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

Below is a list of 0 K and 298.15 K enthalpies of formation for all 1790 species included in version This version of ATcT results was generated from an expansion of version 1.122p [4] to include an updated enthalpy of formation for oxalic acid. [5] and additional high-level computations on methyl peroxy radical [6].

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 atom [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 atom [C]711.397716.882± 0.047kJ/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
Carbon dioxide C(=O)=O-393.108-393.474± 0.015kJ/mol44.00950 ±
0.00100
124-38-9*0
Methane C-66.560-74.529± 0.050kJ/mol16.04246 ±
0.00085
74-82-8*0
Chlorine atom [Cl]119.621121.302± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*0
Ethane CC-68.39-84.02± 0.13kJ/mol30.0690 ±
0.0017
74-84-0*0
Fluorine atom [F]77.26279.368± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*0
Water O-286.302-285.830± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*500
Water O-238.932-241.835± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*0
Hydron [H+]1528.0841530.047± 0.000kJ/mol1.007391 ±
0.000070
12408-02-5*0
Ethylene C=C60.8452.33± 0.12kJ/mol28.0532 ±
0.0016
74-85-1*0
Bromine atom [Br]117.917111.855± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*0
Methyl [CH3]149.864146.449± 0.056kJ/mol15.03452 ±
0.00083
2229-07-4*0
Methanol CO-190.06-200.95± 0.16kJ/mol32.04186 ±
0.00090
67-56-1*0
Propane CCC-82.80-105.08± 0.18kJ/mol44.0956 ±
0.0025
74-98-6*0
Hydroxyl [OH]37.24937.488± 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+]-113.803-110.523± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*0
Formaldehyde C=O-105.378-109.217± 0.097kJ/mol30.02598 ±
0.00087
50-00-0*0
Ethanol CCO-217.32-235.04± 0.22kJ/mol46.0684 ±
0.0017
64-17-5*0
Hydrogen fluoride F-272.670-272.717± 0.048kJ/mol20.006343 ±
0.000070
7664-39-3*0
Acetylene C#C228.82228.26± 0.13kJ/mol26.0373 ±
0.0016
74-86-2*0
Hydrogen bromide Br-27.66-35.51± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*0
Ammonia N-38.565-45.558± 0.029kJ/mol17.03056 ±
0.00022
7664-41-7*0
Iodine [I]107.157106.757± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*0
Ethyl C[CH2]131.02119.95± 0.26kJ/mol29.0611 ±
0.0016
2025-56-1*0
Hydrogen cyanide C#N129.660129.276± 0.090kJ/mol27.02538 ±
0.00081
74-90-8*0
Nitric oxide [N]=O90.61991.123± 0.065kJ/mol30.00614 ±
0.00031
10102-43-9*0
Chloromethane CCl-74.32-82.25± 0.25kJ/mol50.4872 ±
0.0012
74-87-3*0
Propene CC=C34.8919.89± 0.20kJ/mol42.0797 ±
0.0024
115-07-1*0
Nitrogen dioxide O=[N]=O36.85934.052± 0.065kJ/mol46.00554 ±
0.00060
10102-44-0*0
Hydrogen iodide I28.64626.470± 0.036kJ/mol127.912410 ±
0.000076
10034-85-2*0
Benzene c1ccccc1100.6183.10± 0.23kJ/mol78.1118 ±
0.0048
71-43-2*0
Hydroxyde [OH-]-139.093-139.059± 0.026kJ/mol17.00789 ±
0.00031
14280-30-9*0
Dioxidanyl O[O]15.1212.22± 0.15kJ/mol33.00674 ±
0.00060
3170-83-0*0
Acetaldehyde CC=O-155.08-165.56± 0.25kJ/mol44.0526 ±
0.0017
75-07-0*0
Fluoromethane CF-227.45-235.48± 0.23kJ/mol34.03292 ±
0.00083
593-53-3*0
Hydrogen peroxide OO-129.479-135.465± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*0
Propyne CC#C192.74185.68± 0.23kJ/mol40.0639 ±
0.0024
74-99-7*0
Bromomethane CBr-20.27-35.67± 0.26kJ/mol94.9385 ±
0.0013
74-83-9*0
n-Butane CCCC-98.47-125.78± 0.25kJ/mol58.1222 ±
0.0033
106-97-8*0
Methylene [CH2]428.72429.13± 0.11kJ/mol14.02658 ±
0.00081
2465-56-7*2
Formic acid C(=O)O-371.11-378.43± 0.22kJ/mol46.0254 ±
0.0010
64-18-6*1
Methylene [CH2]391.060391.617± 0.097kJ/mol14.02658 ±
0.00081
2465-56-7*1
Hypochlorous acid OCl-73.869-76.808± 0.027kJ/mol52.46004 ±
0.00095
7790-92-3*0
Tetrafluoromethane C(F)(F)(F)F-927.49-933.46± 0.25kJ/mol88.00431 ±
0.00080
75-73-0*0
Vinyl C=[CH]301.16296.96± 0.32kJ/mol27.0452 ±
0.0016
2669-89-8*0
Dibromine BrBr45.6830.89± 0.12kJ/mol159.8080 ±
0.0020
7726-95-6*0
Acetone CC(=O)C-200.11-216.80± 0.36kJ/mol58.0791 ±
0.0025
67-64-1*0
Tetrachloromethane C(Cl)(Cl)(Cl)Cl-93.42-95.59± 0.43kJ/mol153.8215 ±
0.0037
56-23-5*0
Methylamine CN-6.62-21.33± 0.26kJ/mol31.05714 ±
0.00088
74-89-5*0
Fluoride [F-]-250.903-249.118± 0.048kJ/mol18.99895178 ±
0.00000050
16984-48-8*0
Ketene C=C=O-45.35-48.47± 0.11kJ/mol42.0367 ±
0.0016
463-51-4*0
Chloroethane CCCl-96.90-111.48± 0.26kJ/mol64.5138 ±
0.0019
75-00-3*0
Phenyl c1cccc[c]1350.41337.05± 0.52kJ/mol77.1039 ±
0.0048
2396-01-2*0
Allene C=C=C197.30189.82± 0.25kJ/mol40.0639 ±
0.0024
463-49-0*0
Methylidyne [CH]592.820596.154± 0.098kJ/mol13.01864 ±
0.00080
3315-37-5*0
Methoxide C[O-]-122.63-130.36± 0.28kJ/mol31.03447 ±
0.00088
3315-60-4*0
Nitrilomethyl [C]#N436.75440.04± 0.14kJ/mol26.01744 ±
0.00080
2074-87-5*0
Acetonitrile CC#N81.1074.04± 0.25kJ/mol41.0520 ±
0.0016
75-05-8*0
1,3-Butadiene C=CC=C125.29110.81± 0.34kJ/mol54.0904 ±
0.0032
106-99-0*0
Oxonium [OH3+]605.85599.10± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*0
Diiodine II65.49762.417± 0.0041kJ/mol253.808940 ±
0.000060
7553-56-2*0
Methoxy C[O]28.7621.39± 0.28kJ/mol31.03392 ±
0.00088
2143-68-2*0
Acetic acid CC(=O)O-418.86-432.98± 0.42kJ/mol60.0520 ±
0.0017
64-19-7*1
Ozone O=[O+][O-]144.397141.735± 0.039kJ/mol47.99820 ±
0.00090
10028-15-6*0
Toluene c1ccc(cc1)C73.2950.00± 0.34kJ/mol92.1384 ±
0.0056
108-88-3*0
Fluoroform C(F)(F)F-689.04-695.99± 0.41kJ/mol70.01385 ±
0.00080
75-46-7*0
Trifluoromethyl [C](F)(F)F-464.95-467.74± 0.48kJ/mol69.00591 ±
0.00080
2264-21-3*0
Ethylium [CH2+]1[CH2][H]1914.92902.85± 0.30kJ/mol29.0606 ±
0.0016
14936-94-8*0
Phenol c1ccc(cc1)O-74.80-93.39± 0.63kJ/mol94.1112 ±
0.0048
108-95-2*0
Hydroxymethyl [CH2]O-10.49-16.80± 0.28kJ/mol31.03392 ±
0.00088
2597-43-5*0
Chloride [Cl-]-228.953-227.346± 0.0021kJ/mol35.45325 ±
0.00090
16887-00-6*0
Bromide [Br-]-206.620-212.682± 0.056kJ/mol79.90455 ±
0.00100
24959-67-9*0
Hypobromous acid OBr-51.53-62.01± 0.47kJ/mol96.9113 ±
0.0010
13517-11-8*0
Formyl [CH]=O41.39241.768± 0.097kJ/mol29.01804 ±
0.00086
2597-44-6*0
iso-Butane CC(C)C-106.02-134.63± 0.30kJ/mol58.1222 ±
0.0033
75-28-5*0
Chlorooxidanyl Cl=O101.125101.716± 0.035kJ/mol51.45210 ±
0.00095
14989-30-1*0
Oxomethylium [CH+]=O827.768827.183± 0.097kJ/mol29.01749 ±
0.00086
17030-74-9*0
Methyl hydroperoxide COO-115.17-127.99± 0.50kJ/mol48.0413 ±
0.0010
3031-73-0*0
Imidogen [NH]358.74358.78± 0.16kJ/mol15.014680 ±
0.000099
13774-92-0*0
Propargyl [CH2]C#C353.97351.37± 0.35kJ/mol39.0559 ±
0.0024
2932-78-7*0
Dioxymethyl [O-]\[O+]=C111.84104.84± 0.62kJ/mol46.0254 ±
0.0010
56077-92-0*0
Difluorophosgene C(F)(F)=O-603.34-606.44± 0.41kJ/mol66.00691 ±
0.00085
353-50-4*0
Formamide NC=O-178.54-188.90± 0.36kJ/mol45.04066 ±
0.00088
75-12-7*0
Cyanoacetylene C#CC#N372.00373.74± 0.64kJ/mol51.0468 ±
0.0024
1070-71-9*0
Nitric acid O[N+](=O)[O-]-124.49-134.20± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*0
Amidogen [NH2]188.91186.02± 0.11kJ/mol16.02262 ±
0.00016
13770-40-6*0
Allyl C=C[CH2]179.97168.25± 0.44kJ/mol41.0718 ±
0.0024
1981-80-2*0
Ethenol C=CO-113.12-124.30± 0.52kJ/mol44.0526 ±
0.0017
557-75-5*1
Vinyl chloride C=CCl29.2721.69± 0.30kJ/mol62.4979 ±
0.0018
75-01-4*0
Methylium [CH3+]1099.3361095.393± 0.051kJ/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#N134.97135.66± 0.46kJ/mol61.4701 ±
0.0012
506-77-4*0
Methylperoxy CO[O]22.0512.60± 0.37kJ/mol47.0333 ±
0.0010
2143-58-0*0
Hydroxyformyl O[C]=O-181.13-184.09± 0.44kJ/mol45.0174 ±
0.0010
2564-86-5*1
Isocyanic acid N=C=O-115.98-118.97± 0.30kJ/mol43.02478 ±
0.00086
75-13-8*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
Ethoxide CC[O-]-163.87-178.81± 0.48kJ/mol45.0610 ±
0.0017
16331-64-9*0
Dichloromethane C(Cl)Cl-86.54-93.40± 0.52kJ/mol84.9320 ±
0.0020
75-09-2*0
Chlorobenzene c1ccc(cc1)Cl67.1452.18± 0.61kJ/mol112.5566 ±
0.0049
108-90-7*0
Cyanogen bromide BrC#N187.0180.5± 1.1kJ/mol105.9214 ±
0.0013
506-68-3*0
Iodomethane CI24.5114.97± 0.18kJ/mol141.93899 ±
0.00083
74-88-4*0
Trihydrogen cation [H]1[H+][H]11110.3041106.696± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*0
Oxygen atom anion [O-]105.868108.097± 0.0021kJ/mol15.99995 ±
0.00030
14337-01-0*0
n-Propyl CC[CH2]118.21100.81± 0.52kJ/mol43.0877 ±
0.0024
2143-61-5*0
Acetyl C[C]=O-3.60-10.26± 0.33kJ/mol43.0446 ±
0.0016
3170-69-2*0
iso-Propyl C[CH]C105.1988.31± 0.50kJ/mol43.0877 ±
0.0024
2025-55-0*0
2-Hydroxyethyl [CH2]CO-13.35-26.62± 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-443.14-450.75± 0.33kJ/mol52.02339 ±
0.00081
75-10-5*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=O109.93106.96± 0.11kJ/mol31.01408 ±
0.00032
14332-28-6*0
Isocyanomethane C[N+]#[C-]183.52176.97± 0.59kJ/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]543.39546.39± 0.63kJ/mol38.0480 ±
0.0024
67152-18-5*1
Cyclopentadiene C1C=CC=C1151.19134.07± 0.64kJ/mol66.1011 ±
0.0040
542-92-7*0
Chloroform C(Cl)(Cl)Cl-97.17-102.07± 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
Methanimine C=N96.4788.56± 0.40kJ/mol29.04126 ±
0.00083
2053-29-4*0
Nitrous acid N(=O)O-73.005-79.148± 0.079kJ/mol47.01348 ±
0.00061
7782-77-6*1
1,2-Propadiene-1,3-diylidene [C]=C=[C]814.68823.63± 0.55kJ/mol36.0321 ±
0.0024
12075-35-3*0
Cyanic fluoride FC#N8.779.10± 0.69kJ/mol45.01584 ±
0.00080
1495-50-7*0
1-Hydroxyethyl C[CH]O-42.76-56.19± 0.58kJ/mol45.0605 ±
0.0017
2348-46-1*1
Formate C(=O)[O-]-463.25-466.89± 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
Oxygen atom cation [O+]1560.7861562.644± 0.0021kJ/mol15.99885 ±
0.00030
14581-93-2*0
Tetrafluoroethylene C(=C(F)F)(F)F-670.99-674.40± 0.53kJ/mol100.0150 ±
0.0016
116-14-3*0
Chlorotrifluoromethane C(F)(F)(F)Cl-704.53-709.64± 0.57kJ/mol104.4586 ±
0.0012
75-72-9*0
Ethyl bromide CCBr-41.16-63.11± 0.25kJ/mol108.9651 ±
0.0019
74-96-4*0
Vinyl bromide C=CBr88.6473.83± 0.58kJ/mol106.9492 ±
0.0019
593-60-2*0
Chlorine fluoride ClF-55.614-55.709± 0.055kJ/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-182.63-185.44± 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
n-Butyl CCC[CH2]102.7180.20± 0.71kJ/mol57.1143 ±
0.0033
2492-36-6*0
Hydride [H-]143.264145.228± 0.000kJ/mol1.008489 ±
0.000070
12184-88-2*0
Methoxymethane COC-166.47-183.98± 0.40kJ/mol46.0684 ±
0.0017
115-10-6*0
Methyl acetate CC(=O)OC-394.29-413.16± 0.61kJ/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-134.60-142.40± 0.45kJ/mol46.0436 ±
0.0016
75-02-5*0
Phenylium c1cccc[c+]11148.421135.64± 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+]921.91911.67± 0.45kJ/mol17.04985 ±
0.00087
15135-49-6*0
Oxirane C1OC1-40.07-52.61± 0.37kJ/mol44.0526 ±
0.0017
75-21-8*0
Ethynyl [CH][C]563.87567.98± 0.14kJ/mol25.0293 ±
0.0016
2122-48-7*0
Cyclopropene C1C=C1292.27283.54± 0.48kJ/mol40.0639 ±
0.0024
2781-85-3*0
cis-2-Butene C/C=C\C14.20-7.08± 0.41kJ/mol56.1063 ±
0.0032
590-18-1*0
Ethynide [CH][C-]277.41280.82± 0.18kJ/mol25.0299 ±
0.0016
29075-95-4*0
Formic acid C(=O)O-354.76-361.86± 0.38kJ/mol46.0254 ±
0.0010
64-18-6*2
Methanetetraylbisamidogen [N]=C=[N]450.42450.83± 0.64kJ/mol40.02418 ±
0.00081
2669-76-3*0
Fluoroethane CCF-257.24-272.11± 0.36kJ/mol48.0595 ±
0.0016
353-36-6*0
Bromotrifluoromethane C(F)(F)(F)Br-638.88-651.00± 0.45kJ/mol148.9099 ±
0.0013
75-63-8*0
Phenide c1cccc[c-]1244.34230.91± 0.39kJ/mol77.1044 ±
0.0048
30922-78-2*0
Fluorobenzene c1ccc(cc1)F-99.09-114.76± 0.89kJ/mol96.1023 ±
0.0048
462-06-6*0
Nitromethane C[N+](=O)[O-]-60.82-74.72± 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
Chlorine dioxide O=Cl=O101.3398.86± 0.27kJ/mol67.4515 ±
0.0011
10049-04-4*0
Dioxygen cation O=[O+]1164.5851165.221± 0.0092kJ/mol31.99825 ±
0.00060
12185-07-8*0
Ethynylene [C]=[C]820.33828.79± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*0
Methylidyne [CH]664.55667.88± 0.59kJ/mol13.01864 ±
0.00080
3315-37-5*2
Ethanide C[CH2-]155.25144.17± 0.89kJ/mol29.0616 ±
0.0016
25013-41-6*0
Aminomethyl [CH2]N159.20149.36± 0.38kJ/mol30.04920 ±
0.00085
10507-29-6*0
Cyanide [C-]#N63.95667.242± 0.094kJ/mol26.01799 ±
0.00080
57-12-5*0
Cyanomethyl [CH2]C#N263.39260.51± 0.69kJ/mol40.0440 ±
0.0016
2932-82-3*0
Peroxyformic acid C(=O)OO-279.38-288.73± 0.88kJ/mol62.0248 ±
0.0012
107-32-4*1
Propadienylidene C=C=[C]554.37555.52± 0.41kJ/mol38.0480 ±
0.0024
60731-10-4*0
Isobutene CC(=C)C4.05-17.02± 0.40kJ/mol56.1063 ±
0.0032
115-11-7*0
Ethoxy CC[O]1.27-12.64± 0.47kJ/mol45.0605 ±
0.0017
2154-50-9*51
Cyanooxidanyl N#C[O]126.92127.39± 0.34kJ/mol42.01684 ±
0.00086
22400-26-6*0
Phenolate c1ccc(cc1)[O-]-146.63-162.10± 0.84kJ/mol93.1038 ±
0.0048
3229-70-7*0
Dimethylamine CNC3.83-17.81± 0.46kJ/mol45.0837 ±
0.0017
124-40-3*0
Cyclopentadienyl [CH]1C=CC=C1274.51261.39± 0.92kJ/mol65.0932 ±
0.0040
2143-53-5*0
Bromooxidanyl Br[O]131.15123.61± 0.28kJ/mol95.9034 ±
0.0010
15656-19-6*0
Hypobromite Br[O-]-96.14-103.62± 0.53kJ/mol95.9039 ±
0.0010
14380-62-2*0
Hydrogen fluoride F-334.50± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*800
