86825-57-2*0
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]634.5630.4± 1.6kJ/mol53.0627 ±
0.0024
123416-74-0*2
Cyanogen iodide cation I[C+]#N1271.41271.2± 1.6kJ/mol152.92136 ±
0.00080
34749-78-5*0
Carbon [C]2.3901.862± 0.044kJ/mol12.01070 ±
0.00080
7440-44-0*501
Fluoromethane CF-245.76± 0.45kJ/mol34.03292 ±
0.00083
593-53-3*590
Diazene anion N=[NH-]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
100429-75-2*0
Diazoethenylidene cation [N]=[N]=C=[C+]1771.21773.2± 3.5kJ/mol52.0343 ±
0.0016
*130760-10-0*0
Dioxohydrazine O=NN=O192.3188.7± 1.8kJ/mol60.01228 ±
0.00062
16824-89-8*1
Trihydrogen [H]1[H][H]1254.5250.7± 1.2kJ/mol3.02382 ±
0.00021
12184-91-7*200
Imidogen [NH]358.74358.79± 0.16kJ/mol15.014680 ±
0.000099
13774-92-0*1
Dicarbon monoxide [C]=C=O377.12381.16± 0.83kJ/mol40.0208 ±
0.0016
12071-23-7*0
1-Methylethylidene C[C]C315.91303.01± 0.99kJ/mol42.0797 ±
0.0024
40852-89-9*0
Diazene anion N=[NH-]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
100429-75-2*1
Carbonylmethyloxonium CO[C+]=O561.3553.1± 3.2kJ/mol59.0435 ±
0.0017
24434-00-2*0
Chloromethane CCl-106.10-102.14± 0.25kJ/mol50.4872 ±
0.0012
74-87-3*590
2-Cyanovinyl [CH]=CC#N448.0445.5± 1.2kJ/mol52.0547 ±
0.0024
189141-20-6*0
2-Cyanovinylium [CH+]=CC#N1517.21515.1± 1.8kJ/mol52.0542 ±
0.0024
85398-67-0*2
2-Cyanovinyl anion [CH-]=CC#N263.8261.4± 1.8kJ/mol52.0553 ±
0.0024
*85398-67-0*0
Methoxyoxomethyl CO[C]=O-152.6-160.3± 1.5kJ/mol59.0440 ±
0.0017
16481-04-2*0
mu-Oxodioxodinitrogen O=NO[N+]=O984.0981.1± 3.2kJ/mol76.01113 ±
0.00091
87950-63-8*1
2-Isocyanovinyl [CH]=C[N+]#[C-]543.2541.8± 1.7kJ/mol52.0547 ±
0.0024
225798-14-1*0
Propylidene anion CC[CH-]300.8286.6± 3.2kJ/mol42.0803 ±
0.0024
*121408-55-7*0
Fluorosyl fluoride cation FF[O+]1413.11413.5± 3.5kJ/mol53.99566 ±
0.00030
*86825-50-5*0
Cyanomethyliumyl [CH+]C#N1506.71508.2± 2.3kJ/mol39.0355 ±
0.0016
34447-38-6*0
Cyanomethylene anion [CH-]C#N286.6287.1± 1.5kJ/mol39.0366 ±
0.0016
12373-24-9*0
Cyanomethylene [CH]C#N479.9483.3± 1.1kJ/mol39.0361 ±
0.0016
2612-62-6*0
1,3-Butadiyne-1,4-diyl [C]#CC#[C]1084.141093.95± 0.84kJ/mol48.0428 ±
0.0032
78015-07-3*2
Methoxyoxomethyl CO[C]=O-151.9-160.9± 2.2kJ/mol59.0440 ±
0.0017
16481-04-2*2
Isocyanomethyliumyl [CH+][N+]#[C-]1505.91507.8± 3.3kJ/mol39.0355 ±
0.0016
99045-54-2*0
Isocyanomethylene anion [CH-][N+]#[C-]400.6401.3± 2.1kJ/mol39.0366 ±
0.0016
144141-01-5*0
Isocyanomethylene [CH][N+]#[C-]582.3584.6± 1.7kJ/mol39.0361 ±
0.0016
78694-65-2*0
Bromomethane cation C[Br+]996.91981.99± 0.27kJ/mol94.9380 ±
0.0013
12538-70-4*0
3-Oxo-1,2-propadien-1-ylium-1-yl [C+]=C=C=O1379.91385.2± 3.9kJ/mol52.0310 ±
0.0024
151455-13-9*0
3-Oxo-1,2-propadienylidene anion [C-]=C=C=O223.9229.7± 3.6kJ/mol52.0320 ±
0.0024
109292-50-4*0
Pentachloroethylium C(Cl)(Cl)(Cl)[C+](Cl)Cl836.2834.5± 3.3kJ/mol201.2844 ±
0.0048
*7094-17-9*0
Nitrosyl nitrate O=NO[N+](=O)[O-]48.340.4± 1.8kJ/mol92.0111 ±
0.0012
15969-55-8*0
Methoxyoxomethyl CO[C]=O-151.7-159.8± 2.2kJ/mol59.0440 ±
0.0017
16481-04-2*3
Cyanic acid anion [OH-]C#N-9.2-9.6± 3.1kJ/mol43.02533 ±
0.00086
58199-47-6*0
Hydrogen isocyanide anion [C-]=N191.60191.79± 0.33kJ/mol27.02593 ±
0.00081
96913-22-3*0
Diazanide N[NH-]249.3239.3± 3.1kJ/mol31.03785 ±
0.00025
25415-88-7*0
Propylidyne CC[C]492.5482.8± 1.2kJ/mol41.0718 ±
0.0024
85056-54-8*0
Pentachloroethanide C(Cl)(Cl)(Cl)[C-](Cl)Cl-283.7-282.2± 3.9kJ/mol201.2854 ±
0.0048
263019-83-6*0