Ammonium [NH4+]643.02631.71± 0.21kJ/mol18.03795 ±
0.00029
14798-03-9*0
(E)-Diazene [H]/N=N/[H]207.09199.95± 0.41kJ/mol30.02936 ±
0.00020
15626-43-4*0
Fluorodioxidanyl FO[O]26.8125.10± 0.26kJ/mol50.99720 ±
0.00060
15499-23-7*0
Peroxynitrous acid OON=O-5.81-14.25± 0.36kJ/mol63.01288 ±
0.00091
14691-52-2*3
Ethylidene [CH]C373.50366.27± 0.65kJ/mol28.0532 ±
0.0016
4218-50-2*2
Cyanogen N#CC#N308.17310.11± 0.41kJ/mol52.0349 ±
0.0016
460-19-5*0
1-Butene CCC=C21.010.06± 0.36kJ/mol56.1063 ±
0.0032
106-98-9*0
n-Pentane CCCCC-114.41-146.28± 0.31kJ/mol72.1488 ±
0.0041
109-66-0*0
Cyclopentane C1CCCC1-43.87-76.44± 0.39kJ/mol70.1329 ±
0.0041
287-92-3*0
Dichloromethylene [C](Cl)Cl229.51230.69± 0.64kJ/mol82.9161 ±
0.0020
1605-72-7*2
Trifluoromethylium [C+](F)(F)F409.53406.32± 0.47kJ/mol69.00536 ±
0.00080
18851-76-8*0
Difluorodioxidane FOOF35.2831.55± 0.41kJ/mol69.99561 ±
0.00060
7783-44-0*0
Dioxidanide O[O-]-88.87-91.53± 0.34kJ/mol33.00729 ±
0.00060
14691-59-9*0
Trioxidane OOO-82.01-90.86± 0.63kJ/mol50.01408 ±
0.00091
14699-99-1*1
Azido radical [N]N=[N]452.27449.68± 0.60kJ/mol42.02022 ±
0.00021
12596-60-0*0
Nitrous oxide [N-]=[N+]=O85.99782.568± 0.097kJ/mol44.01288 ±
0.00033
10024-97-2*0
Hydroxyoxomethylium O[C+]=O600.62597.54± 0.44kJ/mol45.0169 ±
0.0010
638-71-1*0
Hydroxyamidogen [NH]O101.3694.53± 0.81kJ/mol32.02202 ±
0.00034
13940-32-4*1
Hydrazoic acid N=[N+]=[N-]297.92291.62± 0.49kJ/mol43.02816 ±
0.00022
7782-79-8*0
Water O-285.830± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*590
Ethylidene [CH]C361.20354.20± 0.51kJ/mol28.0532 ±
0.0016
4218-50-2*1
Vinylium [CH+]1[CH][H]11119.011115.56± 0.57kJ/mol27.0447 ±
0.0016
14604-48-9*0
Vinylidene [C]=C411.18412.09± 0.31kJ/mol26.0373 ±
0.0016
2143-69-3*0
Hydroxymethylium [CH2+]O717.65709.71± 0.19kJ/mol31.03337 ±
0.00088
18682-95-6*0
Fluoroacetylene C#CF104.95105.67± 0.40kJ/mol44.0277 ±
0.0016
2713-09-9*0
Peroxyformyl C(=O)O[O]-100.58-105.89± 0.92kJ/mol61.0168 ±
0.0012
56240-83-6*1
n-Hexane CCCCCC-130.04-166.91± 0.34kJ/mol86.1754 ±
0.0049
110-54-3*0
Ketenyl [CH]=C=O177.06178.15± 0.55kJ/mol41.0287 ±
0.0016
51095-15-9*0
Formic acid C(=O)O-371.11-378.40± 0.22kJ/mol46.0254 ±
0.0010
64-18-6*0
Methyl formate COC=O-326.7-339.2± 1.1kJ/mol60.0520 ±
0.0017
107-31-3*2
Trichloromethyl [C](Cl)(Cl)Cl72.0271.55± 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
Bromoform C(Br)(Br)Br75.749.5± 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-19.34-37.14± 0.92kJ/mol106.1219 ±
0.0056
100-52-7*0
Propionaldehyde CCC=O-171.37-186.78± 0.25kJ/mol58.0791 ±
0.0025
123-38-6*0
Isocyanoacetylene C#C[N+]#[C-]484.5486.7± 1.1kJ/mol51.0468 ±
0.0024
66723-45-3*0
Chlorous acid OCl=O25.7420.68± 0.63kJ/mol68.4594 ±
0.0011
13898-47-0*0
Iodooxidanyl I[O]126.97125.04± 0.82kJ/mol142.90387 ±
0.00030
14696-98-1*0
Carbon monoxide cation [C]#[O+]1238.3061241.586± 0.026kJ/mol28.00955 ±
0.00085
12144-04-6*0
Azanide [NH2-]114.76111.89± 0.29kJ/mol16.02317 ±
0.00016
17655-31-1*0
Aminooxy N[O]70.9264.32± 0.71kJ/mol32.02202 ±
0.00034
13408-29-2*0
Nitrate O=[N+]([O-])[O-]-300.30-306.84± 0.60kJ/mol62.00549 ±
0.00090
14797-55-8*0
Hypofluorite [O-]F-108.84-108.67± 0.48kJ/mol34.99835 ±
0.00030
12763-66-5*0
2-Butyne CC#CC159.35146.39± 0.52kJ/mol54.0904 ±
0.0032
503-17-3*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
2-Propynylidyne C#C[C]717.99722.35± 0.80kJ/mol37.0400 ±
0.0024
53590-28-6*0
Ethoxy CC[O]5.53-8.90± 0.47kJ/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
Chloromethylene [CH]Cl320.27320.55± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*2
Dibromomethane C(Br)Br25.94.5± 1.1kJ/mol173.8346 ±
0.0022
74-95-3*0
1,1-Difluoroethene C=C(F)F-343.57-350.63± 0.77kJ/mol64.0341 ±
0.0016
75-38-7*0
3-Buten-2-one CC(=O)C=C-95.57-111.81± 0.87kJ/mol70.0898 ±
0.0032
78-94-4*1
Urea NC(=O)N-218.23-234.63± 0.42kJ/mol60.05534 ±
0.00091
57-13-6*0
Oxomethaniminium [NH2+]=C=O695.47688.91± 0.88kJ/mol44.03217 ±
0.00087
59348-22-0*0
Chlorine trifluoride FCl(F)F-158.6-162.7± 1.2kJ/mol92.44791 ±
0.00090
7790-91-2*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± 0.50kJ/mol195.91038 ±
0.00080
2314-97-8*0
Trinitrogen cation [N]N=[N+]1519.431516.80± 0.89kJ/mol42.01967 ±
0.00021
12185-03-4*0
Oxonitrate anion N#[O-]88.0988.13± 0.25kJ/mol30.00669 ±
0.00031
14967-78-3*0
Nitrosyl ion N#[O+]984.487984.482± 0.065kJ/mol30.00559 ±
0.00031
14452-93-8*0
Nitrogen sesquioxide O=N-[N](=O)[O]90.7286.15± 0.15kJ/mol76.01168 ±
0.00091
10544-73-7*0
Methylene anion [CH2-]328.17328.60± 0.19kJ/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]874.32858.06± 0.62kJ/mol31.0764 ±
0.0017
24669-33-8*1
Acetylium C[C+]=O666.46659.17± 0.45kJ/mol43.0441 ±
0.0016
15762-07-9*0
Hydrogen isocyanide [C]=N191.94192.32± 0.33kJ/mol27.02538 ±
0.00081
6914-07-4*0
Hydroxymethylene [CH]O112.67108.90± 0.27kJ/mol30.02598 ±
0.00087
19710-56-6*1
Chloronium [H][ClH+]881.3878.2± 1.1kJ/mol37.46803 ±
0.00091
36658-55-6*0
Carbonic acid OC(=O)O-602.78-612.95± 0.75kJ/mol62.0248 ±
0.0012
463-79-6*1
Hydrogen bromide Br-120.65± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*800
Peroxyformate C(=O)O[O-]-341.14-346.59± 0.95kJ/mol61.0174 ±
0.0012
104960-05-6*1
trans-2-Butene C/C=C/C9.38-11.18± 0.39kJ/mol56.1063 ±
0.0032
624-64-6*0
Isoprene CC(=C)C=C96.0975.57± 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
Ethynol C#CO95.2992.81± 0.80kJ/mol42.0367 ±
0.0016
32038-79-2*2
Formyloxidanyl C(=O)[O]-125.91-127.57± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*1
Glyoxal O=CC=O-207.75-213.38± 0.61kJ/mol58.0361 ±
0.0017
107-22-2*1
Trimethylamine CN(C)C1.72-27.14± 0.89kJ/mol59.1103 ±
0.0025
75-50-3*0
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-476.01-482.20± 0.98kJ/mol86.4681 ±
0.0012
75-45-6*0
Fluoromethylene [CH]F148.38148.67± 0.43kJ/mol32.01704 ±
0.00080
13453-52-6*2
Fluoroformyl F[C]=O-176.62-176.03± 0.37kJ/mol47.00850 ±
0.00085
1871-24-5*0
2-Bromoethanol BrCCO-196.19-220.25± 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
Phenoxy c1ccc(cc1)[O]70.8355.54± 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
Phenylperoxy c1ccc(cc1)O[O]152.9135.9± 1.4kJ/mol109.1027 ±
0.0049
91422-02-5*0
Bromonium [H][BrH+]925.3914.5± 1.5kJ/mol81.9193 ±
0.0010
36658-54-5*0
Hydrazine NN111.5997.44± 0.43kJ/mol32.04524 ±
0.00031
302-01-2*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
Vinyl anion C=[CH-]237.00232.58± 0.82kJ/mol27.0458 ±
0.0016
25012-81-1*0
Ethylidyne [C]C640.7636.1± 1.1kJ/mol27.0452 ±
0.0016
67624-57-1*2
Aminomethylium [CH2+]N763.90751.93± 0.65kJ/mol30.04865 ±
0.00085
488821-23-4*0
Isocyanomethanide [CH2-][N+]#[C-]253.8250.7± 1.0kJ/mol40.0446 ±
0.0016
81704-80-5*0
1-Methylethylidene C[C]C315.92302.02± 0.99kJ/mol42.0797 ±
0.0024
40852-89-9*2
1-Methylethenyl C[C]=C263.00252.61± 0.73kJ/mol41.0718 ±
0.0024
15552-77-9*0
Hydrogen chloride Cl-166.991± 0.023kJ/mol36.46064 ±
0.00090
7647-01-0*800
iso-Pentane CCC(C)C-119.16-153.21± 0.43kJ/mol72.1488 ±
0.0041
78-78-4*0
1-Hydroxyethyl C[CH]O-41.32-54.79± 0.80kJ/mol45.0605 ±
0.0017
2348-46-1*2
Protonated oxirane [OH+]1CC1725.54709.37± 0.62kJ/mol45.0600 ±
0.0017
*38607-31-7*0
Methanediol C(O)O-379.41-393.61± 0.92kJ/mol48.0413 ±
0.0010
463-57-0*1
Trioxidanide OO[O-]-120.0-123.1± 1.6kJ/mol49.00669 ±
0.00090
89965-38-8*2
Methoxyethane CCOC-194.38-217.27± 0.57kJ/mol60.0950 ±
0.0025
540-67-0*0
Acetic acid CC(=O)O-397.87-411.65± 0.83kJ/mol60.0520 ±
0.0017
64-19-7*2
Acetyl chloride CC(=O)Cl-232.59-241.59± 0.33kJ/mol78.4973 ±
0.0019
75-36-5*0
Chlorohydroxymethyl [CH](Cl)O-54.8-60.8± 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
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*1
Dichlorodifluoromethane C(F)(F)(Cl)Cl-489.46-493.64± 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-193.90-193.43± 0.38kJ/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
Benzyl c1ccc(cc1)[CH2]229.96211.15± 0.60kJ/mol91.1305 ±
0.0056
2154-56-5*0
Methyl nitrite CON=O-55.68-67.46± 0.46kJ/mol61.0401 ±
0.0010
624-91-9*2
Carbamoyl N[C]=O-7.50-13.91± 0.83kJ/mol44.03272 ±
0.00087
2858-51-7*0
Acetamide CC(=O)N-219.50-237.01± 0.58kJ/mol59.0672 ±
0.0017
60-35-5*0
2-Cyanovinyl [CH]=CC#N447.9445.5± 1.2kJ/mol52.0547 ±
0.0024
189141-20-6*2
Dichloride Cl[Cl-]-229.8-228.7± 1.4kJ/mol70.9059 ±
0.0018
12595-89-0*0
Hypoiodite I[O-]-102.47-104.29± 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)=O936.092936.927± 0.017kJ/mol44.00895 ±
0.00100
12181-61-2*0
Chlorine atom cation [Cl+]1370.8061372.602± 0.0011kJ/mol35.45215 ±
0.00090
24203-47-2*0
Ammonium [NH4+]-133.076± 0.056kJ/mol18.03795 ±
0.00029
14798-03-9*800
Hydrazino N[NH]234.71224.19± 0.69kJ/mol31.03730 ±
0.00025
13598-46-4*0
Methylamidogen C[NH]187.50176.85± 0.47kJ/mol30.04920 ±
0.00085
15622-51-2*0
Methyleneamidogen C=[N]242.00238.34± 0.58kJ/mol28.03332 ±
0.00082
15845-29-1*0
(E)-Iminomethyl [CH]=N275.79272.17± 0.61kJ/mol28.03332 ±
0.00082
54980-10-8*0
Hydrogen isocyanide cation [C+]=N1352.91352.9± 1.3kJ/mol27.02483 ±
0.00081
74158-11-5*0
Chloroacetylene C#CCl228.12228.98± 0.70kJ/mol60.4820 ±
0.0018
593-63-5*0
Hydroperoxonium [OH2+]O738.1727.8± 1.2kJ/mol35.02207 ±
0.00064
70850-26-9*1
iso-Propylium C[CH+]C822.86805.78± 0.25kJ/mol43.0871 ±
0.0024
19252-53-0*0
n-Propylide CC[CH2-]122.8105.2± 1.2kJ/mol43.0882 ±
0.0024
59513-13-2*0
1-Propenyl CC=[CH]278.28267.43± 0.75kJ/mol41.0718 ±
0.0024
6067-68-1*2
1,2-Propadienyl anion C=C=[CH-]265.66262.60± 0.69kJ/mol39.0565 ±
0.0024
64066-06-4*0
Propargylenide C#C[CH-]434.4436.9± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*1
t-Butyl C[C](C)C74.9849.69± 0.77kJ/mol57.1143 ±
0.0033
1605-73-8*0
neo-Pentane CC(C)(C)C-134.63-167.51± 0.40kJ/mol72.1488 ±
0.0041
463-82-1*0
Cyclobutane C1CCC152.3127.77± 0.40kJ/mol56.1063 ±
0.0032
287-23-0*0
Cyclobutene C1CC=C1177.44160.39± 0.72kJ/mol54.0904 ±
0.0032
822-35-5*0
1-Butyne CCC#C179.55165.97± 0.62kJ/mol54.0904 ±
0.0032
107-00-6*0
Chloro hypochlorite ClOCl79.7877.97± 0.36kJ/mol86.9048 ±
0.0018
7791-21-1*0
2-Hydroxyethyl [CH2]CO-10.80-23.44± 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
Oxoethylidene [CH]C=O261.1257.6± 1.1kJ/mol42.0367 ±
0.0016
39920-84-8*12
Methanediol C(O)O-369.11-382.27± 0.95kJ/mol48.0413 ±
0.0010
463-57-0*2
Chlorine pentafluoride FCl(F)(F)(F)F-226.1-234.2± 1.7kJ/mol130.44472 ±
0.00090
13637-63-3*0
Methoxyethene C=COCC-89.2-107.1± 1.1kJ/mol58.0791 ±
0.0025
107-25-5*2
Methyl acetate CC(=O)OC-363.4-382.2± 1.2kJ/mol74.0785 ±
0.0025
79-20-9*2
Carboxymethyl [CH2]C(=O)O-227.4-237.3± 1.2kJ/mol59.0440 ±
0.0017
2887-46-9*1
(Methylamino)methyl CN[CH2]167.74151.29± 0.96kJ/mol44.0758 ±
0.0017
31277-24-4*0
Dimethylamidogen C[N]C173.8156.5± 1.5kJ/mol44.0758 ±
0.0017
15337-44-7*0
Cyanoamidogen [NH]C#N323.9321.4± 1.4kJ/mol41.03212 ±
0.00082
12347-01-2*0
Bromotrichloromethane C(Cl)(Cl)(Cl)Br-32.71-41.86± 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
Chloromethanol ClCO-232.3-242.5± 1.2kJ/mol66.4866 ±
0.0013
15454-33-8*0
Chlorooxy hypochlorite ClOOCl134.56131.32± 0.56kJ/mol102.9042 ±
0.0019
12292-23-8*0
Chloromethoxy C(Cl)[O]-11.9-18.8± 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-285.27-288.43± 0.78kJ/mol137.3672 ±
0.0028
75-69-4*0
2-Chloroethanol ClCCO-249.81-266.52± 0.59kJ/mol80.5132 ±
0.0019
107-07-3*0
o-Benzyne C1=CC#CC=C1468.00459.09± 0.87kJ/mol76.0960 ±
0.0048
462-80-6*2
Peroxyhypochlorous acid OOCl3.94-1.33± 0.95kJ/mol68.4594 ±
0.0011
67952-07-2*0
Tropyl [CH]1C=CC=CC=C1295.7278.3± 1.1kJ/mol91.1305 ±
0.0056
3551-27-7*0
Iodobenzene c1ccc(cc1)I177.69161.70± 0.99kJ/mol204.0084 ±
0.0048
591-50-4*0
Acetonyl CC(=O)[CH2]-19.06-31.77± 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-]285.02278.51± 0.95kJ/mol53.0627 ±
0.0024
14668-82-7*0
1-Isocyanoethylidene C[C][N+]#[C-]527.7523.0± 1.1kJ/mol53.0627 ±
0.0024
*498544-34-6*2
Cyclobutadiene C1=CC=C1435.78427.32± 0.90kJ/mol52.0746 ±
0.0032
1120-53-2*0
Nitrogen atom cation [N+]1872.9071875.689± 0.024kJ/mol14.006191 ±
0.000070
14158-23-7*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
Chlorate O=Cl(=O)[O-]-207.3-212.8± 1.6kJ/mol83.4514 ±
0.0013
14866-68-3*0
Chloric acid OCl(=O)=O2.1-5.0± 1.6kJ/mol84.4588 ±
0.0013
7790-93-4*0
Isodiazene [N]N307.51300.43± 0.63kJ/mol30.02936 ±
0.00020
28647-38-3*0
Difluoride F[F-]-291.0-290.2± 1.5kJ/mol37.9973550 ±
0.0000010
12184-85-9*0
Oxoammoniumyl [NH+]=O1092.461089.53± 0.67kJ/mol31.01353 ±
0.00032
63559-87-5*0
Trioxidane OOO-72.74-81.23± 0.82kJ/mol50.01408 ±
0.00091
14699-99-1*2
Nitryl hydride [NH+](=O)[O-]-36.6-43.6± 1.1kJ/mol47.01348 ±
0.00061
90266-90-3*0
Peroxynitrous acid OON=O7.770.69± 0.41kJ/mol63.01288 ±
0.00091
14691-52-2*1
Carbon anion [C-]589.621594.767± 0.047kJ/mol12.01125 ±
0.00080
14337-00-9*0
Ethylidyne [C]C508.51504.81± 0.80kJ/mol27.0452 ±
0.0016
67624-57-1*0
Ethynylium [CH][C+]1687.581690.91± 0.16kJ/mol25.0288 ±
0.0016
16456-59-0*0
Methylamidogen anion C[NH-]145.23134.40± 0.65kJ/mol30.04975 ±
0.00085
54448-39-4*0
Iminomethyl cation [NH+]#C953.3949.2± 1.4kJ/mol28.03277 ±
0.00082
196216-36-1*0
Fluoronium [H][F+][H]774.11771.17± 0.88kJ/mol21.01373 ±
0.00014
12206-67-6*2
Water dimer O.O-491.084-499.124± 0.052kJ/mol36.03056 ±
0.00066
25655-83-8*0
Methylperoxy anion CO[O-]-90.38-100.52± 0.49kJ/mol47.0339 ±
0.0010
35683-44-4*0
Propylidyne CC[C]492.4482.7± 1.2kJ/mol41.0718 ±
0.0024
85056-54-8*1
Cyclopropylidene [C]1CC1474.89466.87± 0.85kJ/mol40.0639 ±
0.0024
2143-70-6*1
Propargylium [CH2+]C#C1193.441190.63± 0.35kJ/mol39.0554 ±
0.0024
21540-27-2*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
Bromanylium [Br+]1257.7781251.715± 0.057kJ/mol79.90345 ±
0.00100
22541-56-6*0
1,2-Butadiene CC=C=C175.82162.32± 0.46kJ/mol54.0904 ±
0.0032
590-19-2*0
Cyclohexane C1CCCCC1-83.44-123.01± 0.33kJ/mol84.1595 ±
0.0049
110-82-7*0
Hydrogen fluoride F-321.05± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*818
Ethenol C=CO-108.75-119.45± 0.60kJ/mol44.0526 ±
0.0017
557-75-5*2
Vinoxy C=C[O]22.9616.12± 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-319.52-322.11± 0.58kJ/mol45.0180 ±
0.0010
78944-70-4*2
Ethoxyethane CCOCC-222.96-250.38± 0.82kJ/mol74.1216 ±
0.0033
60-29-7*0
2-Hydrotrioxy [O][OH][O]299.6293.9± 1.2kJ/mol49.00614 ±
0.00090
*12500-78-6*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-]-496.6-505.7± 1.2kJ/mol59.0446 ±
0.0017
71-50-1*0
(Dimethylamino)methyl CN(C)[CH2]165.5142.5± 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-147.0-149.3± 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
Dichloroacetylene ClC#CCl230.12233.43± 0.94kJ/mol94.9268 ±
0.0024
7572-29-4*0
Difluoromethylene [C](F)F-193.90-193.43± 0.38kJ/mol50.00751 ±
0.00080
2154-59-8*0
Hexafluoroethane C(F)(F)(F)C(F)(F)F-1334.13-1342.43± 0.98kJ/mol138.0118 ±
0.0016
76-16-4*0
1,1-Difluoroethane CC(F)F-489.00-502.72± 0.56kJ/mol66.0500 ±
0.0016
75-37-6*0
2-Fluoroethanol FCCO-405.85-423.09± 0.99kJ/mol64.0589 ±
0.0017
371-62-0*0
1,3-Butadiyne C#CC#C457.86459.58± 0.76kJ/mol50.0587 ±
0.0032
460-12-8*0
Benzylide c1ccc(cc1)[CH2-]141.81122.90± 0.43kJ/mol91.1310 ±
0.0056
18860-15-6*0
Ethylbenzene c1ccc(cc1)CC58.1729.70± 0.55kJ/mol106.1650 ±
0.0064
100-41-4*0
Phenylethene c1ccc(cc1)C=C169.66148.32± 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
Chlorodioxidanyl ClO[O]103.91102.82± 0.37kJ/mol67.4515 ±
0.0011
17376-09-9*0
Acetonate CC(=[O-])[CH2]-187.88-201.43± 0.98kJ/mol57.0717 ±
0.0024
24262-31-5*0
Propadienone C=C=C=O131.95130.31± 0.79kJ/mol54.0474 ±
0.0024
61244-93-7*0
Nitrosomethane CN=O81.371.4± 1.3kJ/mol45.04066 ±
0.00088
865-40-7*0
1-Cyanoethylidene C[C]C#N475.6470.4± 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]600.6595.5± 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#N447.9445.5± 1.1kJ/mol52.0547 ±
0.0024
189141-20-6*1
Perchloryl O=Cl(=O)[O]191.69186.01± 0.61kJ/mol83.4509 ±
0.0013
13932-10-0*0
Nitroxyl O=[N+]([O-])[O]79.4074.14± 0.19kJ/mol62.00494 ±
0.00090
12033-49-7*0
Azanylium [NH3+]944.272937.317± 0.029kJ/mol17.03001 ±
0.00022
19496-55-0*0
Carbon cation [C+]1797.8501803.448± 0.047kJ/mol12.01015 ±
0.00080
14067-05-1*0
Methyliumylidene [CH+]1619.7551623.098± 0.053kJ/mol13.01809 ±
0.00080
24361-82-8*0
Ethylidyne [C]C508.51504.81± 0.80kJ/mol27.0452 ±
0.0016
67624-57-1*1
Vinylidene anion [C-]=C363.97363.78± 0.50kJ/mol26.0378 ±
0.0016
66295-36-1*0
Hypochloroperoxoous acid, hydroxy ester OOOCl49.142.2± 1.9kJ/mol84.4588 ±
0.0013
928652-99-7*1
Cyanomethanide [CH2-]C#N114.24111.41± 0.69kJ/mol40.0446 ±
0.0016
21438-99-3*0
Iodine monobromide IBr49.71840.771± 0.067kJ/mol206.8085 ±
0.0010
7789-33-5*0
Methanol cation [CH3+]O856.79846.46± 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
Hydroxyde [OH-]-230.014± 0.029kJ/mol17.00789 ±
0.00031
14280-30-9*800
Carbonic acid OC(=O)O-596.91-607.02± 0.83kJ/mol62.0248 ±
0.0012
463-79-6*2
Carbonic acid OC(=O)O-561.68-570.53± 0.97kJ/mol62.0248 ±
0.0012
463-79-6*3
Hydrogen carbonate O[C](=O)[O-]-720.6-727.0± 1.4kJ/mol61.0174 ±
0.0012
71-52-3*0
n-Propylium CC[CH2+]856.95838.67± 0.85kJ/mol43.0871 ±
0.0024
19252-52-9*0
Dioxygen anion O=[O-]-43.36-42.72± 0.17kJ/mol31.99935 ±
0.00060
11062-77-4*0
Propylidene CC[CH]349.44335.75± 0.96kJ/mol42.0797 ±
0.0024
6700-78-3*1
Allyl anion C=C[CH2-]134.09123.08± 0.23kJ/mol41.0723 ±
0.0024
1724-46-5*0
Cyclopropyl C1C[CH]1303.3290.7± 1.3kJ/mol41.0718 ±
0.0024
2417-82-5*0
Propylidyne CC[C]624.5613.0± 1.3kJ/mol41.0718 ±
0.0024
85056-54-8*2
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]C90.8666.09± 0.87kJ/mol57.1143 ±
0.0033
2348-55-2*0
Oxygen atom [O]436.666438.523± 0.0021kJ/mol15.99940 ±
0.00030
17778-80-2*2
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 C1OO19.401.74± 0.55kJ/mol46.0254 ±
0.0010
157-26-6*0
Hydroxyformyl anion [C-](=O)O-313.63-315.43± 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
Cyanic acid OC#N-12.29-15.00± 0.48kJ/mol43.02478 ±
0.00086
420-05-3*0
Isofulminic acid O[N+]#[C-]235.29233.58± 0.48kJ/mol43.02478 ±
0.00086
506-85-4*0
Acetic acid CC(=O)O-418.86-432.99± 0.42kJ/mol60.0520 ±
0.0017
64-19-7*0
Ethyl formate C(=O)OCC-375.2-393.9± 1.2kJ/mol74.0785 ±
0.0025
109-94-4*1
Methoxyoxomethyl CO[C]=O-152.5-160.6± 1.5kJ/mol59.0440 ±
0.0017
16481-04-2*1
(Formyloxy)methyl O=CO[CH2]-151.9-160.1± 1.3kJ/mol59.0440 ±
0.0017
3122-12-1*1
Ethylene glycol OCCO-369.75-389.38± 0.40kJ/mol62.0678 ±
0.0018
107-21-1*0
Dioxoethyl C(=O)[C]=O-63.7-65.1± 1.3kJ/mol57.0281 ±
0.0017
702699-38-5*0
(Methylamino)methyl cation CN[CH2+]729.05710.43± 0.98kJ/mol44.0752 ±
0.0017
*31277-24-4*0
Diazomethyl [CH]=[N]=[N]470.6468.1± 1.5kJ/mol41.03212 ±
0.00082
20813-32-5*0
Isocyanoamidogen [NH][N+]#[C-]491.1489.1± 1.5kJ/mol41.03212 ±
0.00082
947408-73-3*0
Dichloromethyl [CH](Cl)Cl92.2090.28± 0.88kJ/mol83.9240 ±
0.0020
3474-12-2*0
Chloromethyl [CH2]Cl118.46115.38± 0.87kJ/mol49.4793 ±
0.0012
6806-86-6*0
Methyl hypochlorite COCl-53.1-63.0± 1.4kJ/mol66.4866 ±
0.0013
593-78-2*0
1,2-Dichloroethane C(Cl)CCl-118.59-130.53± 0.54kJ/mol98.9586 ±
0.0024
107-06-2*0
Trioxygen difluoride FOOOF112.2106.5± 1.1kJ/mol85.99501 ±
0.00090
16829-28-0*1
Ozonide O=[O-]=O-58.48-60.84± 0.21kJ/mol47.99875 ±
0.00090
12596-80-4*0
Chlorofluoromethane C(F)Cl-256.1-263.3± 1.1kJ/mol68.4777 ±
0.0012
593-70-4*0
Difluoromethyliumyl [C+](F)F908.19908.62± 0.78kJ/mol50.00696 ±
0.00080
54250-40-7*0
Trioxidanyl OO[O]25.3223.33± 0.13kJ/mol49.00614 ±
0.00090
12500-78-6*1
Fluoromethyliumylidene [C+]F1122.931126.14± 0.46kJ/mol31.00855 ±
0.00080
33412-11-2*0
1,2-Difluoroacetylene FC#CF2.875.70± 0.65kJ/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
Bromochlorane BrCl21.88214.439± 0.060kJ/mol115.3567 ±
0.0013
13863-41-7*0
o-Benzyne anion C1=CC#CC=[CH-]1413.62404.51± 0.96kJ/mol76.0965 ±
0.0048
100569-88-8*0
Oxidanylium [OH+]1293.1881293.217± 0.035kJ/mol17.00679 ±
0.00031
12259-29-9*0
Cycloheptene C1CCC=CCC128.17-9.05± 0.75kJ/mol96.1702 ±
0.0057
628-92-2*0
Cycloheptatriene C1C=CC=CC=C1207.10183.67± 0.95kJ/mol92.1384 ±
0.0056
544-25-2*0
Dioxaziridinyl [N]1OO1355.1352.6± 1.4kJ/mol46.00554 ±
0.00060
66252-29-7*0
Fluorobenzene cation c1ccc(cc1)[F+]788.89773.87± 0.89kJ/mol96.1018 ±
0.0048
34468-25-2*0
Nitrosobenzene c1ccc(cc1)N=O215.7198.8± 1.2kJ/mol107.1100 ±
0.0048
586-96-9*0
Nitromethyl C=[N+](=O)[O-]138.9129.5± 1.2kJ/mol60.0321 ±
0.0010
16787-85-2*0
2-Butanone CCC(=O)C-217.02-238.47± 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=NO30.720.1± 1.4kJ/mol45.04066 ±
0.00088
75-17-2*1
Diazenyl [N]=N252.13249.22± 0.45kJ/mol29.02142 ±
0.00016
36882-13-0*0
Fluoride [F-]-334.50± 0.16kJ/mol18.99895178 ±
0.00000050
16984-48-8*800
Hydroxyimidogen [N]O217.84214.95± 0.78kJ/mol31.01408 ±
0.00032
35337-59-8*0
Peroxynitric acid [N+](=O)([O-])OO-42.6-52.9± 1.3kJ/mol79.0123 ±
0.0012
26404-66-0*0
Nitrosyl chloride ClN=O54.45352.552± 0.067kJ/mol65.45884 ±
0.00095
2696-92-6*0
Carbon dioxide C(=O)=O49.850.6± 1.1kJ/mol44.00950 ±
0.00100
124-38-9*1
Methane cation [CH4+]1150.6701144.287± 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
Ethanium [CH3+][H][CH3]874.32858.08± 0.62kJ/mol31.0764 ±
0.0017
24669-33-8*0
Acetylene cation C#[CH+]1328.831328.17± 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
Water anion [H][O-][H]31.329.8± 3.1kJ/mol18.01583 ±
0.00033
12259-30-2*100
Isocyanomethyl [CH2][N+]#[C-]363.6361.1± 1.2kJ/mol40.0440 ±
0.0016
70971-59-4*0
Trioxidanylium OO[O+]1070.41064.1± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*1
Methyloxoniumylidene C[O+]1062.681054.87± 0.75kJ/mol31.03337 ±
0.00088
58157-09-8*0
Chlorine difluoride [Cl](F)F-47.0-48.2± 1.4kJ/mol73.44951 ±
0.00090
24801-48-7*0
Hydroxymethylene [CH]O131.09127.35± 0.29kJ/mol30.02598 ±
0.00087
19710-56-6*2
Hydroxymethylene cation [CH+]O971.9968.2± 1.4kJ/mol30.02543 ±
0.00087
135395-06-1*1
Isoformyl [C]O217.25217.64± 0.69kJ/mol29.01804 ±
0.00086
71080-92-7*0
1-Methylethylidene C[C]C326.8313.6± 1.2kJ/mol42.0797 ±
0.0024
40852-89-9*1
Allylium C=C[CH2+]964.53952.97± 0.44kJ/mol41.0713 ±
0.0024
1724-44-3*0
1-Propenyl CC=[CH]280.32269.49± 0.81kJ/mol41.0718 ±
0.0024
6067-68-1*1
Cycloprop-1-enyl C1C=[C]1527.40523.01± 0.61kJ/mol39.0559 ±
0.0024
19528-44-0*0
Cycloprop-2-enylium C1=C[CH+]11080.31075.2± 1.1kJ/mol39.0554 ±
0.0024
26810-74-2*0
Cyclopropynyl [CH]1C#C1710.96715.08± 0.85kJ/mol37.0400 ±
0.0024
119178-99-3*0
n-Butyl anion CCC[CH2-]105.880.9± 1.3kJ/mol57.1148 ±
0.0033
79431-01-9*0
sec-Butyl anion CC[CH-]C103.078.5± 1.3kJ/mol57.1148 ±
0.0033
79431-00-8*0
Cyclopentene C1CC=CC159.4635.19± 0.45kJ/mol68.1170 ±
0.0040
142-29-0*0
n-Heptane CCCCCCC-145.65-187.52± 0.48kJ/mol100.2019 ±
0.0057
142-82-5*0
n-Octane CCCCCCCC-161.42-208.25± 0.67kJ/mol114.2285 ±
0.0065
111-65-9*0
1-Hydroxyethylium C[CH+]O610.9596.4± 1.1kJ/mol45.0600 ±
0.0017
18682-96-7*2
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+]O1901.1893.2± 1.5kJ/mol43.0441 ±
0.0016
57789-76-1*2
Hydrogen chloride Cl-165.757± 0.025kJ/mol36.46064 ±
0.00090
7647-01-0*828
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
Bromide [Br-]-120.65± 0.15kJ/mol79.90455 ±
0.00100
24959-67-9*800
Oxoethylidene [CH]C=O275.4272.6± 1.7kJ/mol42.0367 ±
0.0016
39920-84-8*2
Ethyl hydroperoxide CCOO-143.2-161.6± 1.2kJ/mol62.0678 ±
0.0018
3031-74-1*0
Hydrogen fluoride F-321.10± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*820
Formic acid cation [CH+](=O)O721.87714.78± 0.26kJ/mol46.0248 ±
0.0010
50614-05-6*1
Azide [N]N=[N-]193.55190.04± 0.91kJ/mol42.02077 ±
0.00021
14343-69-2*0
Formyloxidanyl C(=O)[O]-122.10-125.45± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*2
Chloryl hydride [H][Cl](=O)=O197.6191.2± 1.6kJ/mol68.4594 ±
0.0011
174365-32-3*0
Dinitrogen pentoxide O=[N+]([O-])O[N+](=O)[O-]24.4314.86± 0.35kJ/mol108.0105 ±
0.0015
10102-03-1*0
1-Propanol CCCO-231.41-255.26± 0.25kJ/mol60.0950 ±
0.0025
71-23-8*0
Fulminic acid C#[N+][O-]170.83169.37± 0.49kJ/mol43.02478 ±
0.00086
51060-05-0*0
Hydrogen difluoride F.[F]-198.5-198.4± 1.2kJ/mol39.004746 ±
0.000070
12528-21-1*1
(Formyloxy)methyl O=CO[CH2]-136.3-144.5± 1.3kJ/mol59.0440 ±
0.0017
3122-12-1*2
Carboxymethyl [CH2]C(=O)O-206.7-216.0± 1.3kJ/mol59.0440 ±
0.0017
2887-46-9*2
Dimethylamide C[N-]C122.2103.8± 1.7kJ/mol44.0763 ±
0.0017
34285-60-4*0
Oxoniumyl ion [H][O+][H]978.467975.564± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*0
Iodide [I-]-56.824± 0.090kJ/mol126.905019 ±
0.000030
20461-54-5*800
1H-Triazirin-1-yl [N]1N=[N]1585.9584.1± 2.0kJ/mol42.02022 ±
0.00021
912535-95-6*0
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± 0.20kJ/mol141.93899 ±
0.00083
74-88-4*590
Difluoromethylene [C](F)F43.2944.00± 0.38kJ/mol50.00751 ±
0.00080
2154-59-8*1
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]#CF445.2449.8± 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-97.96-113.89± 0.37kJ/mol187.8181 ±
0.0022
593-95-3*0
Benzene c1ccccc150.7149.16± 0.23kJ/mol78.1118 ±
0.0048
71-43-2*500
o-Benzyne C1=CC#CC=C1468.00459.09± 0.87kJ/mol76.0960 ±
0.0048
462-80-6*0
m-Benzyne c1[c]ccc[c]1526.9518.4± 1.2kJ/mol76.0960 ±
0.0048
1828-89-3*2
p-Benzyne c1c[c]cc[c]1586.9577.4± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*2
Cycloheptane C1CCCCCC1-72.76-118.26± 0.53kJ/mol98.1861 ±
0.0057
291-64-5*0
Dioxidenium O[O+]1110.871107.98± 0.11kJ/mol33.00619 ±
0.00060
12207-52-2*0
Benzoyl fluoride c1ccc(cc1)C(=O)F-288.1-304.5± 1.5kJ/mol124.1124 ±
0.0056
455-32-3*0
Iodine cation [I+]1115.5491115.149± 0.0062kJ/mol126.903921 ±
0.000030
22541-93-1*0
Bifluoride F.[F-]-481.7-480.6± 1.9kJ/mol39.005295 ±
0.000070
*18130-74-0*2
2-Cyclopropen-1-one O=C1C=C1163.7159.8± 1.2kJ/mol54.0474 ±
0.0024
2961-80-0*0
Cyanovinylidene [C]=CC#N581.6584.1± 1.2kJ/mol51.0468 ±
0.0024
70277-81-5*0
Isocyanovinylidene [C]=C[N+]#[C-]696.8700.1± 1.4kJ/mol51.0468 ±
0.0024
737788-76-0*0
Cyanoacetylide [C-]#CC#N300.2305.5± 1.2kJ/mol50.0394 ±
0.0024
12373-53-4*0