O--HH Complex [H][H].[O]247.2248.2± 2.0kJ/mol18.01528 ±
0.00033
*7732-18-5*102
Fluorosyl fluoride FF[O]192.8193.3± 2.3kJ/mol53.99621 ±
0.00030
86825-57-2*0
Oxoethylidene anion [CH-]C=O86.984.2± 2.1kJ/mol42.0372 ±
0.0016
106543-38-8*0
Nitrosodioxaziridine O=NN1OO1413.7408.2± 1.8kJ/mol76.01168 ±
0.00091
132871-99-9*0
1,3-Cyclobutadiene cation C1=CC=[CH+]11215.51207.2± 3.1kJ/mol52.0740 ±
0.0032
34531-09-4*0
Acetyloxoniumylidene CC(=O)[O+]891.9883.5± 3.0kJ/mol59.0435 ±
0.0017
67057-47-0*1
Formic acid cation [CH+](=O)O721.89715.36± 0.26kJ/mol46.0248 ±
0.0010
50614-05-6*0
2-Methyl-2-cyclopropen-1-ylidene CC1=C[C]1447.9441.7± 1.2kJ/mol52.0746 ±
0.0032
185841-59-2*0
2-Methyl-2-cyclopropen-1-ylidene CC1=C[C]1670.5664.5± 2.8kJ/mol52.0746 ±
0.0032
185841-59-2*1
Ethynol C#CO95.3192.82± 0.80kJ/mol42.0367 ±
0.0016
32038-79-2*0
Iodomethane cation C[I+]944.80935.40± 0.18kJ/mol141.93844 ±
0.00083
12538-72-6*0
Hydroperoxonium [OH2+]O762.5752.7± 2.0kJ/mol35.02207 ±
0.00064
70850-26-9*2
Isocyanomethane C[N+]#[C-]146.5± 2.2kJ/mol41.0520 ±
0.0016
593-75-9*500
Peroxyformic acid C(=O)OO-279.24-288.38± 0.88kJ/mol62.0248 ±
0.0012
107-32-4*0
Diazene cation N=[NH+]1132.491125.55± 0.64kJ/mol30.02881 ±
0.00020
76986-17-9*1
Vinylvinylidene C=CC=[C]494.1488.7± 1.8kJ/mol52.0746 ±
0.0032
148759-16-4*0
Vinylvinylidene C=CC=[C]690.4684.6± 2.7kJ/mol52.0746 ±
0.0032
148759-16-4*1
Ethylidene [CH]C361.20354.22± 0.51kJ/mol28.0532 ±
0.0016
4218-50-2*0
Vinylvinylidene C=CC=[C]695.4688.9± 3.3kJ/mol52.0746 ±
0.0032
148759-16-4*12
Vinylvinylidene cation C=CC=[C+]1429.71424.4± 2.1kJ/mol52.0740 ±
0.0032
161054-20-2*0
Vinylvinylidene cation C=CC=[C+]1437.71432.0± 2.7kJ/mol52.0740 ±
0.0032
161054-20-2*2
Vinylvinylidene anion C=CC=[C-]405.7398.9± 2.1kJ/mol52.0751 ±
0.0032
167386-49-4*0
Vinylvinylidene anion C=CC=[C-]423.2416.6± 2.7kJ/mol52.0751 ±
0.0032
167386-49-4*2
Ethenol C=CO-113.11-123.49± 0.52kJ/mol44.0526 ±
0.0017
557-75-5*0
Acetone enol C=C(O)C-152.0-168.8± 1.1kJ/mol58.0791 ±
0.0025
29456-04-0*0
1,2-Butadien-1-ylidene CC=C=[C]511.7506.2± 2.1kJ/mol52.0746 ±
0.0032
119908-55-3*0
1,2-Butadien-1-ylidene CC=C=[C]651.7646.2± 3.7kJ/mol52.0746 ±
0.0032
119908-55-3*1
Dioxodiazoxane O=NON=O93.088.1± 1.3kJ/mol76.01168 ±
0.00091
122413-35-8*0
Formic acid anion [CH-](=O)O-256.2-262.3± 1.8kJ/mol46.0259 ±
0.0010
19066-82-1*0
Nitrogen atom anion [N-]487.6489.9± 2.5kJ/mol14.007289 ±
0.000070
17778-87-9*0
Hydrogen peroxide cation O[OH+]931.01924.13± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*21
2-Hydroxyethyl [CH2]CO-13.37-26.63± 0.56kJ/mol45.0605 ±
0.0017
4422-54-2*0
Vinyl alcohol cation C=C[OH+]778.7767.7± 1.3kJ/mol44.0520 ±
0.0017
57239-63-1*0
Peroxyformyl C(=O)O[O]-100.37-105.47± 0.92kJ/mol61.0168 ±
0.0012
56240-83-6*0
Hydrazine anion N[NH2-]232.3217.9± 4.1kJ/mol32.04579 ±
0.00031
65391-88-0*0
(Formyloxy)methyl O=CO[CH2]-151.8-159.9± 1.3kJ/mol59.0440 ±
0.0017
3122-12-1*0
1,2,3-Butatrien-1-ylium C=C=C=[CH+]1271.71269.9± 1.1kJ/mol51.0661 ±
0.0032
81932-79-8*0
Nitrogen sesquioxide cation O=N-[N+](=O)[O]1027.71023.7± 4.8kJ/mol76.01113 ±
0.00091
*10544-73-7*0
Carboxymethyl [CH2]C(=O)O-227.2-237.0± 1.2kJ/mol59.0440 ±
0.0017
2887-46-9*0
Oxiranylidene C1[C]O1213.5209.2± 1.4kJ/mol42.0367 ±
0.0016
50983-85-2*0
Tetraoxidanyl OOO[O]2.00.2± 3.0kJ/mol65.0055 ±
0.0012
69696-93-1*0
Hydrobromate ion [BrH-]-5.6-12.1± 4.3kJ/mol80.9125 ±
0.0010
85532-97-4*0
2-Methoxy-2-oxoethyl [CH2]C(=O)OC-203.4-218.6± 1.6kJ/mol73.0706 ±