Isocyanoethene C=C[N+]#[C-]285.02278.51± 0.95kJ/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
Propargyl chloride C#CCCl186.5180.6± 1.3kJ/mol74.5086 ±
0.0026
624-65-7*0
Silicon [Si]446.23450.57± 0.20kJ/mol28.08550 ±
0.00030
7440-21-3*0
Dioxiranylidene [C]1OO1190.3191.1± 1.4kJ/mol44.00950 ±
0.00100
138832-57-2*0
Methylidyne [CH]592.820596.154± 0.098kJ/mol13.01864 ±
0.00080
3315-37-5*1
Fluorohydrochlorine cation FCl[H+]975.3972.3± 2.0kJ/mol55.45849 ±
0.00090
70110-64-4*0
Oxofluoronium O=[F+]1342.651342.60± 0.81kJ/mol34.99725 ±
0.00030
12763-67-6*0
Chlorine fluoride cation [Cl+]F1165.531165.71± 0.49kJ/mol54.45055 ±
0.00090
12432-44-9*0
Methylammonium C[NH3+]628.4609.5± 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
Peroxychlorous acid O=ClOO96.290.2± 2.1kJ/mol84.4588 ±
0.0013
177778-92-6*1
Deuterium atom [2H]219.804221.717± 0.000kJ/mol2.01410177800 ±
0.00000000040
16873-17-9*0
Methyleneoxonium [CH2].O152.44144.12± 0.49kJ/mol32.04186 ±
0.00090
177788-17-9*0
(Z)-Diazene [H]/N=N\[H]228.81221.67± 0.63kJ/mol30.02936 ±
0.00020
15626-42-3*0
Hydroxymethylene anion [CH-]O147.1144.1± 1.6kJ/mol30.02653 ±
0.00087
207914-87-2*1
Chlorine difluoride cation [Cl+](F)F998.9996.7± 1.7kJ/mol73.44896 ±
0.00090
32629-46-2*0
Hydroxymethyliumylidene [C+]O986.02987.65± 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-265.4-273.3± 1.6kJ/mol62.0248 ±
0.0012
107-32-4*2
Hydroxyoxomethoxy O[C](=O)[O]-358.9-365.0± 1.5kJ/mol61.0168 ±
0.0012
38330-85-7*0
Hydroperoxycarbonyl OO[C]=O-73.0-76.8± 1.7kJ/mol61.0168 ±
0.0012
153751-35-0*0
Nitrosodioxaziridine O=NN1OO1413.6407.6± 1.8kJ/mol76.01168 ±
0.00091
132871-99-9*1
Trioxidaniumyl O[O+]O925.5916.2± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*2
Oxywater [OH2][O]64.858.3± 1.3kJ/mol34.01468 ±
0.00062
171363-09-0*0
Perchloric acid OCl(=O)(=O)=O13.21.8± 1.8kJ/mol100.4582 ±
0.0015
7601-90-3*0
Dinitrogen tetraoxide O=N(=O)N(=O)=O20.1510.86± 0.14kJ/mol92.0111 ±
0.0012
10544-72-6*0
Propan-1-yl-3-ylidene [CH2]C[CH]554.2545.6± 1.3kJ/mol41.0718 ±
0.0024
*50457-59-5*2
1-Propenylidene CC=[C]392.3388.0± 1.1kJ/mol40.0639 ±
0.0024
70277-78-0*1
1-Propynyl CC#[C]528.30526.12± 0.70kJ/mol39.0559 ±
0.0024
89342-91-6*0
Hydroxyaminiumyl [N+]O1161.11158.2± 1.4kJ/mol31.01353 ±
0.00032
63559-88-6*0
Cycloprop-2-enyl C1=C[CH]1490.22485.67± 0.60kJ/mol39.0559 ±
0.0024
28933-84-8*0
2-Propen-1-yl-3-ylidene [CH2]C=[C]556.56554.30± 0.90kJ/mol39.0559 ±
0.0024
202744-74-9*0
Cyclopropenylidene C1=C=C1497.03496.07± 0.46kJ/mol38.0480 ±
0.0024
16165-40-5*0
2-Propynylidyne anion C#C[C-]540.01544.79± 0.83kJ/mol37.0406 ±
0.0024
82893-67-2*0
t-Butylium C[C+](C)C733.76710.48± 0.98kJ/mol57.1137 ±
0.0033
14804-25-2*0
t-Butyl anion C[C-](C)C76.151.3± 1.5kJ/mol57.1148 ±
0.0033
65114-21-8*0
iso-Butyl CC(C)[CH2]96.9172.92± 0.92kJ/mol57.1143 ±
0.0033
4630-45-9*0
Methylcyclopropane CC1CC147.824.5± 1.3kJ/mol56.1063 ±
0.0032
594-11-6*0
Ethanol CCO-269.75-277.51± 0.22kJ/mol46.0684 ±
0.0017
64-17-5*500
2-Hydroxyethyl [CH2]CO-5.5-17.9± 1.3kJ/mol45.0605 ±
0.0017
4422-54-2*3
Hydroxyamidogen [NH]O123.4116.8± 1.7kJ/mol32.02202 ±
0.00034
13940-32-4*2
Vinyl alcohol cation C=C[OH+]786.75775.52± 0.85kJ/mol44.0520 ±
0.0017
57239-63-1*1
Vinoxy cation [CH2+]C=O1020.11013.1± 1.5kJ/mol43.0441 ±
0.0016
*35731-40-9*1
Vinoxide [CH2-]C=O-153.04-160.10± 0.68kJ/mol43.0452 ±
0.0016
35731-40-9*0
2-Hydroxyethenyl [CH]=CO138.01131.27± 0.92kJ/mol43.0446 ±
0.0016
108665-16-3*21
Hydroxyaminylium [NH+]O1019.51012.4± 2.5kJ/mol32.02147 ±
0.00034
66097-71-0*1
Oxiranyl anion C1[CH-]O1121.2113.2± 1.5kJ/mol43.0452 ±
0.0016
72722-59-9*2
Acetic acid CC(=O)O-485.18± 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=CO1389.8385.7± 1.4kJ/mol42.0367 ±
0.0016
157-18-6*12
Bifluoride F.[F-]-68.0-67.6± 1.6kJ/mol39.005295 ±
0.000070
*18130-74-0*1
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-249.42-273.52± 0.36kJ/mol60.0950 ±
0.0025
67-63-0*0
Dihydrogen fluoride anion F.[H-]133.2131.9± 1.6kJ/mol21.01483 ±
0.00014
117339-92-1*1
Cyanate N#C[O-]-221.21-221.43± 0.53kJ/mol42.01739 ±
0.00086
661-20-1*0
Nitrosomethylidyne [C]N=O388.8390.2± 1.4kJ/mol42.01684 ±
0.00086
82267-15-0*0
Oxazirinyl [C]1=NO1450.0450.7± 1.5kJ/mol42.01684 ±
0.00086
228850-18-8*0
Propionic acid CCC(=O)O-436.41-454.31± 0.60kJ/mol74.0785 ±
0.0025
79-09-4*1
2-Methoxy-2-oxoethyl [CH2]C(=O)OC-203.4-218.7± 1.6kJ/mol73.0706 ±
0.0025
54668-31-4*1
(Acetyloxy)methyl CC(=O)O[CH2]-200.7-214.5± 1.6kJ/mol73.0706 ±
0.0025
2887-49-2*1
Dimethylmethyleneammonium C[N+](C)[CH2]696.4671.3± 1.4kJ/mol58.1018 ±
0.0025
28149-27-1*0
Hydrogen fluoride F-321.13± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*821
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
Dioxyamidogen [NH-][O+]=O240.4233.8± 1.8kJ/mol47.01348 ±
0.00061
71843-95-3*2
1,1,2,2-Tetrachloroethane C(Cl)(Cl)C(Cl)Cl-146.9-156.2± 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
Chlorine chlorite ClO[Cl]=O168.6166.2± 1.3kJ/mol102.9042 ±
0.0019
105206-44-8*3
Trichloroethene C(Cl)=C(Cl)Cl-11.3-14.6± 1.5kJ/mol131.3874 ±
0.0031
79-01-6*0
2-Hydrotrioxy anion [O][OH][O-]27.521.8± 1.4kJ/mol49.00669 ±
0.00090
*89965-38-8*0
Triiodide I[I-]I-51.41± 0.80kJ/mol380.713959 ±
0.000090
14900-04-0*800
Bromodichloromethane C(Cl)(Cl)Br-37.4-49.1± 1.2kJ/mol163.8280 ±
0.0022
75-27-4*0
Oxygen cation monohydrate [H]O[H][O+]1153.31147.8± 3.3kJ/mol34.01413 ±
0.00062
*31748-17-1*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-411.08-424.28± 0.47kJ/mol130.9194 ±
0.0013
1511-62-2*0
Chlorosyl hydride [H]Cl[O]141.9139.1± 1.7kJ/mol52.46004 ±
0.00095
71572-35-5*0
1,2-Difluoroethane C(F)CF-434.40-447.82± 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
Aquachlorine cation [Cl+]O([H])[H]821.8815.0± 1.7kJ/mol53.46743 ±
0.00096
142599-65-3*0
Phenylium c1cccc[c+]11250.61237.6± 1.6kJ/mol77.1034 ±
0.0048
17333-73-2*1
Peroxynitrous acid OON=O-0.19-7.24± 0.53kJ/mol63.01288 ±
0.00091
14691-52-2*2
Hydrogen difluoride cation [F+]F[H]1174.31171.3± 1.5kJ/mol39.004198 ±
0.000070
*126950-54-7*0
Chlorobenzene cation c1ccc(cc1)[Cl+]942.47928.55± 0.61kJ/mol112.5561 ±
0.0049
55450-32-3*0
Chlorobenzene c1ccc(cc1)Cl11.23± 0.59kJ/mol112.5566 ±
0.0049
108-90-7*500
m-Chlorophenyl c1(Cl)c[c]ccc1319.9309.1± 1.6kJ/mol111.5487 ±
0.0049
3474-40-6*0
p-Chlorophenyl c1(Cl)cc[c]cc1322.8312.0± 1.6kJ/mol111.5487 ±
0.0049
2396-00-1*0
o-Chlorophenyl c1(Cl)[c]cccc1327.2316.4± 1.6kJ/mol111.5487 ±
0.0049
3474-42-8*0
Bromobenzene cation c1ccc(cc1)[Br+]994.8973.2± 1.3kJ/mol157.0074 ±
0.0049
55450-33-4*0
Iodobenzene c1ccc(cc1)I112.8112.9± 1.1kJ/mol204.0084 ±
0.0048
591-50-4*500
Oxygen anion monohydrate [H]O[H][O-]-239.0-244.3± 3.0kJ/mol34.01523 ±
0.00062
31748-17-1*0
Nitrobenzene c1ccc(cc1)[N+](=O)[O-]81.461.4± 1.4kJ/mol123.1094 ±
0.0049
98-95-3*0
Methyl nitrite CON=O-55.68-66.35± 0.46kJ/mol61.0401 ±
0.0010
624-91-9*0
1,3-Butadien-2-ol C=C(O)C=C-53.9-70.8± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*11
(E)-Diazene cation [H]/N=[N+]/[H]1132.461125.52± 0.64kJ/mol30.02881 ±
0.00020
59952-06-6*0
Formaldonitrone [CH2]N[O]78.667.3± 1.5kJ/mol45.04066 ±
0.00088
67353-84-8*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-]519.0517.2± 1.4kJ/mol52.0547 ±
0.0024
321850-14-0*0
Silicon carbide [Si][C]-71.0-72.1± 1.4kJ/mol40.09620 ±
0.00085
409-21-2*501
Tetrafluorosilane [Si](F)(F)(F)F-1609.28-1614.79± 0.69kJ/mol104.07911 ±
0.00030
7783-61-1*0
Iminomethyl anion [CH-]=N237.3233.5± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*1
Chlorohydrofluorine cation ClF[H+]1000.8998.1± 2.1kJ/mol55.45849 ±
0.00090
70110-63-3*0
Dioxymethylidyne [C]O[O]299.8301.1± 1.7kJ/mol44.00950 ±
0.00100
791121-04-5*0
Diazenide N#N.[H-]175.6176.7± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*100
Cyanogen iodide anion IC#[N-]86.588.9± 8.1kJ/mol152.92246 ±
0.00080
1356929-44-6*0
Methanol CO-235.31-238.64± 0.16kJ/mol32.04186 ±
0.00090
67-56-1*500
Formaldehyde cation C=[O+]944.864941.243± 0.098kJ/mol30.02543 ±
0.00087
54288-05-0*0
Iodine [I]107.157106.757± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*1
Isoformyl anion [C][O].[H-]267.4268.0± 1.6kJ/mol29.01859 ±
0.00086
81747-63-9*2
Fluoronium [H][F+][H]774.11771.17± 0.88kJ/mol21.01373 ±
0.00014
12206-67-6*0
Hydrogen fluoride F-321.12± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*904
Carbide [C]=[C-]504.74511.31± 0.39kJ/mol24.0219 ±
0.0016
12595-78-7*0
2-Propenylidene [CH]C=C417.4409.9± 1.5kJ/mol40.0639 ±
0.0024
19527-08-3*11
2-Propenylidene [CH]C=C452.59445.45± 0.91kJ/mol40.0639 ±
0.0024
19527-08-3*2
Fluoronium [H][F+][H]1490.11491.5± 1.9kJ/mol21.01373 ±
0.00014
12206-67-6*1
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=11944.71952.6± 1.9kJ/mol36.0316 ±
0.0024
154702-35-9*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]597.6599.3± 1.3kJ/mol38.0480 ±
0.0024
67152-18-5*3
Propenediylidene [CH][CH][C]796.1797.3± 1.4kJ/mol38.0480 ±
0.0024
60731-11-5*0
n-Butylium CCC[CH2+]827.5803.1± 1.2kJ/mol57.1137 ±
0.0033
25453-90-1*0
Dihydrogen fluoride anion [F-].[H][H]-257.0-260.1± 1.9kJ/mol21.01483 ±
0.00014
*117339-92-1*2
Dibromide Br[Br-]-199.2-213.3± 2.0kJ/mol159.8085 ±
0.0020
12595-70-9*0
Dioxygenyl ion monohydrate O.O=[O+]828.5821.4± 2.1kJ/mol50.01353 ±
0.00091
11083-61-7*0
iso-Hexane CCCC(C)C-134.65-173.91± 0.84kJ/mol86.1754 ±
0.0049
107-83-5*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
Chloride [Cl-]-166.991± 0.023kJ/mol35.45325 ±
0.00090
16887-00-6*800
Ethyloxoniumylidene CC[O+]988.7975.0± 1.5kJ/mol45.0600 ±
0.0017
54387-07-4*0
Acetaldehyde cation CC=[O+]831.91821.93± 0.26kJ/mol44.0520 ±
0.0017
36505-03-0*0
Oxiranylium C1[CH+]O11233.41226.4± 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
Peroxychlorite O=ClO[O-]-34.3-34.3± 2.0kJ/mol83.4514 ±
0.0013
852472-63-0*0
Ketenyl anion [CH-]=C=O-48.48-47.55± 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
Fluorochlorate [Cl-]F-256.02-255.42± 0.81kJ/mol54.45165 ±
0.00090
12272-56-9*0
COC vdW [C]=O.[C]726.2734.6± 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
Hydroperoxymethyl [CH2]OO72.765.4± 1.4kJ/mol47.0333 ±
0.0010
74087-87-9*0
Nitrous acid N(=O)O-71.39-77.74± 0.26kJ/mol47.01348 ±
0.00061
7782-77-6*2
Formic acid cation [CH+](=O)O723.7716.7± 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
Chlorosyl chloride ClCl[O]134.5133.2± 1.4kJ/mol86.9048 ±
0.0018
86825-56-1*0
Trihydrogen dioxide anion [OH][H][OH-]-487.5-495.8± 1.1kJ/mol35.02317 ±
0.00064
12501-19-8*0
Isocyanic acid cation [NH+]=C=O1002.971000.31± 0.50kJ/mol43.02423 ±
0.00086
444010-28-0*0
Fulminic acid cation C#[N+][O]1215.71213.0± 1.3kJ/mol43.02423 ±
0.00086
114766-65-3*0
Acetic acid CC(=O)O-484.91± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*840
Dioxygen O=O94.41094.383± 0.000kJ/mol31.99880 ±
0.00060
7782-44-7*2
Acetyl chloride CC(=O)Cl-272.15± 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
2-Methoxy-2-oxoethyl [CH2]C(=O)OC-173.4-188.5± 1.8kJ/mol73.0706 ±
0.0025
54668-31-4*2
(Acetyloxy)methyl CC(=O)O[CH2]-174.4-187.4± 1.7kJ/mol73.0706 ±
0.0025
2887-49-2*2
NON [N]O[N]545.5542.6± 1.7kJ/mol44.01288 ±
0.00033
227934-46-5*0
Hydroxyoxoethenyl O[C]=C=O24.222.5± 1.8kJ/mol57.0281 ±
0.0017
702699-39-6*0
Oxalic acid C(=O)(C(=O)O)O-720.9-731.5± 1.3kJ/mol90.0349 ±
0.0020
144-62-7*0
Hydrogen difluoride F.[F]-187.4-187.1± 1.6kJ/mol39.004746 ±
0.000070
12528-21-1*2
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-108.68-128.09± 0.43kJ/mol153.8215 ±
0.0037
56-23-5*500
Dichloromethylene anion [C-](Cl)Cl75.6377.91± 0.77kJ/mol82.9166 ±
0.0020
118364-73-1*0
Azanylium [NH2+]1266.551264.48± 0.11kJ/mol16.02207 ±
0.00016
15194-15-7*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
Hydrogen fluoride F-321.16± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*822
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-165.74± 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
Oxochloronium [Cl+]=O1150.861150.69± 0.66kJ/mol51.45155 ±
0.00095
12301-79-0*0
Ethylene cation C=[CH2+]1075.161067.95± 0.12kJ/mol28.0526 ±
0.0016
34470-02-5*0
Pentachloroethane C(C(Cl)(Cl)Cl)(Cl)Cl-151.3-157.2± 1.9kJ/mol202.2928 ±
0.0048
76-01-7*0
Triiodide I[I-]I-254.3-257.5± 3.4kJ/mol380.713959 ±
0.000090
14900-04-0*0
Hydroxydioxonitrate O[N](=O)[O-]-193.2-197.6± 2.4kJ/mol63.01343 ±
0.00091
58875-09-5*0
Chloroform C(Cl)(Cl)Cl-133.48± 0.51kJ/mol119.3767 ±
0.0028
67-66-3*590
Chlorodibromomethane C(Cl)(Br)Br18.8-0.0± 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
1-Chloro ozone ClOO[O]226.3223.1± 2.3kJ/mol83.4509 ±
0.0013
141801-66-3*101
Bromochloromethane C(Cl)Br-28.2-42.2± 1.3kJ/mol129.3833 ±
0.0016
74-97-5*0
Hydrogen fluoride F-321.06± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*902
Ammonia N-80.886± 0.053kJ/mol17.03056 ±
0.00022
7664-41-7*1000
Fluoromethylene [CH]F148.38148.67± 0.43kJ/mol32.01704 ±
0.00080
13453-52-6*0
Azidonitrene [N]=NN=[N]692.1687.5± 1.4kJ/mol56.02696 ±
0.00028
147363-92-6*2
Ethyl iodide CCI8.70-7.18± 0.49kJ/mol155.9656 ±
0.0016
75-03-6*0
1,2-Dibromoacetylene BrC#CBr333.4322.5± 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
Chlorite O=[Cl-]=O-105.62-107.79± 0.35kJ/mol67.4520 ±
0.0011
14998-27-7*0
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
Ammonium nitrate [NH4+].O=[N+]([O-])[O-]-350.29-365.25± 0.18kJ/mol80.04344 ±
0.00095
6484-52-2*500
Benzene cation c1ccc(cc1)[H+]992.49976.03± 0.23kJ/mol78.1113 ±
0.0048
34504-50-2*0
Trifluoromethide [C-](F)(F)F-637.6-639.4± 1.8kJ/mol69.00646 ±
0.00080
54128-17-5*0
Diiodide I[I-]-178.13-180.72± 0.48kJ/mol253.809489 ±
0.000060
12190-71-5*0
Nitronium O=[N+]=O961.78958.23± 0.20kJ/mol46.00499 ±
0.00060
14522-82-8*0
m-Chlorophenide c1(Cl)c[c-]ccc1172.2162.0± 1.6kJ/mol111.5492 ±
0.0049
77748-34-6*0
p-Chlorophenide c1(Cl)cc[c-]cc1179.2168.7± 1.5kJ/mol111.5492 ±
0.0049
77748-42-6*0
o-Chlorophenide c1(Cl)[c-]cccc1158.2148.3± 1.6kJ/mol111.5492 ±
0.0049
72863-53-7*0
Vinylidene [C]=C610.39610.10± 0.50kJ/mol26.0373 ±
0.0016
2143-69-3*1
2-Oxopropylium CC(=[O+])[CH2]784.4770.6± 1.8kJ/mol57.0707 ±
0.0024
54088-52-7*0
Bromo hypobromite BrOBr120.5104.0± 1.2kJ/mol175.8074 ±
0.0020
21308-80-5*0
2,3-Butanedione CC(=O)C(=O)C-310.85-327.42± 0.66kJ/mol86.0892 ±
0.0033
431-03-8*0
1,2-Dibromoethane C(Br)CBr-11.6-38.5± 1.2kJ/mol187.8612 ±
0.0026
106-93-4*0
Peroxyimidogen [N]O[O]405.4403.4± 1.9kJ/mol46.00554 ±
0.00060
*60488-31-5*0
2-Propynal C#CC=O135.5133.4± 1.4kJ/mol54.0474 ±
0.0024
624-67-9*0
Fluorosyl fluoride FF[O]192.6193.1± 2.3kJ/mol53.99621 ±
0.00030
86825-57-2*1
1-Isocyanoethylidene C[C][N+]#[C-]545.4540.6± 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]634.4629.7± 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
Oxadiazirene N1=NO1351.7349.9± 1.7kJ/mol44.01288 ±
0.00033
227934-45-4*0
2-Cyanovinylium [CH+]=CC#N1517.21515.1± 1.8kJ/mol52.0542 ±
0.0024
85398-67-0*21
2-Cyanovinyl anion [CH-]=CC#N263.7260.8± 1.8kJ/mol52.0553 ±
0.0024
*85398-67-0*2
2-Isocyanovinyl [CH]=C[N+]#[C-]543.1541.2± 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
Fulvene C=C1C=CC=C1231.4215.3± 1.4kJ/mol78.1118 ±
0.0048
497-20-1*0
5-Methyl-1,3-cyclopentadiene CC1C=CC=C1133.4110.4± 1.5kJ/mol80.1277 ±
0.0048
96-38-8*0
Carbonic acid OC(=O)O-602.78-612.09± 0.75kJ/mol62.0248 ±
0.0012
463-79-6*0
Peroxyformic acid C(=O)OO-265.3-273.2± 1.5kJ/mol62.0248 ±
0.0012
107-32-4*3
Ethynylene cation [C]=[C+]1965.201971.79± 0.50kJ/mol24.0209 ±
0.0016
12595-79-8*0
Chlorine difluoride [Cl]FF22.523.9± 1.9kJ/mol73.44951 ±
0.00090
91483-78-2*0
Dihydrogen cation [H][H+]1488.3641488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*0
Hydroxylamine cation N[OH+]857.7847.9± 1.6kJ/mol33.02941 ±
0.00037
62675-55-2*0
Perchloryloxy O=Cl(=O)(=O)[O]248.6241.0± 1.8kJ/mol99.4503 ±
0.0015
12133-63-0*0
Hydrogen fluoride F-302.40± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*590
Cyclopropylidene [C]1CC1544.7535.8± 1.5kJ/mol40.0639 ±
0.0024
2143-70-6*2
Trioxidaniumyl O[O+]O935.2926.1± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*3
Propynylidene cation C#C[CH+]1410.81413.4± 1.3kJ/mol38.0474 ±
0.0024
75123-91-0*0
Propynylidene [CH]=C=[CH]597.3599.1± 1.1kJ/mol38.0480 ±
0.0024
67152-18-5*4
Perchlorate O=Cl(=O)(=O)[O-]-263.2-272.1± 2.2kJ/mol99.4508 ±
0.0015
14797-73-0*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
Deuterium atom cation [2H+]1532.2101534.123± 0.000kJ/mol2.01355319809 ±
0.00000000040
14464-47-2*0
Nitrogen hydride oxide [NH3+][O-]71.260.0± 1.5kJ/mol33.02996 ±
0.00037
38544-48-8*0
Hydrogen fluoride F-320.88± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*815
Iminomethyl anion [CH-]=N252.6248.9± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*2
n-Pentane CCCCC-156.05-173.02± 0.31kJ/mol72.1488 ±
0.0041
109-66-0*500
iso-Pentane CCC(C)C-178.43± 0.43kJ/mol72.1488 ±
0.0041
78-78-4*500
neo-Pentane CC(C)(C)C-189.90± 0.40kJ/mol72.1488 ±
0.0041
463-82-1*500
Cyclopentane C1CCCC1-105.12± 0.39kJ/mol70.1329 ±
0.0041
287-92-3*590
Aminooxy cation N[O+]946.09938.96± 0.79kJ/mol32.02147 ±
0.00034
*51375-41-8*0
Fluorosyl fluoride anion FF[O-]-147.2-146.9± 3.0kJ/mol53.99675 ±
0.00030
*86825-57-2*2
1,5-Hexadiene C=CCCC=C108.3883.79± 0.40kJ/mol82.1436 ±
0.0049
592-42-7*0
1,3-Butadiyne-1,4-diyl [C]#CC#[C]1052.471062.45± 0.68kJ/mol48.0428 ±
0.0032
78015-07-3*0
Trioxidanylium OO[O+]1085.21078.9± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*2
Ethoxy CC[O]1.27-12.16± 0.47kJ/mol45.0605 ±
0.0017
2154-50-9*0
Dihydrogen fluoride anion F.[H-]-61.9-60.5± 3.2kJ/mol21.01483 ±
0.00014
117339-92-1*2
Hydrogen cyanide cation [CH+]#N1442.521442.05± 0.20kJ/mol27.02483 ±
0.00081
12601-62-6*0
Dihydrooxooxygen cation [OH2][O+]994.8988.1± 1.6kJ/mol34.01413 ±
0.00062
177329-59-8*0
1-Hydrazinylium-1-yl [N+]N1143.41136.4± 1.4kJ/mol30.02881 ±
0.00020
63986-30-1*0
Chlorine oxide peroxide O=ClO[O]226.5227.4± 2.5kJ/mol83.4509 ±
0.0013
141801-67-4*100
Hydroxyaminylium [NH+]O1048.51041.4± 2.6kJ/mol32.02147 ±
0.00034
66097-71-0*2
Trioxodinitrate anion O=N-[N](=O)[O-]-104.3-107.5± 1.9kJ/mol76.01223 ±
0.00091
194856-62-7*100
(E)-Diazene anion [H]/N=[N-]/[H]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
*59952-06-6*0
Hydroxyamidogen anion [NH-]O90.784.8± 2.8kJ/mol32.02257 ±
0.00034
*66097-71-0*0
Dicarbon monoxide cation [C+]=C=O1433.91439.0± 2.1kJ/mol40.0203 ±
0.0016
12287-08-0*0
Nitrilomethylium [C+]#N1783.151786.63± 0.49kJ/mol26.01689 ±
0.00080
12539-57-0*0
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-]1288.2285.3± 2.2kJ/mol42.0372 ±
0.0016
*157-18-6*0
(Z)-Diazene cation [H]/N=[N+]\[H]1157.01150.1± 1.3kJ/mol30.02881 ±
0.00020
86631-37-0*0
Oxoethylidene [CH]C=O261.1258.2± 1.1kJ/mol42.0367 ±
0.0016
39920-84-8*1
Formic acid anion [CH-](=O)O-241.2-247.0± 1.9kJ/mol46.0259 ±
0.0010
19066-82-1*2
Nitrosyl nitrate O=N(O1)ON1=O70.662.3± 1.8kJ/mol92.0111 ±
0.0012
*15969-55-8*0
Dioxirane cation C1[O+]O11050.81043.1± 2.0kJ/mol46.0248 ±
0.0010
232262-10-1*0
Dioxymethyl cation C=[O+][O]1074.91068.5± 1.8kJ/mol46.0248 ±
0.0010
232262-11-2*0
Oxadiazirine anion [N-]1=NO195.195.5± 2.9kJ/mol44.01343 ±
0.00033
350586-31-1*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-80.26-76.54± 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
Nitrous acid N(=O)O-73.005-78.661± 0.079kJ/mol47.01348 ±
0.00061
7782-77-6*0
Cyanato cation N#C[O+]1261.471261.98± 0.58kJ/mol42.01629 ±
0.00086
17247-99-3*0
Ethane cation C[CH3+]1043.141029.13± 0.59kJ/mol30.0685 ±
0.0017
34488-65-8*0
Nitrosomethyliumylidene [C+]N=O1509.61510.7± 1.7kJ/mol42.01629 ±
0.00086
67197-19-7*0
Fulminate [C-]#[N+][O-]59.459.7± 1.8kJ/mol42.01739 ±
0.00086
28269-67-2*0
Acetic acid CC(=O)O-484.10-483.67± 0.18kJ/mol60.0520 ±
0.0017
64-19-7*500
Acetic acid CC(=O)O-484.71± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*825
Acetic acid CC(=O)O-484.90± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*835
Diazenide N#N.[H-]347.4344.6± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*1
Hydrogen bromide Br-120.16± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*834
Glyoxal O=CC=O-189.30-194.75± 0.75kJ/mol58.0361 ±
0.0017
107-22-2*2
Glyoxal O=CC=O-207.75-213.31± 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
Hydrogen bromide Br-120.46± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*844
Dimethylaminylium C[N+]C1040.21024.7± 1.8kJ/mol44.0752 ±
0.0017
49784-85-2*0
Diisocyanogen [C-]#[N+][N+]#[C-]610.3612.6± 1.8kJ/mol52.0349 ±
0.0016
78800-21-2*0
Dichloromethylene [C](Cl)Cl313.63314.84± 0.90kJ/mol82.9161 ±
0.0020
1605-72-7*1
Xenon cation [Xe+]1170.3541170.354± 0.0062kJ/mol131.2895 ±
0.0200
24203-25-6*0
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
Hydrogen fluoride F-321.18± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*823
Aminyliumyl [NH+]1659.031659.95± 0.24kJ/mol15.014131 ±
0.000099
19067-62-0*0
1,1,2-Trichloroethane C(Cl)C(Cl)Cl-188.6± 1.4kJ/mol133.4033 ±
0.0031
79-00-5*500
Ethylene anion C=[CH2-]232.0224.4± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*1
1,1,1,2-Tetrachloroethane C(Cl)C(Cl)(Cl)Cl-193.5± 1.1kJ/mol167.8481 ±
0.0039
630-20-6*500
Fluorodioxidenium FO[O+]1221.91219.5± 2.0kJ/mol50.99665 ±
0.00060
139584-95-5*0
Hexachloroethane C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl-216.5± 2.8kJ/mol236.7376 ±
0.0056
67-72-1*500
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
Fluorodioxidanide [F-]O[O]-256.8-256.1± 1.9kJ/mol50.99775 ±
0.00060
23553-17-5*0
Dioxofluorine [O]F[O]524.0523.2± 1.0kJ/mol50.99720 ±
0.00060
175861-93-5*0
Fluorochlorobromomethane C(F)(Cl)Br-218.2-230.9± 4.9kJ/mol147.3737 ±
0.0016
593-98-6*0
Methyleneoxonium cation [CH2+].O827.7818.2± 1.7kJ/mol32.04131 ±
0.00090
*177788-17-9*0
Fluoromethyliumyl [CH+]F1116.61116.9± 1.7kJ/mol32.01649 ±
0.00080
89877-52-1*0
Fluoromethylene anion [CH-]F95.9396.46± 0.61kJ/mol32.01759 ±
0.00080
71267-42-0*0
Azidonitrene [N]=NN=[N]660.8657.6± 1.6kJ/mol56.02696 ±
0.00028
147363-92-6*1
Polytetrafluoroethylene FC(C(F)(F)[*:1])(F)[*:2]-829.63± 0.58kJ/mol100.0150 ±
0.0016
9002-84-0*591
Tetraoxidanyl OOO[O]2.00.2± 3.0kJ/mol65.0055 ±
0.0012
69696-93-1*100
Hydroxymethanide [CH2-]O9.42.8± 1.7kJ/mol31.03447 ±
0.00088
55830-71-2*0
Trifluoride ion FF[F-]-348.8-349.7± 2.6kJ/mol56.9957582 ±
0.0000015
25730-99-8*0
Hydrogen chloride Cl-166.683± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*841
Nitric acid O[N+](=O)[O-]-206.32± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*839
trans-1,2-Difluoroethene F/C=C/F-299.66-306.10± 0.90kJ/mol64.0341 ±
0.0016
1630-78-0*0
Fluoroethynide [C]#C[F-]133.3137.5± 1.5kJ/mol43.0204 ±
0.0016
85905-56-2*0
Formyl fluoride cation F[CH+]=O816.6813.3± 1.3kJ/mol48.01589 ±
0.00086
99766-68-4*0
Formaldehyde C=O-105.378-109.217± 0.097kJ/mol30.02598 ±
0.00087
50-00-0*2
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
Nitric acid O[N+](=O)[O-]-179.01-173.29± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*500
Hydrogen peroxide cation O[OH+]930.98924.12± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*2
Fluoroniumyl ion [FH+]1275.5651275.796± 0.050kJ/mol20.005795 ±
0.000070
12381-92-9*0
1-Chloro ozone anion ClOO[O-]-108.9-111.4± 2.2kJ/mol83.4514 ±
0.0013
224299-15-4*3
o-Benzyne cation C1=CC#CC=[CH+]11392.71384.7± 1.7kJ/mol76.0954 ±
0.0048
70220-84-7*0
Hydrofluorate ion [FH-]-75.6-75.1± 1.8kJ/mol20.006892 ±
0.000070
37249-79-9*0
m-Benzyne cation c1[c]ccc[c+]11364.71356.1± 1.8kJ/mol76.0954 ±
0.0048
121058-08-0*0
p-Benzyne c1c[c]cc[c]1603.4594.1± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*1
Benzylium c1ccc(cc1)[CH2+]929.38909.89± 0.60kJ/mol91.1299 ±
0.0056
6711-19-9*0
Bifluoride F[H][F-]-705.20-709.05± 0.36kJ/mol39.005295 ±
0.000070
18130-74-0*0
1,3-Cycloheptadiene C1CC=CC=CC1123.2994.18± 0.78kJ/mol94.1543 ±
0.0056
4054-38-0*1
Tropylium [CH+]1C=CC=CC=C1898.0878.2± 1.1kJ/mol91.1299 ±
0.0056
26811-28-9*0
Dioxaziridinyl cation [N+]1OO11365.91363.3± 1.7kJ/mol46.00499 ±
0.00060
*66252-29-7*0
Acetylene anion C#[CH-]356.8356.7± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*1
Hydroxymethylene cation [CH+]O986.3982.7± 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
Acetone enol C=C(O)C-147.4-164.6± 1.3kJ/mol58.0791 ±
0.0025
29456-04-0*2
Hydroxymethylene anion [CH-]O160.2157.5± 1.7kJ/mol30.02653 ±
0.00087
207914-87-2*2
Dioxaziridinyl anion [N-]1OO1295.9293.4± 1.7kJ/mol46.00609 ±
0.00060
66252-31-1*0
cis-1,2-Dibromoethene C(\Br)=C\Br121.1100.5± 2.1kJ/mol185.8453 ±
0.0026
590-11-4*0
Hydroxymethylene anion [CH-]O334.0334.8± 2.1kJ/mol30.02653 ±
0.00087
207914-87-2*3
1,1-Dibromoethane CC(Br)Br-5.1-32.1± 1.8kJ/mol187.8612 ±
0.0026
557-91-5*0
Krypton hydride cation [Kr+][H]1106.331104.54± 0.69kJ/mol84.8074 ±
0.1000
37276-90-7*0
Hydrogen chloride Cl-165.557± 0.026kJ/mol36.46064 ±
0.00090
7647-01-0*825
Aquacarbon [C].O467.6465.5± 1.9kJ/mol30.02598 ±
0.00087
81434-73-3*102
Formaldoxime C=NO50.840.0± 1.8kJ/mol45.04066 ±
0.00088
75-17-2*2
Peroxyimidogen cation [N]O[O+]1409.61406.8± 1.9kJ/mol46.00499 ±
0.00060
*60488-32-6*0
Oxaziridine C1NO1115.8104.0± 2.1kJ/mol45.04066 ±
0.00088
6827-26-5*0
Cyanoethynyl [C]#CC#N715.6722.0± 1.2kJ/mol50.0388 ±
0.0024
62435-43-2*0
Hydrogen fluoride F-321.03± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*901
Trioxidanyl OO[O]26.3023.02± 0.19kJ/mol49.00614 ±
0.00090
12500-78-6*2
Peroxyimidogen anion [N]O[O-]165.0162.6± 1.7kJ/mol46.00609 ±
0.00060
60488-31-5*0
Aquacarbon cation [C+].O1196.11193.0± 1.7kJ/mol30.02543 ±
0.00087
*81434-73-3*0
Nirous oxide cation N#[N+]=O1329.671326.78± 0.12kJ/mol44.01233 ±
0.00033
12269-46-4*0
2-Methylene-2H-azirine C1=NC1=C404.2396.8± 1.7kJ/mol53.0627 ±
0.0024
110027-86-6*0
Hydroxylamine NO-15.4-25.9± 1.4kJ/mol33.02996 ±
0.00037
7803-49-8*2
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
Cyclobutenyl C1[CH]C=C1335.3322.8± 2.2kJ/mol53.0825 ±