0.0025
54668-31-4*0
1-Buten-3-yn-1-yl C#CC=[CH]547.17544.66± 0.88kJ/mol51.0666 ±
0.0032
2810-61-9*0
1-Buten-3-ynylium C#CC=[CH+]1482.31480.1± 1.5kJ/mol51.0661 ±
0.0032
84654-85-3*0
But-1-en-3-yn-1-ide C#CC=[CH-]419.7419.1± 1.3kJ/mol51.0672 ±
0.0032
119611-65-3*0
Methoxyethene C=COC-89.3-106.6± 1.1kJ/mol58.0791 ±
0.0025
107-25-5*0
Imidogen [NH]509.34509.39± 0.17kJ/mol15.014680 ±
0.000099
13774-92-0*2
Hypochloroperoxoous acid, hydroxy ester OOOCl49.242.4± 1.9kJ/mol84.4588 ±
0.0013
928652-99-7*0
3-Buten-1-ynylium C=CC#[C+]1572.51570.1± 1.7kJ/mol51.0661 ±
0.0032
103928-84-3*0
Chlorine pentafluoride anion F[Cl-](F)(F)(F)F-619.3-622.7± 4.4kJ/mol130.44526 ±
0.00090
184851-42-1*0
Chlorine atom [Cl]130.176131.783± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*2
(Acetyloxy)methyl CC(=O)O[CH2]-200.6-214.3± 1.6kJ/mol73.0706 ±
0.0025
2887-49-2*0
Fluoroform C(F)(F)F-704.46± 0.43kJ/mol70.01385 ±
0.00080
75-46-7*590
3-Methylene-1-cyclopropen-1-ylium C=C1C=[C+]11398.61395.3± 1.8kJ/mol51.0661 ±
0.0032
117469-28-0*0
Hydroxyamidogen [NH]O101.3794.53± 0.81kJ/mol32.02202 ±
0.00034
13940-32-4*0
Isocyanogen chloride anion ClN=[C-]102.8107.2± 3.9kJ/mol61.4707 ±
0.0012
923019-39-0*0
2-Butynylium CC#C[CH2+]1085.61077.4± 1.6kJ/mol53.0820 ±
0.0032
64235-83-2*0
2-Cyclopropen-1-ylidenemethylium [CH+]=C1C=C11346.31343.7± 1.8kJ/mol51.0661 ±
0.0032
112936-36-4*0
1,2-Difluoroethene C(F)=CF-302.90-309.00± 0.90kJ/mol64.0341 ±
0.0016
1691-13-0*0
1,2-Propadien-1-yl-3-ylidene anion [C]=C=[C-]622.0629.4± 1.3kJ/mol36.0326 ±
0.0024
109292-47-9*1
Chloromethylene [CH]Cl320.27320.55± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*0
Methoxyethene C=COC-81.9-99.0± 2.4kJ/mol58.0791 ±
0.0025
107-25-5*1
1,3-Cyclobutadien-1-ylium [C+]1=CC=C11388.21383.2± 1.9kJ/mol51.0661 ±
0.0032
81913-77-1*0
Hydroxyaminylium [NH+]O1019.51012.4± 2.5kJ/mol32.02147 ±
0.00034
66097-71-0*0
2-Hydroxyethenyl [CH]=CO138.01132.18± 0.92kJ/mol43.0446 ±
0.0016
108665-16-3*0
C=O-C cation [C]=[O+][C]1585.81592.9± 2.7kJ/mol40.0203 ±
0.0016
83483-98-1*0
Cyclobutenide C1[CH-]C=C1318.8306.3± 3.7kJ/mol53.0830 ±
0.0032
60211-42-9*0
Isocyanogen chloride cation ClN=[C+]1480.81482.1± 3.9kJ/mol61.4696 ±
0.0012
956475-91-5*0
Methyl nitrite CON=O-52.40-64.36± 0.89kJ/mol61.0401 ±
0.0010
624-91-9*1
Difluorovinylidene anion [C-]=C(F)F-88.2-87.1± 2.3kJ/mol62.0188 ±
0.0016
107693-92-5*0
Methane anion [CH4-]27.319.4± 5.1kJ/mol16.04301 ±
0.00085
27680-53-1*0
Phenylperoxy cation c1ccc(cc1)O[O+]1018.21001.2± 3.1kJ/mol109.1022 ±
0.0049
956036-17-2*0
Phenylperoxy anion c1ccc(cc1)O[O-]-39.6-56.6± 3.3kJ/mol109.1032 ±
0.0049
*956036-17-2*0
Ethoxyethene C=COCC-117.7-136.2± 1.5kJ/mol72.1057 ±
0.0033
109-92-2*0
Oxonium [OH3+]-285.826± 0.026kJ/mol19.02267 ±
0.00037
13968-08-6*800
Dibromovinylidene [C]=C(Br)Br511.0499.9± 4.1kJ/mol183.8294 ±
0.0026
261771-36-2*0
Fluorovinylidene [C]=CF298.9300.1± 3.1kJ/mol44.0277 ±
0.0016
70302-00-0*0
Methyl nitrite CON=O-88.75± 0.56kJ/mol61.0401 ±
0.0010
624-91-9*500
Fulvene cation [CH2+]=C1C=CC=C11043.41027.6± 2.7kJ/mol78.1113 ±
0.0048
34504-75-1*0
Fulvene anion [CH2-]=C1C=CC=C1191.2176.1± 4.0kJ/mol78.1124 ±
0.0048
34504-63-7*0
Isocyanogen bromide cation BrN=[C+]1470.21464.5± 5.9kJ/mol105.9209 ±
0.0013
238754-53-5*0
Methylaminyliumyl C[N+]1388.31381.9± 2.3kJ/mol29.04071 ±
0.00083
56924-51-7*0
Methanediol C(O)O-379.36-392.75± 0.92kJ/mol48.0413 ±
0.0010
463-57-0*0
Ethyl nitrite CCON=O-80.3-98.5± 1.9kJ/mol75.0666 ±