0.0032
24669-29-2*0
Butyraldehyde CCCC=O-185.46-205.83± 0.85kJ/mol72.1057 ±
0.0033
123-72-8*0
Nitrosyl fluoride FN=O-85.81-88.18± 0.93kJ/mol49.00454 ±
0.00031
7789-25-5*0
Chloroallene C=C=CCl181.5174.9± 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
Chlorine difluoride anion [Cl-](F)F-504.9-505.7± 1.9kJ/mol73.45005 ±
0.00090
16892-05-0*0
Methylcyclopentane CC1CCCC1-69.36-106.32± 0.38kJ/mol84.1595 ±
0.0049
96-37-7*0
Dihydrogen fluoride F.H-55.9-54.9± 1.6kJ/mol21.01428 ±
0.00014
12592-22-2*1
1-Chloro ozone anion ClOO[O-]-66.8-68.7± 2.1kJ/mol83.4514 ±
0.0013
224299-15-4*1
Quartz -906.11-911.09± 0.94kJ/mol60.08430 ±
0.00067
14808-60-7*505
n-Hexane CCCCCC-179.97-198.63± 0.34kJ/mol86.1754 ±
0.0049
110-54-3*500
Cyclohexane C1CCCCC1-156.14± 0.33kJ/mol84.1595 ±
0.0049
110-82-7*500
Aminooxy anion N[O-]47.440.5± 1.7kJ/mol32.02257 ±
0.00034
51375-41-8*0
iso-Proplylide C[CH-]C128.5110.1± 1.6kJ/mol43.0882 ±
0.0024
25012-80-0*0
Aminomethyliumylidene [C+]N1168.31165.1± 2.2kJ/mol28.03277 ±
0.00082
86784-42-1*0
1-Hydroxyethanide C[CH-]O-20.3-33.7± 2.2kJ/mol45.0610 ±
0.0017
88032-18-2*0
Nitrosyl nitrate O=NO[N+](=O)[O-]48.340.3± 1.8kJ/mol92.0111 ±
0.0012
15969-55-8*1
Acetaldehyde anion CC=[O-]-62.2-72.5± 2.2kJ/mol44.0531 ±
0.0017
60427-04-5*0
1-Hydroxyethenyl C=[C]O121.31114.93± 0.99kJ/mol43.0446 ±
0.0016
81847-74-7*0
Ozone cation O=[O+]=O1352.8711350.531± 0.041kJ/mol47.99765 ±
0.00090
12596-82-6*0
Deuterium hydride cation [H][2H+]1490.4981490.587± 0.000kJ/mol3.021493 ±
0.000070
12181-16-7*0
Ketene cation C=C=[O+]882.22879.05± 0.12kJ/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
Methylaminilium C[NH+]1134.91125.1± 2.1kJ/mol30.04865 ±
0.00085
49784-84-1*0
Oxoethenylium [CH+]=C=O1139.71142.4± 2.1kJ/mol41.0282 ±
0.0016
92056-63-8*0
Trioxidanylium OO[O+]1070.41064.2± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*0
Chloroniumyl ion [ClH+]1137.7971137.731± 0.0051kJ/mol36.46009 ±
0.00090
12258-94-5*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
Hydrooxonitrate [NH-]=O78.5975.68± 0.99kJ/mol31.01463 ±
0.00032
66057-02-1*0
Methyl hydroperoxide cation C[O+]O833.4819.3± 2.2kJ/mol48.0407 ±
0.0010
112465-88-0*0
Dibromine BrBr-2.16± 0.20kJ/mol159.8080 ±
0.0020
7726-95-6*800
Methoxyoxoniumylidene CO[O+]1013.651004.82± 0.69kJ/mol47.0328 ±
0.0010
86475-50-5*0
Hydroxyimidogen anion [N-]O229.8227.4± 2.2kJ/mol31.01463 ±
0.00032
*35337-59-8*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-]54.949.8± 1.4kJ/mol46.0259 ±
0.0010
93207-29-5*0
Hydrogen chloride Cl-166.637± 0.025kJ/mol36.46064 ±
0.00090
7647-01-0*840
Hydrogen bromide Br-120.39± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*952
Cyclopropylide C1C[CH-]1264.7251.9± 1.8kJ/mol41.0723 ±
0.0024
1724-45-4*0
H-CO2 vdW complex [H].O=C=O-178.3-177.5± 2.1kJ/mol45.0174 ±
0.0010
*2564-83-2*100
Chlorosyl chloride cation ClCl[O+]1132.61130.8± 2.0kJ/mol86.9043 ±
0.0018
*86825-56-1*0
Hydrogen bromide Br-120.41± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*842
2-Propanol CC(O)C-306.15-318.96± 0.36kJ/mol60.0950 ±
0.0025
67-63-0*500
1-Propanol CCCO-290.53-302.71± 0.24kJ/mol60.0950 ±
0.0025
71-23-8*500
Hydroxyoxoammoniumyl O[N+]=O984.1977.7± 1.8kJ/mol47.01293 ±
0.00061
80371-48-8*0
Isocyanomethylium [CH2+][N+]#[C-]1272.81270.6± 2.2kJ/mol40.0435 ±
0.0016
78269-43-9*0
Dinitrogen pentoxide O=[N+]([O-])O[N+](=O)[O-]-41.04± 0.42kJ/mol108.0105 ±
0.0015
10102-03-1*500
1,2-Propadien-1-yl-3-ylidene anion [C]=C=[C-]622.0629.4± 1.3kJ/mol36.0326 ±
0.0024
109292-47-9*0
Oxazirinyl cation [C+]1=NO11565.41566.1± 2.3kJ/mol42.01629 ±
0.00086
*228850-18-8*0
Oxazirinyl anion [C-]1=NO1448.1448.9± 2.4kJ/mol42.01739 ±
0.00086
28269-68-3*0
Chlorosyl chloride anion ClCl[O-]-185.4-184.7± 2.3kJ/mol86.9053 ±
0.0018
*86825-55-0*0
1-Propenylidene CC=[C]630.3622.8± 1.7kJ/mol40.0639 ±
0.0024
70277-78-0*2
2-Chloro ozone anion ClO([O])[O-]-103.4-105.6± 3.2kJ/mol83.4514 ±
0.0013
*141801-67-4*0
Hydrogen bromide Br-120.36± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*841
1-Methoxyethenol C=C(O)OC-284.9-304.2± 1.7kJ/mol74.0785 ±
0.0025
4453-91-2*1
Hydrogen chloride Cl-165.546± 0.027kJ/mol36.46064 ±
0.00090
7647-01-0*953
Chloryl chloride ClCl([O])[O]126.1122.1± 1.7kJ/mol102.9042 ±
0.0019
117489-73-3*0
Trifluorine cation FF[F+]1529.51527.4± 2.3kJ/mol56.9946610 ±
0.0000015
64710-22-1*0
Ethanium [CH3+][H][CH3]888.7870.3± 1.8kJ/mol31.0764 ±
0.0017
24669-33-8*2
Ethyl formate C(=O)OCC-426.0± 1.2kJ/mol74.0785 ±
0.0025
109-94-4*500
Ethanium [CH3+][H][CH3]895.1877.3± 1.9kJ/mol31.0764 ±
0.0017
24669-33-8*3
Propionic acid CCC(=O)O-415.8-433.4± 1.4kJ/mol74.0785 ±
0.0025
79-09-4*2
Methylimidogen anion C[N-]321.1313.5± 1.4kJ/mol29.04181 ±
0.00083
82539-34-2*0
Cyanogen cation N#C[C+]#N1598.231600.45± 0.43kJ/mol52.0343 ±
0.0016
37354-81-7*0
Isocyanogen [C-]#[N+]C#N411.0413.3± 1.6kJ/mol52.0349 ±
0.0016
83951-85-3*0
Hydrogen difluoride cation [F+]F[H]1174.31171.3± 1.5kJ/mol39.004198 ±
0.000070
*126950-54-7*2
Diazoethenylidene [N-]=[N+]=C=[C]658.7661.3± 1.8kJ/mol52.0349 ±
0.0016
130760-10-0*0
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-321.17± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*905
Tribromine BrBrBr155.9134.2± 3.2kJ/mol239.7120 ±
0.0030
11094-39-6*0
Cyanoaminylium [NH+]C#N1363.21360.1± 2.5kJ/mol41.03157 ±
0.00082
205443-18-1*0
Cyanoamidogen anion [NH-]C#N70.867.8± 1.4kJ/mol41.03267 ±
0.00082
67131-47-9*0
Ammonium radical [NH4]190.01179.42± 0.43kJ/mol18.03850 ±
0.00029
92075-50-8*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
Hydroperoxyimidogen OO[N]103.399.8± 2.4kJ/mol47.01348 ±
0.00061
877456-58-1*1
Trichloromethylium [C+](Cl)(Cl)Cl854.35852.84± 0.93kJ/mol118.3683 ±
0.0028
27130-34-3*0
Peroxychloric acid O=Cl(=O)OO77.569.3± 2.6kJ/mol100.4582 ±
0.0015
177778-91-5*0
Dichloromethyliumyl [C+](Cl)Cl1121.61122.6± 1.8kJ/mol82.9156 ±
0.0020
55945-51-2*0
Tribromide Br[Br-]Br-287.4-308.4± 1.9kJ/mol239.7125 ±
0.0030
14522-80-6*0
Cyanogen bromide anion BrC#[N-]58.154.5± 3.8kJ/mol105.9220 ±
0.0013
54092-05-6*0
Hydrogen chloride Cl-166.712± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*951
Methyleneaminylium C=[N+]1456.61453.0± 2.1kJ/mol28.03277 ±
0.00082
53518-13-1*1
Imidogen anion [NH-]322.62322.66± 0.16kJ/mol15.015229 ±
0.000099
23841-33-0*0
Methanimine cation C=[NH+]1056.11049.3± 1.8kJ/mol29.04071 ±
0.00083
65130-65-6*0
2-Cyclopropyn-1-ylidene C1=C=C=1993.21000.1± 2.5kJ/mol36.0321 ±
0.0024
102508-15-6*2
Ethylene anion C=[CH2-]231.5225.4± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*2
Hydrogen fluoride F-321.07± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*903
Nitric acid cation O[N+](=O)[O]1029.141020.08± 0.69kJ/mol63.01233 ±
0.00091
272109-63-4*0
Triazirinylium ion [N]1N=[N+]11608.91605.9± 1.6kJ/mol42.01967 ±
0.00021
92220-05-8*0
2-Propenylidyne anion C=C[C-]464.4460.7± 1.7kJ/mol39.0565 ±
0.0024
120126-89-8*0
1-Ethylium-1-yl [CH+]C1182.01174.6± 3.2kJ/mol28.0526 ±
0.0016
85944-79-2*0
Ethylidene anion [CH-]C325.6318.3± 1.8kJ/mol28.0537 ±
0.0016
35829-99-3*0
Triazirine N1N=N1464.1457.7± 2.6kJ/mol43.02816 ±
0.00022
157-29-9*0
Chloromethane cation C[Cl+]1014.961008.19± 0.25kJ/mol50.4867 ±
0.0012
12538-71-5*0
Methanol anion [CH3-]O-89.1-99.8± 2.8kJ/mol32.04241 ±
0.00090
68474-04-4*0
Methanimine anion C=[NH-]224.4217.2± 2.2kJ/mol29.04181 ±
0.00083
127593-73-1*0
2-Propen-3-yliumylidene [CH]C=[CH+]1494.41491.4± 1.7kJ/mol39.0554 ±
0.0024
84654-86-4*0
Bromofluoromethane C(F)Br-197.4-211.9± 4.9kJ/mol112.9290 ±
0.0013
373-52-4*0
Hypochlorous acid cation O[Cl+]998.91995.87± 0.90kJ/mol52.45949 ±
0.00095
71606-47-8*0
Fluorodibromomethane C(F)(Br)Br-159.7-179.3± 4.9kJ/mol191.8250 ±
0.0022
1868-53-7*0
2-Propenylidene anion [CH]C=[CH-]535.7532.4± 1.7kJ/mol39.0565 ±
0.0024
98705-30-7*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
Hypochlorous acid anion O[Cl-]198.7198.4± 2.5kJ/mol52.46059 ±
0.00095
34524-94-2*0
Ammonium chloride [NH4+].[Cl-]-311.557-314.718± 0.063kJ/mol53.49120 ±
0.00095
12125-02-9*510
Chloryl ion O=[Cl+]=O1100.151097.49± 0.52kJ/mol67.4510 ±
0.0011
25052-55-5*0
2-Cyclopropyn-1-yl anion [C-]1=C=C=1664.8672.1± 1.6kJ/mol36.0326 ±
0.0024
500574-36-7*0
Chlorine difluoride cation [Cl+]FF1346.31344.9± 2.1kJ/mol73.44896 ±
0.00090
86825-59-4*0
Ammonium bromide [NH4+].[Br-]-253.41-269.98± 0.17kJ/mol97.9425 ±
0.0010
12124-97-9*510
1,2-Difluoroacetylene cation F[C+]#CF1081.71084.5± 1.3kJ/mol62.0177 ±
0.0016
268566-70-7*0
Hydrogen chloride Cl-165.946± 0.026kJ/mol36.46064 ±
0.00090
7647-01-0*907
Difluorophosgene cation C(F)(F)=[O+]653.45650.69± 0.51kJ/mol66.00636 ±
0.00085
73256-56-1*0
Formaldehyde anion C=[O-]-26.7-28.3± 2.0kJ/mol30.02653 ±
0.00087
27837-46-3*0
Triiodine cation I[I+]I946.1941.0± 4.1kJ/mol380.712861 ±
0.000090
12596-32-6*0
Formaldehyde C=O196.013192.682± 0.097kJ/mol30.02598 ±
0.00087
50-00-0*1
Propynylidene [CH]=C=[CH]543.39546.39± 0.63kJ/mol38.0480 ±
0.0024
67152-18-5*0
Chloro(chlorooxy)methylene Cl[C]OCl73.573.7± 3.6kJ/mol98.9155 ±
0.0020
479587-31-0*2
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-144.12± 0.95kJ/mol187.8181 ±
0.0022
593-95-3*590
2-Chloroethanol ClCCO-314.92± 0.53kJ/mol80.5132 ±
0.0019
107-07-3*590
2-Bromoethanol BrCCO-274.57± 0.47kJ/mol124.9645 ±
0.0019
540-51-2*590
Water O-285.831± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*589
Hydrogen fluoride F-321.06± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*888
Phenylium c1cccc[c+]11148.421135.64± 0.85kJ/mol77.1034 ±
0.0048
17333-73-2*2
1-Cyclopropene-1,2-diyl C1[C]=[C]1791.0790.5± 1.5kJ/mol38.0480 ±
0.0024
202744-75-0*0
Nitrate O=[N+]([O-])[O-]-206.64± 0.18kJ/mol62.00549 ±
0.00090
14797-55-8*800
m-Benzyne anion c1[c]ccc[c-]1444.0435.1± 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
Oxobromonium Br[O+]1139.41131.7± 1.5kJ/mol95.9029 ±
0.0010
142315-39-7*0
Tetranitrogen cation [N]=NN=[N+]1392.81392.5± 1.5kJ/mol56.02641 ±
0.00028
12185-04-5*0
Cycloheptane C1CCCCCC1-126.90-156.79± 0.51kJ/mol98.1861 ±
0.0057
291-64-5*500
Cyclopropenyliumdiyl [CH+]1C#C11692.11695.0± 1.9kJ/mol37.0395 ±
0.0024
127476-05-5*0
Ethylbenzene c1ccc(cc1)CC-12.56± 0.55kJ/mol106.1650 ±
0.0064
100-41-4*500
Phenylacetylene c1ccc(cc1)C#C273.4± 1.1kJ/mol102.1332 ±
0.0064
536-74-3*500
Cyclopropynyl anion [CH-]1C#C1518.08521.07± 0.89kJ/mol37.0406 ±
0.0024
136861-42-2*0
Phenyloxoniumylidene c1ccc(cc1)[O+]901.4887.1± 2.2kJ/mol93.1028 ±
0.0048
41071-17-4*0
Anisole c1ccccc1OC-47.81-72.66± 0.80kJ/mol108.1378 ±
0.0056
100-66-3*0
Hydrogen fluoride F-321.13± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*890
Fluorobenzene c1ccc(cc1)F-151.81-149.39± 0.89kJ/mol96.1023 ±
0.0048
462-06-6*500
Carbon atom [C]711.397716.882± 0.047kJ/mol12.01070 ±
0.00080
7440-44-0*1
Acetylene anion C#[CH-]380.1380.3± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*2
Aminomethyliumyl [CH][NH2+]1039.51031.9± 2.3kJ/mol29.04071 ±
0.00083
89302-94-3*0
Fluorine atom cation [F+]1758.3101760.608± 0.048kJ/mol18.99785462 ±
0.00000050
14701-13-4*0
Bromobenzene c1ccc(cc1)Br59.9± 1.3kJ/mol157.0079 ±
0.0049
108-86-1*500
Bromine dioxide [O]Br[O]167.1157.5± 3.0kJ/mol111.9028 ±
0.0012
21255-83-4*0
Hydrogen fluoride F-321.17± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*891
Acetone CC(=O)C-245.06-248.18± 0.36kJ/mol58.0791 ±
0.0025
67-64-1*500
Hypofluorous acid cation O[F+]1142.011138.99± 0.87kJ/mol36.00519 ±
0.00031
90243-22-4*0
Propionaldehyde CCC=O-218.18-216.72± 0.29kJ/mol58.0791 ±
0.0025
123-38-6*500
Diazenium N[NH+]968.56957.30± 0.73kJ/mol31.03675 ±
0.00025
37369-93-0*0
trans-1,2-Dibromoethene C(\Br)=C/Br121.4101.6± 2.1kJ/mol185.8453 ±
0.0026
590-12-5*0
1,1-Dibromoethene C=C(Br)Br125.3104.9± 2.2kJ/mol185.8453 ±
0.0026
593-92-0*0
Norbornadiene C1C2C=CC1C=C2267.4241.9± 1.0kJ/mol92.1384 ±
0.0056
121-46-0*0
Monoammonium succinate OC(=O)CCC(=O)[O-].[NH4+]-1067.97± 0.72kJ/mol135.1186 ±
0.0035
38457-08-8*510
Diammonium succinate [O-]C(=O)CCC(=O)[O-].[NH4+].[NH4+]-1182.52± 0.48kJ/mol152.1492 ±
0.0035
2226-88-2*510
Hydrogen chloride Cl-165.979± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*829
Bicyclo[1.1.0]buta-1,3-diene-2,4-diyl C12=[C]C2=[C]11047.501055.09± 0.73kJ/mol48.0428 ±
0.0032
12184-80-4*0
Fluorosyl fluoride anion FF[O-]-56.6-55.7± 2.4kJ/mol53.99675 ±
0.00030
*86825-57-2*1
Acrolein C=CC=O-46.6-56.9± 1.4kJ/mol56.0633 ±
0.0024
107-02-8*2
Ethenedione O=C=C=O14.016.4± 2.3kJ/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
Methylammoniumyl C[NH2+]865.81851.88± 0.28kJ/mol31.05659 ±
0.00088
34516-31-9*0
Methylamine anion C[NH2-]84.169.3± 2.8kJ/mol31.05769 ±
0.00088
81096-79-9*0
Aminomethyl anion [CH2-]N209.4199.1± 2.1kJ/mol30.04975 ±
0.00085
74215-21-7*0
Chlorine difluoride anion [Cl-]FF-319.0-319.0± 2.2kJ/mol73.45005 ±
0.00090
91419-41-9*0
Hypofluorous acid anion O[F-]155.3154.7± 2.6kJ/mol36.00629 ±
0.00031
36505-07-4*2