0.0017
109-95-5*2
Silicon cation [Si+]1237.041241.17± 0.64kJ/mol28.08495 ±
0.00030
14067-07-3*0
Silicon anion [Si-]316.46319.44± 0.64kJ/mol28.08605 ±
0.00030
14337-02-1*0
Ethyl nitrite CCON=O-78.3-97.2± 1.9kJ/mol75.0666 ±
0.0017
109-95-5*3
Bromovinylidene [C]=CBr466.6460.6± 3.8kJ/mol104.9333 ±
0.0019
161957-27-3*0
Disilicon anion [Si][Si-]375.5379.4± 1.9kJ/mol56.17155 ±
0.00060
64236-73-3*0
Nitrato O=[N+](O)O1290.621285.91± 0.86kJ/mol62.00439 ±
0.00090
133057-96-2*0
Diazene cation N=[NH+]1132.491125.83± 0.64kJ/mol30.02881 ±
0.00020
76986-17-9*0
Difluorophosgene anion C(F)(F)=[O-]-602.3-604.2± 3.3kJ/mol66.00745 ±
0.00085
474815-26-4*0
Ethoxyethene C=COCC-111.3-135.1± 2.3kJ/mol72.1057 ±
0.0033
109-92-2*21
Trioxidaniumyl O[O+]O925.5916.6± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*0
Isocyanic fluoride anion FN=[C-]74.375.9± 5.7kJ/mol45.01639 ±
0.00080
357426-78-9*0
Propyl nitrite CCCON=O-96.1-119.9± 1.8kJ/mol89.0932 ±
0.0025
543-67-9*0
Diiodine cation I[I+]963.523960.408± 0.018kJ/mol253.808391 ±
0.000060
28712-14-3*0
Propyl nitrite CCCON=O-95.8-120.4± 2.5kJ/mol89.0932 ±
0.0025
543-67-9*2
Propyl nitrite CCCON=O-96.0-120.5± 2.5kJ/mol89.0932 ±
0.0025
543-67-9*3
Propyl nitrite CCCON=O-95.2-119.8± 2.5kJ/mol89.0932 ±
0.0025
543-67-9*4
Cyanomethylium [CH2+]C#N1256.771254.13± 0.74kJ/mol40.0435 ±
0.0016
34430-18-7*0
Fluoro(fluorooxy)methylene F[C]OF-134.8-136.0± 1.3kJ/mol66.00691 ±
0.00085
479587-30-9*0
Silicon carbide anion [Si][C-]510.0514.6± 4.4kJ/mol40.09675 ±
0.00085
86017-99-4*0
Diazenide N#N.[H-]175.6176.7± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*0
Propyl nitrite CCCON=O-95.1-119.4± 2.5kJ/mol89.0932 ±
0.0025
543-67-9*5
Ethoxyethene C=COCC-110.7-132.9± 2.6kJ/mol72.1057 ±
0.0033
109-92-2*1
Silicon carbide [Si]=[C]-70.5-71.5± 1.5kJ/mol40.09620 ±
0.00085
409-21-2*500
Propyl nitrite CCCON=O-93.2-118.2± 2.5kJ/mol89.0932 ±
0.0025
543-67-9*6
Chlorohydroxymethyl [CH](Cl)O-54.7-60.5± 1.1kJ/mol65.4787 ±
0.0012
147139-06-8*0
Propyl nitrite CCCON=O-92.9-118.1± 2.5kJ/mol89.0932 ±
0.0025
543-67-9*7
Oxoiodonium I[O+]1066.11064.1± 1.9kJ/mol142.90332 ±
0.00030
81182-81-2*0
Ethoxyethene C=COCC-108.7-131.9± 2.3kJ/mol72.1057 ±
0.0033
109-92-2*11
Propyl nitrite CCCON=O-91.5-116.4± 2.8kJ/mol89.0932 ±
0.0025
543-67-9*8
Peroxyhypochlorous acid cation OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*0
Oxiranylium C1[CH+]O1901.2893.2± 1.5kJ/mol43.0441 ±
0.0016
57789-76-1*0
Dioxoethylium C(=O)[C+]=O688.2689.5± 3.1kJ/mol57.0276 ±
0.0017
*1994332-01-2*0
Silylene [SiH2]272.5270.8± 1.2kJ/mol30.10138 ±
0.00033
13825-90-6*0
Ethanedial anion C(=O)[C-]=O-189.1-190.6± 3.3kJ/mol57.0287 ±
0.0017
1994332-01-2*0
Isoformyl anion [C][O].[H-]55.758.4± 1.8kJ/mol29.01859 ±
0.00086
81747-63-9*0
1,2-Dibromoethene C(Br)=CBr121.2101.1± 2.0kJ/mol185.8453 ±
0.0026
540-49-8*0
Oxiranyl anion C1[CH-]O1121.2113.3± 1.5kJ/mol43.0452 ±
0.0016
72722-59-9*0
Disilane cation [SiH3][SiH3+]1030.51017.7± 2.3kJ/mol62.21809 ±
0.00073
96301-43-8*0
Hydrogen peroxide OO-190.75± 0.30kJ/mol34.01468 ±
0.00062
7722-84-1*800
Propynylidene [CH]=C=[CH]597.6599.4± 1.3kJ/mol38.0480 ±
0.0024
67152-18-5*2
Hydroxyoxoethenylium O[C+]=C=O866.2865.0± 3.5kJ/mol57.0276 ±
0.0017
*1994332-00-1*0
Ethynediolide O[C-]=C=O-133.1-134.2± 3.5kJ/mol57.0287 ±
0.0017
1994332-00-1*0
Phosgene cation C(=[O+])(Cl)Cl897.1896.0± 1.7kJ/mol98.9150 ±
0.0020
73249-38-4*0
Chlorous acid cation O[Cl+]=O996.6991.6± 3.1kJ/mol68.4589 ±