Fluorosyl fluoride cation FF[O+]1413.01413.4± 3.5kJ/mol53.99566 ±
0.00030
*86825-50-5*1
3-Imino-2-propen-1-ylidene [CH]C=C=N532.9527.8± 1.8kJ/mol53.0627 ±
0.0024
916765-05-4*12
Dioxodiazoxane O=NON=O109.3105.2± 1.8kJ/mol76.01168 ±
0.00091
122413-35-8*2
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]604.4599.6± 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
Peroxyhypochlorite ClO[O-]-249.22-248.20± 0.37kJ/mol67.4520 ±
0.0011
224299-14-3*0
1-Cyanovinylium C=[C+]C#N1318.31317.1± 2.2kJ/mol52.0542 ±
0.0024
85399-09-3*0
Nirous oxide anion [N-]=[N]=O99.296.7± 1.9kJ/mol44.01343 ±
0.00033
12274-12-3*0
Carbon atom [C]833.328838.475± 0.047kJ/mol12.01070 ±
0.00080
7440-44-0*2
Dioxygen O=O-0.000-0.000± 0.000kJ/mol31.99880 ±
0.00060
7782-44-7*1
Aminomethylene anion [CH][NH2-]353.0346.1± 2.3kJ/mol29.04181 ±
0.00083
207914-86-1*0
Tetraoxygen O=O.O=O145.8142.2± 3.8kJ/mol63.9976 ±
0.0012
12596-83-7*22
Hypobromous acid cation O[Br+]974.99964.37± 0.53kJ/mol96.9108 ±
0.0010
154804-02-1*0
Tetrahedrane C12C3C1C23548.9540.5± 1.5kJ/mol52.0746 ±
0.0032
157-39-1*0
Bromine atom [Br]117.917111.855± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*1
Cyanic azide N#CN=[N+]=[N-]502.7498.2± 1.9kJ/mol68.03766 ±
0.00085
764-05-6*0
Phenyl hydroperoxide c1ccc(cc1)OO12.9-6.1± 2.1kJ/mol110.1106 ±
0.0049
36112-26-2*0
Cyclopentene C1CC=CC14.41± 0.42kJ/mol68.1170 ±
0.0040
142-29-0*590
Methylcyclopentane CC1CCCC1-116.74-138.10± 0.38kJ/mol84.1595 ±
0.0049
96-37-7*500
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
Isopropylidene anion C[C-]C282.4268.3± 2.0kJ/mol42.0803 ±
0.0024
*121408-19-3*0
NON cation [N]O[N+]1443.91444.1± 2.8kJ/mol44.01233 ±
0.00033
*227934-46-5*0
Dioxohydrazine O=NN=O172.89171.13± 0.14kJ/mol60.01228 ±
0.00062
16824-89-8*2
Dioxodiazoxane O=NON=O125.7120.4± 2.1kJ/mol76.01168 ±
0.00091
122413-35-8*3
Acetic acid CC(=O)O-484.91± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*839
Trifluorine FFF80.681.9± 2.6kJ/mol56.9952096 ±
0.0000015
73455-86-4*0
Methyl acetate CC(=O)OC-445.75± 0.61kJ/mol74.0785 ±
0.0025
79-20-9*500
Isoprene CC(=C)C=C48.79± 0.69kJ/mol68.1170 ±
0.0040
78-79-5*500
Isodiazene anion [N-]N380.9374.0± 2.1kJ/mol30.02991 ±
0.00020
*63986-30-1*0
Hydronium radical O.[H]-18.5-21.6± 2.1kJ/mol19.02322 ±
0.00037
12168-76-2*100
Dihydrogen [H][H]1.4170.019± 0.000kJ/mol2.01588 ±
0.00014
1333-74-0*1
Carbon dioxide anion [C-](=O)=O-340.6-340.1± 2.2kJ/mol44.01005 ±
0.00100
14485-07-5*0
2-Hydroxyethenyl [CH]=CO143.9137.4± 1.1kJ/mol43.0446 ±
0.0016
108665-16-3*11
Isocyanic fluoride FN=[C]301.3303.1± 1.7kJ/mol45.01584 ±
0.00080
16992-26-0*0
2-Hydroxyethenyl [CH]=CO147.2140.9± 1.3kJ/mol43.0446 ±
0.0016
108665-16-3*22
Propionic acid CCC(=O)O-505.46-509.61± 0.18kJ/mol74.0785 ±
0.0025
79-09-4*500
Ethylene glycol OCCO-448.73-455.25± 0.37kJ/mol62.0678 ±
0.0018
107-21-1*500
2-Hydroxyethenyl [CH]=CO150.6144.5± 1.6kJ/mol43.0446 ±
0.0016
108665-16-3*12
Ammonia anion [NH3-]94.387.2± 2.4kJ/mol17.03111 ±
0.00022
37353-00-7*0
Oxalic acid C(=O)(C(=O)O)O-819.57-829.66± 0.42kJ/mol90.0349 ±
0.0020
144-62-7*500
Dimethylamine CNC-43.56± 0.38kJ/mol45.0837 ±
0.0017
124-40-3*500
Hydrogen bromide Br-120.26± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*839
Hydrogen difluoride cation [F+]F[H]1267.61265.4± 4.1kJ/mol39.004198 ±
0.000070
*126950-54-7*1
Trimethylamine CN(C)C-49.25± 0.98kJ/mol59.1103 ±
0.0025
75-50-3*500
Cyanogen anion N#CC#[N-]281.5284.7± 2.2kJ/mol52.0354 ±
0.0016
11118-88-0*0
1,3-Propanediyl [CH2]C[CH2]320.0308.1± 1.6kJ/mol42.0797 ±
0.0024
32458-33-6*1
n-Heptane CCCCCCC-201.72-224.17± 0.48kJ/mol100.2019 ±
0.0057
142-82-5*500
Diisocyanogen cation [C]#[N+][N+]#[C-]1824.81827.5± 3.3kJ/mol52.0343 ±
0.0016
*78800-21-2*1
Isocyanogen chloride ClN=[C]314.5316.2± 2.4kJ/mol61.4701 ±
0.0012
75754-69-7*0
Cyanoaminyliumyl [N]=[C+]=[N]1671.61672.9± 2.6kJ/mol40.02363 ±
0.00081
316122-03-9*0
Cyanoamidogen anion [N]=[C-]=[N]210.91210.84± 0.77kJ/mol40.02473 ±
0.00081
189879-95-6*0
n-Octane CCCCCCCC-226.66-249.78± 0.67kJ/mol114.2285 ±
0.0065
111-65-9*500
1,5-Hexadiene C=CCCC=C54.43± 0.32kJ/mol82.1436 ±
0.0049
592-42-7*500
Cyanamide NC#N58.89± 0.54kJ/mol42.04006 ±
0.00082
420-04-2*500
Dioxiranylidene anion [C-]1OO1-110.2-109.7± 3.0kJ/mol44.01005 ±
0.00100
*138832-58-3*0
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=N1578.8579.2± 2.7kJ/mol40.02418 ±
0.00081
253308-70-2*0
Dioxygen difluoride [O][O](F)F75.171.6± 3.6kJ/mol69.99561 ±
0.00060
183051-89-0*0
Trioxidanyl OO[O]25.3223.23± 0.13kJ/mol49.00614 ±
0.00090
12500-78-6*0
Ethynylene [C]=[C]827.55834.25± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*1
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
Isocyanogen bromide BrN=[C]341.4335.7± 3.4kJ/mol105.9214 ±
0.0013
65997-98-0*0
Dihydrogen fluoride F.H-56.5-54.1± 1.7kJ/mol21.01428 ±
0.00014
12592-22-2*2
1-Propynylium CC#[C+]1547.01545.1± 3.1kJ/mol39.0554 ±
0.0024
24858-94-4*0
Bromoniumyl [BrH+]1098.011090.17± 0.15kJ/mol80.9114 ±
0.0010
12258-64-9*0
Tetraoxodinitrogen cation O=N(=O)[N+](=O)=O1030.61025.1± 2.6kJ/mol92.0105 ±
0.0012
64476-91-1*0
Trihydrogen [H]1[H][H]1756.931754.146± 0.015kJ/mol3.02382 ±
0.00021
12184-91-7*2
Cycloprop-1-enylium C1C=[C+]11502.21497.9± 2.2kJ/mol39.0554 ±
0.0024
117067-78-4*0
Hydrochlorate ion [ClH-]-25.2-24.2± 2.5kJ/mol36.46119 ±
0.00090
63099-75-2*0
1,1,1-Trichloroethane CC(Cl)(Cl)Cl-177.54± 0.49kJ/mol133.4033 ±
0.0031
71-55-6*500
Cycloprop-1-enylide C1C=[C-]1373.4369.0± 2.2kJ/mol39.0565 ±
0.0024
80251-77-0*0
Acetonitrile CC#N40.59± 0.23kJ/mol41.0520 ±
0.0016
75-05-8*500
Isocyanogen iodide IN=[C]341.7342.0± 4.9kJ/mol152.92191 ±
0.00080
66004-32-8*0
Cycloprop-2-enylide C1=C[CH-]1514.8511.8± 2.2kJ/mol39.0565 ±
0.0024
20829-57-6*0
Isocyanogen iodide anion IN=[C-]123.0125.2± 9.3kJ/mol152.92246 ±
0.00080
*66004-32-8*0
Dioxymethylidyne cation [C+]O[O]1436.61439.0± 2.7kJ/mol44.00895 ±
0.00100
*791121-04-5*2
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
1,1-Dichloroethene C=C(Cl)Cl-23.80± 0.50kJ/mol96.9427 ±
0.0024
75-35-4*500
Chlorine chlorite ClO[Cl]=O177.4175.0± 2.2kJ/mol102.9042 ±
0.0019
105206-44-8*2
Perchloryl cation O=[Cl+](=O)[O]1252.11246.3± 2.5kJ/mol83.4504 ±
0.0013
23594-88-9*0
Dihydrogen cation [H][H+]1489.0601488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*1
Hydrogen fluoride F-321.03± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*887
Dichloromethane C(Cl)Cl-122.42± 0.54kJ/mol84.9320 ±
0.0020
75-09-2*590
Hydrogen chloride Cl-166.741± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*842
Methanol dimer CO.CO-398.5-419.2± 1.4kJ/mol64.0837 ±
0.0018
42845-44-3*0
Dioxymethylidyne cation [C+]O[O]1388.21391.7± 3.2kJ/mol44.00895 ±
0.00100
*791121-04-5*101
Difluoromethylene anion [C-](F)F-211.17-209.99± 0.60kJ/mol50.00805 ±
0.00080
66212-40-6*0
Fluoromethylidyne anion [C-]F200.8204.3± 1.9kJ/mol31.00965 ±
0.00080
33412-12-3*0
Cyclopropenylidene anion C1=[C-]=C1544.2543.8± 2.2kJ/mol38.0485 ±
0.0024
*16165-40-5*0
Tetraoxidanyl OOO[O]53.046.0± 5.1kJ/mol65.0055 ±
0.0012
69696-93-1*2
Difluorovinylidene [C]=C(F)F129.4130.7± 2.2kJ/mol62.0182 ±
0.0016
41895-33-4*0
Nitric acid O[N+](=O)[O-]-186.85± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*801
Fluoroethynylium [C+]#CF1536.21540.9± 2.3kJ/mol43.0193 ±
0.0016
268566-69-4*0
Peroxychlorous acid O=ClOO103.597.6± 2.5kJ/mol84.4588 ±
0.0013
177778-92-6*2
Bromoacetylene C#CBr282.1275.6± 1.6kJ/mol104.9333 ±
0.0019
593-61-3*0
Nitric acid O[N+](=O)[O-]-197.76± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*805
2-Oxo-1-ethylium-1-yl [CH+]C=O1289.41286.0± 2.5kJ/mol42.0361 ±
0.0016
214464-96-7*11
Oxoethylidene anion [CH-]C=O86.983.6± 2.1kJ/mol42.0372 ±
0.0016
106543-38-8*1
Chloro(chlorooxy)methylene Cl[C]OCl98.101.± 15.kJ/mol98.9155 ±
0.0020
479587-31-0*11
Paraformaldehyde C=O-179.2± 1.6kJ/mol30.02598 ±
0.00087
30525-89-4*500
Chlorooxomethylium Cl[C+]=O783.7783.9± 2.2kJ/mol63.4623 ±
0.0012
38264-03-8*0
Tetrazete N1=NN=N1764.9759.0± 1.8kJ/mol56.02696 ±
0.00028
42851-09-2*0
Oxygen atom hexacation [O+6]42035.2842037.14± 0.12kJ/mol15.99611 ±
0.00030
14158-22-6*0
2-Iodoethanol ICCO-207.2± 2.4kJ/mol171.9650 ±
0.0017
624-76-0*590
Tetraazatetrahedrane N12N3N1N23763.7757.2± 1.7kJ/mol56.02696 ±
0.00028
12596-63-3*0
1,3-Butadiyne cation C#CC#[CH+]1439.721441.58± 0.80kJ/mol50.0581 ±
0.0032
55468-55-8*0
Hydrogen difluoride cation F[H][F+]1241.1238.± 17.kJ/mol39.004198 ±
0.000070
126950-54-7*1
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
Nitric acid trihydrate O[N+](=O)[O-].O.O.O-1062.10-1055.25± 0.21kJ/mol117.0587 ±
0.0019
13444-83-2*500
o-Benzyne C1=CC#CC=C1625.5616.2± 1.1kJ/mol76.0960 ±
0.0048
462-80-6*1
Nitric acid monohydrate O[N+](=O)[O-].O-479.18-472.68± 0.19kJ/mol81.0282 ±
0.0012
13444-82-1*500
Dioxiranylidene cation [C+]1OO11409.11410.3± 2.6kJ/mol44.00895 ±
0.00100
*138832-57-2*0
2-Propen-3-ylium-1-ylidyne [CH][CH][C+]1791.11792.7± 2.6kJ/mol38.0474 ±
0.0024
161054-36-0*0
Ethyl hydroperoxide CCOO-205.± 21.kJ/mol62.0678 ±
0.0018
3031-74-1*500
m-Benzyne c1[c]ccc[c]1526.9518.4± 1.2kJ/mol76.0960 ±
0.0048
1828-89-3*0
Propenediylidene anion [CH][CH][C-]588.8590.0± 2.3kJ/mol38.0485 ±
0.0024
*161054-36-0*0
p-Benzyne cation c1c[c]cc[c+]11424.81417.6± 2.1kJ/mol76.0954 ±
0.0048
121058-09-1*0
p-Benzyne c1c[c]cc[c]1586.9577.5± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*0
Toluene c1ccc(cc1)C19.7211.97± 0.34kJ/mol92.1384 ±
0.0056
108-88-3*500
Cyclopentadienylium [CH+]1C=CC=C11087.601074.73± 0.92kJ/mol65.0927 ±
0.0040
29661-18-5*0
Triiodine III153.4149.4± 3.6kJ/mol380.713410 ±
0.000090
12596-31-5*0
Hydraziniumyl N[NH2+]886.6873.2± 2.0kJ/mol32.04469 ±
0.00031
20771-51-1*0
Cycloheptene C1CCC=CCC1-25.5-46.6± 1.7kJ/mol96.1702 ±
0.0057
628-92-2*500
Hydroxylamine NO-97.1± 2.2kJ/mol33.02996 ±
0.00037
7803-49-8*1000
Cycloheptatriene C1C=CC=CC=C1153.74144.95± 0.97kJ/mol92.1384 ±
0.0056
544-25-2*500
1-Propenylium CC=[CH+]1231.91221.6± 1.7kJ/mol41.0713 ±
0.0024
50457-58-4*2
Nitrosyl nitrite anion O=NON=[O-]-103.1-106.2± 2.8kJ/mol76.01223 ±
0.00091
*122413-35-8*1
Phenylethene c1ccc(cc1)C=C104.30± 0.48kJ/mol104.1491 ±
0.0064
100-42-5*500
Hydrazine NN57.2550.68± 0.18kJ/mol32.04524 ±
0.00031
302-01-2*500
Phenol c1ccc(cc1)O-146.55-162.39± 0.65kJ/mol94.1112 ±
0.0048
108-95-2*500
Formic acid C(=O)O-431.56-424.72± 0.20kJ/mol46.0254 ±
0.0010
64-18-6*500
1-Propenylide CC=[CH-]204.1192.8± 1.8kJ/mol41.0723 ±
0.0024
65887-20-9*2
Anisole c1ccccc1OC-119.58± 0.77kJ/mol108.1378 ±
0.0056
100-66-3*500
Peroxynitrous acid OON=O-5.81-11.64± 0.36kJ/mol63.01288 ±
0.00091
14691-52-2*0
Benzaldehyde c1ccc(cc1)C=O-85.8-86.8± 1.1kJ/mol106.1219 ±
0.0056
100-52-7*500
(Z)-Diazene anion [H]/N=[N-]\[H]280.0273.3± 2.0kJ/mol30.02991 ±
0.00020
*86631-37-0*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+]ccc11159.91149.8± 2.6kJ/mol111.5481 ±
0.0049
127983-85-1*0
p-Chlorophenylium c1(Cl)cc[c+]cc11147.21137.7± 2.5kJ/mol111.5481 ±
0.0049
42766-43-8*0
o-Chlorophenylium c1(Cl)[c+]cccc11166.51157.2± 2.5kJ/mol111.5481 ±
0.0049
137963-70-3*0
Hydroxyoxoammoniumyl O[N+]=O984.1977.7± 1.8kJ/mol47.01293 ±
0.00061
80371-48-8*1
Iodobenzene cation c1ccc(cc1)[I+]1022.691007.25± 0.99kJ/mol204.0078 ±
0.0048
38406-85-8*0
1-Ethenylium-1-yl [C+]=C1507.01507.1± 2.1kJ/mol26.0367 ±
0.0016
80541-07-7*0
Carbon dioxide cation [C+](=O)=O1335.01335.5± 2.4kJ/mol44.00895 ±
0.00100
12181-61-2*1
Nitrobenzene c1ccc(cc1)[N+](=O)[O-]6.4± 1.4kJ/mol123.1094 ±
0.0049
98-95-3*500
Nitromethane C[N+](=O)[O-]-114.17-112.98± 0.43kJ/mol61.0401 ±
0.0010
75-52-5*500
Peroxyhypochlorous acid cation OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*1
Hydrogen fluoride F-321.47± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*832
2,2,4-Trimethylpentane CC(C)CC(C)(C)C-224.5-258.9± 1.5kJ/mol114.2285 ±
0.0065
540-84-1*500
Formyloxidanyl C(=O)[O]-125.91-127.27± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*0
Norbornadiene C1C2C=CC1C=C2208.6± 1.2kJ/mol92.1384 ±
0.0056
121-46-0*500
2,3-Butanedione CC(=O)C(=O)C-365.66± 0.53kJ/mol86.0892 ±
0.0033
431-03-8*500
Succinic acid OC(=O)CCC(=O)O-802.9-825.1± 3.0kJ/mol118.0880 ±
0.0034
110-15-6*0
Dioxiranyl O1[CH]O1217.3213.8± 2.0kJ/mol45.0174 ±
0.0010
120595-16-6*0
NON anion [N]O[N-]495.3492.8± 2.5kJ/mol44.01343 ±
0.00033
*227934-47-6*0
1,2-Diiodoethane C(I)CI87.7973.13± 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
Helium hydride cation [He][H+]1350.1481348.258± 0.000kJ/mol5.009993 ±
0.000070
17009-49-3*0
Xenon hydride cation [Xe+][H]1038.031036.26± 0.89kJ/mol132.2974 ±
0.0200
37276-91-8*0
2-Butanone CCC(=O)C-267.90-273.39± 0.79kJ/mol72.1057 ±
0.0033
78-93-3*500
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
Cyclopropylium C1C[CH+]11104.51093.0± 2.5kJ/mol41.0713 ±
0.0024
1724-43-2*0
Hydrazoic acid cation N=[N+]=[N]1333.661327.99± 0.83kJ/mol43.02761 ±
0.00022
58852-14-5*0