0.0011
*99559-66-7*0
Phosgene C(=O)(Cl)Cl-242.74± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*501
Cyclopropylidene [C]1CC1474.87466.84± 0.85kJ/mol40.0639 ±
0.0024
2143-70-6*0
Phosgene C(=O)(Cl)Cl-255.44-242.74± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*502
Chlorine trifluoride anion F[Cl-](F)F-480.4-481.9± 3.6kJ/mol92.44846 ±
0.00090
184289-50-7*0
Trihydrogen [H]1[H][H]1745.878743.199± 0.062kJ/mol3.02382 ±
0.00021
12184-91-7*0
Chlorine chlorite ClO[Cl]=O168.6166.4± 1.3kJ/mol102.9042 ±
0.0019
105206-44-8*0
Chloro(chlorooxy)methylene Cl[C]OCl73.573.9± 3.6kJ/mol98.9155 ±
0.0020
479587-31-0*0
Ethynol C#CO409.4406.3± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*13
Oxoethylidene [CH]C=O261.1258.3± 1.1kJ/mol42.0367 ±
0.0016
39920-84-8*0
Hydroxysilyl anion [SiH2-]O-218.9-226.8± 2.8kJ/mol47.10927 ±
0.00047
78450-47-2*2
Chloro(chlorooxy)methylene Cl[C]OCl98.105.± 15.kJ/mol98.9155 ±
0.0020
479587-31-0*1
(Methylamino)methyl anion CN[CH2-]201.2184.3± 3.2kJ/mol44.0763 ±
0.0017
*31277-25-5*0
Chloroethane CCCl-134.30-135.92± 0.27kJ/mol64.5138 ±
0.0019
75-00-3*500
2,2,4-Trimethylpentane CC(C)CC(C)(C)C-171.3-223.7± 1.5kJ/mol114.2285 ±
0.0065
540-84-1*0
Benzvalene cation C1=CC2C3C1[CH+]231200.11184.7± 2.7kJ/mol78.1113 ±
0.0048
81050-63-7*0
Cyanic fluoride cation F[C+]#N1294.41294.9± 1.1kJ/mol45.01529 ±
0.00080
62532-69-8*0
Cyanic fluoride anion FC#[N-]-20.4-18.4± 2.9kJ/mol45.01639 ±
0.00080
34507-50-1*0
Cyclopropane C1CC141.4135.72± 0.53kJ/mol42.0797 ±
0.0024
75-19-4*500
Oxirene C1=CO1387.8384.5± 1.4kJ/mol42.0367 ±
0.0016
157-18-6*1
Diazoethenylidene anion [N]=[N]=C=[C-]529.7532.3± 3.5kJ/mol52.0354 ±
0.0016
*130760-11-1*0
Water anion [H][O-][H]-50.1-53.0± 4.3kJ/mol18.01583 ±
0.00033
12259-30-2*0
Peroxyformate C(=O)O[O-]-340.91-346.36± 0.95kJ/mol61.0174 ±
0.0012
104960-05-6*0
Peroxyhypochlorous acid anion OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*0
Oxoniumyl ion [H][O+][H]978.719975.569± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*2
Chlorohydroxymethylene Cl[C]OH14.311.4± 3.2kJ/mol64.4707 ±
0.0012
147723-60-2*2
Chlorohydroxymethylene Cl[C]OH13.911.2± 2.6kJ/mol64.4707 ±
0.0012
147723-60-2*0
Butadienylacetylene C=CC=CC#C358.7346.2± 1.9kJ/mol78.1118 ±
0.0048
10420-90-3*0
Cyclopentadienide [CH-]1C=CC=C1100.287.2± 1.1kJ/mol65.0937 ±
0.0040
12127-83-2*0
(3Z)-1,3-Hexadien-5-yne C=C/C=C\C#C358.7346.1± 2.5kJ/mol78.1118 ±
0.0048
5222-76-4*0
Divinylacetylene C=CC#CC=C361.7350.6± 2.0kJ/mol78.1118 ±
0.0048
821-08-9*0
Ethynol cation C#[C+]O1063.81061.2± 2.9kJ/mol42.0361 ±
0.0016
84005-02-7*0
Divinylacetylene C=CC#CC=C362.3351.2± 2.6kJ/mol78.1118 ±
0.0048
821-08-9*1
Biallenyl C=C=CC=C=C410.5399.4± 1.5kJ/mol78.1118 ±
0.0048
29776-96-3*0
Nitrous acid anion O[N-]=O-105.84-109.31± 0.78kJ/mol47.01403 ±
0.00061
256393-36-9*0
Biallenyl C=C=CC=C=C419.3408.0± 2.3kJ/mol78.1118 ±
0.0048
29776-96-3*2
Propargylallene C=C=CCC#C431.2419.8± 1.4kJ/mol78.1118 ±
0.0048
33142-15-3*0
Trihydrogen cation [H]1[H+][H]11110.5771106.695± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*1
Propargylallene C=C=CCC#C432.1420.5± 2.2kJ/mol78.1118 ±
0.0048
33142-15-3*2
Hydrazoic acid anion N=[N]=[N-]309.0303.2± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*0
(Chlorooxy)methylene H[C]OCl155.4155.2± 3.7kJ/mol64.4707 ±
0.0012
331419-80-8*1
3-Methylene-1-penten-4-yne C=CC(=C)C#C362.5350.1± 2.2kJ/mol78.1118 ±
0.0048
6929-96-0*0
3-Methylene-1-penten-4-yne C=CC(=C)C#C374.6362.3± 2.8kJ/mol78.1118 ±
0.0048
6929-96-0*3
1,2,3,5-Hexatetraene C=C=C=CC=C391.6380.2± 1.6kJ/mol78.1118 ±
0.0048
60239-33-0*0
Isocyanic fluoride cation FN=[C+]1618.41619.0± 4.0kJ/mol45.01529 ±
0.00080
*16992-26-0*0
1,2,3,5-Hexatetraene C=C=C=CC=C400.4388.8± 2.3kJ/mol78.1118 ±
0.0048
60239-33-0*2
(Chlorooxy)methylene H[C]OCl119.1117.8± 2.7kJ/mol64.4707 ±
0.0012
331419-80-8*0
Isofulminic acid cation [OH+][N+]#[C-]1376.91374.8± 2.9kJ/mol43.02423 ±
0.00086
117800-60-9*0
(Dimethylamino)methyl anion CN(C)[CH2-]190.2166.0± 3.3kJ/mol58.1029 ±
0.0025
125231-49-4*0
Diazene N=N207.12199.98± 0.41kJ/mol30.02936 ±
0.00020
3618-05-1*0
Trioxygen difluoride FOOOF113.4107.6± 2.1kJ/mol85.99501 ±
0.00090
16829-28-0*2
Formylimidogen C(=O)[N]245.2242.1± 4.6kJ/mol43.02478 ±
0.00086
42288-92-6*1
Nitrosyl nitrite anion O=NON=[O-]-103.0-106.1± 2.8kJ/mol76.01223 ±
0.00091
*122413-35-8*0
trans-Cycloheptene C1CCC=CCC1141.6103.6± 1.9kJ/mol96.1702 ±
0.0057
45509-99-7*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]656.6653.1± 2.0kJ/mol39.0559 ±
0.0024
84654-90-0*12
2-Propenylidene [CH]C=C417.4410.4± 1.5kJ/mol40.0639 ±
0.0024
19527-08-3*1
Dioxyamidogen [NH-][O+]=O251.1244.6± 2.5kJ/mol47.01348 ±
0.00061
71843-95-3*1
Hydrodioxonitrogen cation [NH+](=O)[O]1130.21123.6± 3.0kJ/mol47.01293 ±
0.00061
252986-76-8*0
(Z)-1-Methylallyl C/C=C\[CH2]157.2139.8± 2.1kJ/mol55.0984 ±
0.0032
98705-00-1*0
1-Methylallyl CC=C[CH2]154.61138.14± 0.79kJ/mol55.0984 ±
0.0032
15819-46-2*0
1,1-Dibromoethane CC(Br)Br-67.1± 1.3kJ/mol187.8612 ±
0.0026
557-91-5*500
Bromoform C(Br)(Br)Br3.5± 1.3kJ/mol252.7306 ±
0.0031
75-25-2*590
Chloroformyl anion Cl[C-]=O-356.5-352.9± 3.3kJ/mol63.4633 ±
0.0012
41976-93-6*0
2-Propenylidene [CH]C=C417.4410.4± 1.5kJ/mol40.0639 ±
0.0024
19527-08-3*0
Aminomethylidyne anion [C-]N481.6478.0± 3.2kJ/mol28.03387 ±
0.00082
96808-04-7*1
Ethynol C#CO455.5452.2± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*14
1,2-Dichloroethene C(Cl)=CCl3.47-1.85± 0.54kJ/mol96.9427 ±
0.0024
540-59-0*0
N-Methylethanamine CCNC-75.2± 2.3kJ/mol59.1103 ±
0.0025
624-78-2*500
Hydrogen peroxide OO-129.451-135.458± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*1
Iminomethyl [CH]=N275.79272.19± 0.61kJ/mol28.03332 ±
0.00082
15691-95-9*0
Hydroxymethylene anion [CH-]O147.1144.2± 1.6kJ/mol30.02653 ±
0.00087
207914-87-2*0
2-Methyl-2-propanamine CC(C)(C)N-150.74± 0.54kJ/mol73.1369 ±
0.0033
75-64-9*590
3-Buten-2-one CC(=O)C=C-95.49-111.02± 0.87kJ/mol70.0898 ±
0.0032
78-94-4*0
Cyanogen N#CC#N273.93289.18± 0.42kJ/mol52.0349 ±
0.0016
460-19-5*500
2-Propenylidene [CH]C=C419.0411.4± 2.3kJ/mol40.0639 ±
0.0024
19527-08-3*12
Naphthalene cation c1c(cc2ccccc2c1)[H+]956.72933.65± 0.60kJ/mol128.1700 ±
0.0080
34512-27-1*0
Naphthalene anion c1c(cc2ccccc2c1)[H-]187.4164.5± 3.1kJ/mol128.1711 ±
0.0080
34509-91-6*0
Isocyanic acid anion [NH-]=C=O-54.3-57.4± 3.0kJ/mol43.02533 ±
0.00086
*444010-28-0*0
COC vdW [C]=O.[C]589.7598.5± 1.5kJ/mol40.0208 ±
0.0016
*12071-24-8*0
Dinitrogen anion N#[N-]192.5192.5± 1.7kJ/mol28.01403 ±
0.00014
12185-02-3*0
Isocyanogen anion [C-]#[N]C#N386.6388.7± 3.3kJ/mol52.0354 ±
0.0016
*83951-85-3*0
Cyanogen chloride anion ClC#[N-]46.751.0± 3.1kJ/mol61.4707 ±
0.0012
12281-43-5*0
Iminomethide [CH-]=N237.3233.6± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*0
Diphenylacetylene c1ccc(cc1)C#Cc2ccccc2407.6± 1.5kJ/mol178.2292 ±
0.0112
501-65-5*0
Hydrodioxonitrate [NH](=O)[O-]-61.8-68.2± 3.2kJ/mol47.01403 ±
0.00061
61508-71-2*0
3-Buten-2-one CC(=O)C=C-93.9-109.9± 1.6kJ/mol70.0898 ±
0.0032
78-94-4*2
Oxide [O--]651.653.± 15.kJ/mol16.00050 ±
0.00030
16833-27-5*0
1,3-Butadien-2-ol C=C(O)C=C-48.4-64.7± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*12
Cyanogen bromide cation Br[C+]#N1331.61325.3± 1.1kJ/mol105.9209 ±
0.0013
34749-77-4*0
O--HH Complex [H][H].[O]247.6248.9± 2.7kJ/mol18.01528 ±
0.00033
*7732-18-5*101
1,3-Butadien-2-ol C=C(O)C=C-38.3-54.7± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*22
Hydroxymethylene cation [CH+]O971.9968.3± 1.4kJ/mol30.02543 ±
0.00087
135395-06-1*0
Butadiynylium [C+]#CC#C1781.21787.7± 3.2kJ/mol49.0502 ±
0.0032
76108-67-3*0
2-Iodoethanol ICCO-132.0-150.2± 2.5kJ/mol171.9650 ±
0.0017
624-76-0*0
1,3-Butadien-2-ol C=C(O)C=C-43.1-59.1± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*2
Diisocyanogen anion [C-]#[N+][N]#[C-]456.8462.5± 3.6kJ/mol52.0354 ±
0.0016
*78800-22-3*0
Diisocyanogen cation [C]#[N+][N+]#[C-]1825.31828.5± 3.2kJ/mol52.0343 ±
0.0016
*78800-21-2*0
1,3-Butadien-2-ol C=C(O)C=C-53.8-68.7± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*0
Water O-286.300-285.828± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*499
Fluorine atom [F]82.09383.878± 0.047kJ/mol18.99840320 ±
0.00000050
14762-94-8*2
Dinitrogen tetraoxide O=N(=O)N(=O)=O-37.84-26.99± 0.19kJ/mol92.0111 ±
0.0012
10544-72-6*500
Difluoromethane C(F)F-468.74± 0.36kJ/mol52.02339 ±
0.00081
75-10-5*590
Chlorous acid anion O[Cl-]=O-154.2-156.1± 3.3kJ/mol68.4600 ±
0.0011
99559-66-7*0
Hydroperoxonium [OH2+]O738.1727.8± 1.2kJ/mol35.02207 ±
0.00064
70850-26-9*0
Chlorine pentafluoride cation F[Cl+](F)(F)(F)F1005.8996.8± 3.3kJ/mol130.44417 ±
0.00090
478167-78-1*0
Methylaminyliumyl C[N+]1423.01416.1± 2.3kJ/mol29.04071 ±
0.00083
56924-51-7*2
1,2-Propadien-1-one anion C=C=C=[O-]49.548.3± 3.1kJ/mol54.0479 ±
0.0024
159171-62-7*0
Trioxodinitrate anion O=N-[N](=O)[O-]-104.2-107.5± 1.9kJ/mol76.01223 ±
0.00091
194856-62-7*0
Krypton dication [Kr++]3701.1243701.124± 0.013kJ/mol83.7989 ±
0.1000
18469-91-5*0
Propargylenide C#C[CH-]434.4437.6± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*0
Xenon dication [Xe++]3194.143194.14± 0.36kJ/mol131.2889 ±
0.0200
14066-95-6*0
Carbon [C]1114.9611120.107± 0.045kJ/mol12.01070 ±
0.00080
7440-44-0*3
Neon dication [Ne++]6032.9886033.214± 0.0041kJ/mol20.17860 ±
0.00060
14041-55-5*0
Neon trication [Ne+3]12152.40312152.403± 0.033kJ/mol20.17805 ±
0.00060
14158-25-9*0
Neon tetracation [Ne+4]21529.8221531.45± 0.25kJ/mol20.17751 ±
0.00060
14041-56-6*0
Neon pentacation [Ne+5]33711.133711.1± 1.2kJ/mol20.17696 ±
0.00060
14175-48-5*0
Neon hexacation [Ne+6]48949.348949.3± 1.3kJ/mol20.17641 ±
0.00060
14041-57-7*0
Neon heptacation [Ne+7]68948.768948.7± 1.5kJ/mol20.17586 ±
0.00060
14175-50-9*0
Neon octacation [Ne+8]92018.292018.2± 1.5kJ/mol20.17531 ±
0.00060
14782-26-4*0
Neon nonacation [Ne+9]207396.1207396.1± 1.5kJ/mol20.17476 ±
0.00060
15721-59-2*0
Neon cation [Ne+]2080.6622080.769± 0.000kJ/mol20.17915 ±
0.00060
14782-23-1*0
Neon decacation [Ne+10]338828.3338828.3± 1.5kJ/mol20.17421 ±
0.00060
32218-07-8*0
Argon dimer cation [Ar][Ar+]1393.7601391.173± 0.018kJ/mol79.8955 ±
0.0020
17596-58-6*0
Argon cation [Ar+]1520.5711520.580± 0.000kJ/mol39.94745 ±
0.00100
14791-69-6*0
Argon dimer [Ar][Ar]-1.013-6.347± 0.0051kJ/mol79.8960 ±
0.0020
12595-59-4*0
Helium cation [He+]2372.3222372.322± 0.000kJ/mol4.0020534 ±
0.0000020
14234-48-1*0
Helium dication [He++]7622.8397622.839± 0.000kJ/mol4.0015048 ±
0.0000020
12587-46-1*0
Helium anion [He-]51.51.± 130.kJ/mol4.0031506 ±
0.0000020
14452-58-5*1
Helium anion [He-]51.51.± 130.kJ/mol4.0031506 ±
0.0000020
14452-58-5*0
Argon anion [Ar-]23.23.± 75.kJ/mol39.94855 ±
0.00100
16544-90-4*1
Argon anion [Ar-]23.23.± 75.kJ/mol39.94855 ±
0.00100
16544-90-4*0
Helium anion [He-]1868.431868.43± 0.11kJ/mol4.0031506 ±
0.0000020
14452-58-5*2
Helium anion [He-]1904.8231904.824± 0.0011kJ/mol4.0031506 ±
0.0000020
14452-58-5*3
Helium anion [He-]5724.95724.9± 1.5kJ/mol4.0031506 ±
0.0000020
14452-58-5*4
Argon anion [Ar-]1111.1161111.116± 0.098kJ/mol39.94855 ±
0.00100
16544-90-4*2
Hydron [H+]00exact1.007391 ±
0.000070
12408-02-5*800


References
1   B. Ruscic, R. E. Pinzon, M. L. Morton, G. von Laszewski, S. Bittner, S. G. Nijsure, K. A. Amin, M. Minkoff, and A. F. Wagner,
Introduction to Active Thermochemical Tables: Several "Key" Enthalpies of Formation Revisited.
J. Phys. Chem. A 108, 9979-9997 (2004) [DOI: 10.1021/jp047912y]
2   B. Ruscic, R. E. Pinzon, G. von Laszewski, D. Kodeboyina, A. Burcat, D. Leahy, D. Montoya, and A. F. Wagner,
Active Thermochemical Tables: Thermochemistry for the 21st Century.
J. Phys. Conf. Ser. 16, 561-570 (2005) [DOI: 10.1088/1742-6596/16/1/078]
3   B. Ruscic and D. H. Bross,
Active Thermochemical Tables (ATcT) values based on ver. 1.122r of the Thermochemical Network, Argonne National Laboratory, Lemont, Illinois 2021 [DOI: 10.17038/CSE/1822363]; available at ATcT.anl.gov
4   D. Feller, D. H. Bross, and B. Ruscic,
Enthalpy of Formation of C2H2O4 (Oxalic Acid) from High-Level Calculations and the Active Thermochemical Tables Approach.
J. Phys. Chem. A 123, 3481-3496 (2019) [DOI: 10.1021/acs.jpca.8b12329]
5   B. K. Welch, R. Dawes, D. H. Bross, and B. Ruscic,
An Automated Thermochemistry Protocol Based on Explicitly Correlated Coupled-Cluster Theory: The Methyl and Ethyl Peroxy Families.
J. Phys. Chem. A 123, 5673-5682 (2019) [DOI: 10.1021/acs.jpca.8b12329]
6   D. H. Bross, H.-G. Yu, L. B. Harding, and B. Ruscic,
Active Thermochemical Tables: The Partition Function of Hydroxymethyl (CH2OH) Revisited.
J. Phys. Chem. A 123, 4212-4231 (2019) [DOI: 10.1021/acs.jpca.9b02295]
7   B. Ruscic,
Uncertainty Quantification in Thermochemistry, Benchmarking Electronic Structure Computations, and Active Thermochemical Tables.
Int. J. Quantum Chem. 114, 1097-1101 (2014) [DOI: 10.1002/qua.24605]

Formula The aggregate state is given in parentheses following the formula, such as: g - gas-phase, cr - crystal, l - liquid, etc.
Uncertainties The listed uncertainties correspond to estimated 95% confidence limits, as customary in thermochemistry (see, for example, Ruscic [7]).
Note that an uncertainty of ± 0.000 kJ/mol indicates that the estimated uncertainty is < ± 0.0005 kJ/mol.
Website Functionality Credits The reorganization of the website was developed and implemented by David H. Bross (ANL).
The find function is based on the complete Species Dictionary entries for the appropriate version of the ATcT TN.
The molecule images are rendered by Indigo-depict.
The XYZ renderings are based on Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/.
Acknowledgement This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences under Contract No. DE-AC02-06CH11357.