Acrolein C=CC=O-95.8± 1.4kJ/mol56.0633 ±
0.0024
107-02-8*500
Hydrazoic acid anion N=[N]=[N-]309.0302.7± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*1
Ethenedione anion O=C=C=[O-]-148.4-145.8± 2.4kJ/mol56.0207 ±
0.0017
77783-15-4*0
Hydrogen chloride Cl-166.105± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*830
Urea NC(=O)N-317.79-333.38± 0.12kJ/mol60.05534 ±
0.00091
57-13-6*500
Formamide NC=O-251.01± 0.29kJ/mol45.04066 ±
0.00088
75-12-7*500
Peroxyhypochlorous acid anion OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*2
Acetamide CC(=O)N-315.78± 0.56kJ/mol59.0672 ±
0.0017
60-35-5*500
Ethoxyethane CCOCC-265.43-277.74± 0.82kJ/mol74.1216 ±
0.0033
60-29-7*500
Trioxidane OOO-82.01-90.61± 0.63kJ/mol50.01408 ±
0.00091
14699-99-1*0
Acrylonitrile C=CC#N446.3440.9± 1.8kJ/mol53.0627 ±
0.0024
107-13-1*2
Acrylonitrile C=CC#N146.26153.92± 0.78kJ/mol53.0627 ±
0.0024
107-13-1*500
Isocyanoethene C=C[N+]#[C-]544.0539.1± 1.8kJ/mol53.0627 ±
0.0024
14668-82-7*2
Cyclobutane C1CCC13.90± 0.40kJ/mol56.1063 ±
0.0032
287-23-0*590
Bromosyl bromide BrBr[O]179.0163.2± 2.1kJ/mol175.8074 ±
0.0020
68322-97-4*0
1-Isocyanoethylidene C[C][N+]#[C-]527.7523.0± 1.1kJ/mol53.0627 ±
0.0024
*498544-34-6*0
Nitrous acid anion O[N-]=O-105.85-110.48± 0.78kJ/mol47.01403 ±
0.00061
256393-36-9*2
Methylcyclopropane CC1CC11.83± 0.59kJ/mol56.1063 ±
0.0032
594-11-6*590
Carbon monoxide anion [C]#[O-]30.033.7± 2.3kJ/mol28.01065 ±
0.00085
12539-63-8*0
Methylamine CN-45.36± 0.46kJ/mol31.05714 ±
0.00088
74-89-5*500
Trioxirane O1OO1272.7270.1± 1.3kJ/mol47.99820 ±
0.00090
153851-84-4*0
Deuterium hydride [H][2H]0.3280.319± 0.000kJ/mol3.022042 ±
0.000070
13983-20-5*0
1-Methyl-1-ethylium-1-yl C[C+]C1058.11045.6± 1.9kJ/mol42.0792 ±
0.0024
121408-19-3*0
Iodine monochloride ICl-36.511-35.537± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*510
Carbon monoxide [C-]#[O+]465.579469.286± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*1
Chlorodioxidenium ClO[O+]1202.71200.4± 3.4kJ/mol67.4510 ±
0.0011
64710-10-7*0
Oxygen difluoride cation FO[F+]1292.121289.59± 0.66kJ/mol53.99566 ±
0.00030
39432-25-2*0
Azide [N]N=[N-]272.63± 0.48kJ/mol42.02077 ±
0.00021
14343-69-2*800
Propane cation CC[CH3+]974.6954.7± 1.7kJ/mol44.0951 ±
0.0025
34479-70-4*0
Tetraoxygen O=O.O=O104.4102.4± 3.5kJ/mol63.9976 ±
0.0012
12596-83-7*11
Hydrogen peroxide OO-193.171-187.354± 0.079kJ/mol34.01468 ±
0.00062
7722-84-1*500
Cyclobutenylium C1[CH+]C=C11036.91023.8± 3.4kJ/mol53.0820 ±
0.0032
12316-90-4*0
Difluorodioxidanium FO[O+]F1283.61279.1± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*1
Butyraldehyde CCCC=O-235.99-239.51± 0.84kJ/mol72.1057 ±
0.0033
123-72-8*500
Oxadiazirine cation [N+]1=NO11509.91507.2± 2.4kJ/mol44.01233 ±
0.00033
*227934-45-4*0
Oxygen difluoride anion FO[F-]-202.0-201.9± 2.7kJ/mol53.99675 ±
0.00030
*7783-41-7*0
Chlorine hydride oxide [H][Cl](=O)(=O)=O165.1155.3± 2.5kJ/mol84.4588 ±
0.0013
1027055-52-2*0
Silicon carbide [Si][C]735.6740.6± 2.5kJ/mol40.09620 ±
0.00085
409-21-2*0
Silicon carbide [Si][C]-72.3-73.3± 1.5kJ/mol40.09620 ±
0.00085
409-21-2*502
Quartz -906.11-911.09± 0.94kJ/mol60.08430 ±
0.00067
14808-60-7*500
Quartz -825.67-901.59± 0.95kJ/mol60.08430 ±
0.00067
14808-60-7*520
Hydrogen chloride Cl-166.565± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*839
Quartz -903.41-908.27± 0.98kJ/mol60.08430 ±
0.00067
14808-60-7*510
Nitrosyl nitrate O=NO[N+](=O)[O-]60.452.5± 1.9kJ/mol92.0111 ±
0.0012
15969-55-8*2
Methylene [CH2]391.060391.617± 0.097kJ/mol14.02658 ±
0.00081
2465-56-7*0
Tetrabromomethane C(Br)(Br)(Br)Br49.3± 1.4kJ/mol331.6267 ±
0.0041
558-13-4*500
Propionic acid CCC(=O)O-436.41-454.30± 0.60kJ/mol74.0785 ±
0.0025
79-09-4*0
Tetraiodomethane C(I)(I)(I)I392.5± 8.0kJ/mol519.62858 ±
0.00081
507-25-5*500
1-Hydroxyethyl C[CH]O-42.76-56.19± 0.58kJ/mol45.0605 ±
0.0017
2348-46-1*0
Bromomethane CBr-55.99-59.01± 0.27kJ/mol94.9385 ±
0.0013
74-83-9*590
Acetic acid CC(=O)O-484.89± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*833
Tetroxidane OOOO-34.1-44.6± 2.3kJ/mol66.0135 ±
0.0012
29683-94-1*0
Water O-238.932-241.835± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*2
1-Methylethenylium C[C+]=C995.2986.0± 2.0kJ/mol41.0713 ±
0.0024
50457-57-3*0
Tetraoxodinitrate anion O=N(=O)[N-](=O)=O-184.6-187.8± 2.4kJ/mol92.0116 ±
0.0012
63552-02-3*0
Trihydrogen [H]1[H][H]1215.9218.3± 1.1kJ/mol3.02382 ±
0.00021
12184-91-7*100
Acetic acid CC(=O)O-484.94± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*850
Oxygen atom octacation [O+8]197447.75197449.60± 0.12kJ/mol15.99501 ±
0.00030
21450-98-6*0
Dinitrogen dimer N#N.N#N-0.880.84± 0.67kJ/mol56.02696 ±
0.00028
154680-01-0*0
Ammonium hydroxide [NH4+].[OH-]-366.716± 0.062kJ/mol35.04584 ±
0.00047
1336-21-6*1000
Cyclopropane cation C1[CH2+]C11022.31006.8± 1.6kJ/mol42.0792 ±
0.0024
34496-93-0*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]656.6653.2± 1.1kJ/mol39.0559 ±
0.0024
84654-90-0*1
Trioxirane cation O1O[O+]11444.51442.3± 2.2kJ/mol47.99765 ±
0.00090
*153851-84-4*0
mu-Oxodichlorine cation Cl[O+]Cl1130.441126.83± 0.63kJ/mol86.9043 ±
0.0018
51174-96-0*0
Ethyl bromide CCBr-55.56-91.09± 0.26kJ/mol108.9651 ±
0.0019
74-96-4*500
Dihydrogen anion [H][H-]253.8254.7± 1.2kJ/mol2.01643 ±
0.00014
12184-89-3*0
Vinyl iodide C=CI139.5130.7± 1.2kJ/mol153.9497 ±
0.0016
593-66-8*0
Hydrogen peroxide OO-129.479-135.465± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*2
iso-Hexane CCCC(C)C-180.35-204.01± 0.83kJ/mol86.1754 ±
0.0049
107-83-5*500
Chlorine trifluoride cation F[Cl+](F)F1053.41049.1± 2.5kJ/mol92.44736 ±
0.00090
478167-77-0*0
Difluorovinylidene cation [C+]=C(F)F1181.61183.0± 2.3kJ/mol62.0177 ±
0.0016
268566-71-8*0
1-Methylethenyl anion C[C-]=C199.4188.2± 2.0kJ/mol41.0723 ±
0.0024
65887-19-6*0
Methyl acetate CC(=O)OC-394.29-413.16± 0.61kJ/mol74.0785 ±
0.0025
79-20-9*0
Oxygen atom heptacation [O+7]113369.48113371.34± 0.12kJ/mol15.99556 ±
0.00030
14274-89-6*0
2-Oxo-1-ethylium-1-yl [CH+]C=O1292.01288.6± 2.4kJ/mol42.0361 ±
0.0016
214464-96-7*12
Peroxyformate C(=O)O[O-]-320.8-326.7± 1.8kJ/mol61.0174 ±
0.0012
104960-05-6*2
Hypochloroperoxoous acid, hydroxy ester OOOCl49.542.5± 2.5kJ/mol84.4588 ±
0.0013
928652-99-7*2
Oxoethylidene anion [CH-]C=O92.289.0± 2.3kJ/mol42.0372 ±
0.0016
106543-38-8*2
Polyoxymethylene C=O-170.88± 0.21kJ/mol30.02598 ±
0.00087
9002-81-7*500
Peroxyformyl C(=O)O[O]-90.6-96.0± 1.8kJ/mol61.0168 ±
0.0012
56240-83-6*2
1,2-Propadien-1-ylium-1-yl-3-ylidene [C]=C=[C+]1944.71952.6± 1.9kJ/mol36.0316 ±
0.0024
118090-85-0*0
Nitrogen atom [N]470.579472.442± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*1
Chloro(chlorooxy)methylene Cl[C]OCl101.1104.7± 4.8kJ/mol98.9155 ±
0.0020
479587-31-0*12
Oxygen atom trication [O+3]10249.92910252.880± 0.018kJ/mol15.99775 ±
0.00030
14127-64-1*0
Dihydrogen cation [H][H+]1488.3641488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*2
Carbon suboxide O=C=C=C=O-131.7-116.6± 1.3kJ/mol68.0309 ±
0.0025
504-64-3*500
Formaldehyde C=O-171.19± 0.59kJ/mol30.02598 ±
0.00087
50-00-0*800
Trioxygen difluoride FOOOF112.2107.1± 1.1kJ/mol85.99501 ±
0.00090
16829-28-0*0
Isocyanogen cation [C]#[N+]C#N1653.11655.4± 1.6kJ/mol52.0343 ±
0.0016
133415-63-1*0
m-Benzyne c1[c]ccc[c]1614.5605.1± 1.4kJ/mol76.0960 ±
0.0048
1828-89-3*1
Diisocyanogen cation [C]#[N+][N+]#[C-]1838.11842.0± 3.1kJ/mol52.0343 ±
0.0016
*78800-21-2*2
Oxonium [OH3+]605.85599.10± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*2
Iodine monochloride ICl-24.048± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*590
Tropylide [CH-]1C=CC=CC=C1260.9244.6± 2.0kJ/mol91.1310 ±
0.0056
34464-18-1*0
Difluorine cation F[F+]1514.3011514.475± 0.013kJ/mol37.9962578 ±
0.0000010
12184-86-0*0
Dihydrogen [H][H]-0.000-0.058± 0.000kJ/mol2.01588 ±
0.00014
1333-74-0*2
Fluorine atom [F]77.26279.047± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*1
Propylene cation CC=[CH2+]975.18961.65± 0.20kJ/mol42.0792 ±
0.0024
34504-10-4*0
Deuteride [2H-]146.991148.904± 0.0021kJ/mol2.01465035791 ±
0.00000000040
14452-69-8*0
Methyl formate COC=O-346.88-359.92± 0.84kJ/mol60.0520 ±
0.0017
107-31-3*0
Iodine [I]198.109197.709± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*2
Hydrazine monohydrate NN.O-242.66± 0.19kJ/mol50.06052 ±
0.00053
7803-57-8*500
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*11
Acetylene anion C#[CH-]356.8356.7± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*0
Difluorodioxidanium FO[O+]F1287.21283.0± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*2
1-Propenylium CC=[CH+]1233.81223.4± 2.0kJ/mol41.0713 ±
0.0024
50457-58-4*1
Ethyl formate C(=O)OCC-375.2-393.9± 1.2kJ/mol74.0785 ±
0.0025
109-94-4*0
1,3-Butadiyn-4-ylium-1-yl [C]#CC#[C+]2109.92120.5± 2.9kJ/mol48.0423 ±
0.0032
124708-46-9*0
Acetylene C#C599.0598.9± 1.5kJ/mol26.0373 ±
0.0016
74-86-2*11
Trihydrogen cation [H]1[H+][H]11110.3041106.697± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*2
1,3-Butadiynyl anion [C]#CC#[C-]677.7686.8± 1.2kJ/mol48.0433 ±
0.0032
59158-53-1*0
1-Propenylide CC=[CH-]210.5199.4± 2.1kJ/mol41.0723 ±
0.0024
65887-20-9*1
Oxoniumyl ion [H][O+][H]978.467975.563± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*1
Bromodioxy BrO[O]118.2109.1± 4.3kJ/mol111.9028 ±
0.0012
67177-47-3*0
2-Hydroxyethylium [CH2+]CO1024.51011.9± 2.0kJ/mol45.0600 ±
0.0017
38607-31-7*1
Hydroxyoxoammoniumyl O[N+]=O1014.81008.4± 2.0kJ/mol47.01293 ±
0.00061
80371-48-8*2
sec-Butylium CC[CH+]C792.9769.3± 1.7kJ/mol57.1137 ±
0.0033
16548-59-7*0
Hydrogen fluoride F-321.15± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*906
Trioxodinitrate anion O=N-[N](=O)[O-]-87.3-93.1± 2.2kJ/mol76.01223 ±
0.00091
194856-62-7*1
Chlorine atom [Cl]119.621121.228± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*1
Tribromine cation Br[Br+]Br1035.91013.2± 2.6kJ/mol239.7115 ±
0.0030
33105-86-1*0
Hydroxymethylene [CH]O112.67108.91± 0.27kJ/mol30.02598 ±
0.00087
19710-56-6*0
Succinic acid OC(=O)CCC(=O)O-918.55-940.28± 0.13kJ/mol118.0880 ±
0.0034
110-15-6*500
Hydroxylamine NO-33.12-43.49± 0.45kJ/mol33.02996 ±
0.00037
7803-49-8*0
1,2-Dibromoethane C(Br)CBr-80.2± 1.2kJ/mol187.8612 ±
0.0026
106-93-4*500
1,3-Butadien-2-ol C=C(O)C=C-43.2-59.7± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*21
1,3-Butadien-2-ol C=C(O)C=C-53.9-69.1± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*1
Deuterium molecule cation [2H][2H+]1492.2861492.361± 0.000kJ/mol4.02765497609 ±
0.00000000080
12184-84-8*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
Nitrosyl nitrite anion O=NON=[O-]-100.3-103.5± 2.9kJ/mol76.01223 ±
0.00091
*122413-35-8*2
2-Propynal cation C#[C+]C=O1168.31167.2± 1.6kJ/mol54.0468 ±
0.0024
100815-70-1*0
mu-Oxodichlorate anion Cl[O-]Cl-147.8-147.7± 2.5kJ/mol86.9053 ±
0.0018
365546-30-1*0
Acetoxy CC(=O)[O]-182.8-191.6± 1.2kJ/mol59.0440 ±
0.0017
13799-69-4*1
Isocyanogen bromide anion BrN=[C-]105.3102.1± 4.6kJ/mol105.9220 ±
0.0013
*238754-53-5*0
Peroxyhypochlorous acid cation OO[Cl+]1050.81045.1± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*2
Diatomic bromine cation Br[Br+]1060.321045.37± 0.23kJ/mol159.8075 ±
0.0020
12595-71-0*0
Hydrogen peroxide cation O[OH+]930.98924.12± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*22
Nitrous acid anion O[N-]=O-105.5-109.4± 1.8kJ/mol47.01403 ±
0.00061
256393-36-9*1
Bicyclo[1.1.0]buta-1,3-dien-4-ylium-2-yl C12=[C]C2=[C+]12087.42097.2± 2.7kJ/mol48.0423 ±
0.0032
289679-91-0*0
Tribromide Br[Br-]Br-129.23± 0.26kJ/mol239.7125 ±
0.0030
14522-80-6*800
2-Chloro ozone ClO([O])[O]265.9265.3± 3.7kJ/mol83.4509 ±
0.0013
*141801-66-3*0
Cyanoacetylene cation C#CC#[N+]1495.331497.63± 0.64kJ/mol51.0462 ±
0.0024
85398-68-1*0
Isocyanoacetylene cation C#C[N+]#[C]1567.51570.1± 1.3kJ/mol51.0462 ±
0.0024
145076-03-5*0
Hydrazoic acid anion N=[N]=[N-]316.2310.0± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*2
Cyanoethynylium [C+]#CC#N1867.61874.3± 3.2kJ/mol50.0383 ±
0.0024
104233-69-4*0
Water O-286.302-292.742± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*510
Hydrazoic acid N=[N+]=[N-]257.64± 0.48kJ/mol43.02816 ±
0.00022
7782-79-8*1000
Acetoxy CC(=O)[O]-182.8-191.5± 1.2kJ/mol59.0440 ±
0.0017
13799-69-4*0
Hydrazoic acid N=[N+]=[N-]272.63± 0.48kJ/mol43.02816 ±
0.00022
7782-79-8*800
Bicyclo[1.1.0]buta-1,3-dien-2-yl anion C12=[C]C2=[C-]1803.7811.3± 2.1kJ/mol48.0433 ±
0.0032
289679-89-6*0
3-Imino-2-propen-1-ylidene [CH]C=C=N530.6526.3± 1.2kJ/mol53.0627 ±
0.0024
916765-05-4*1
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]600.6596.3± 1.2kJ/mol53.0627 ±
0.0024
123416-74-0*1
Oxygen atom dication [O++]4949.4594953.000± 0.013kJ/mol15.99830 ±
0.00030
14127-63-0*0
Oxygen atom tetracation [O+4]17719.20717721.064± 0.025kJ/mol15.99721 ±
0.00030
14127-65-2*0
Water trimer O.O.O-762.73-776.83± 0.21kJ/mol54.04584 ±
0.00099
31014-12-7*0
Peroxyhypochlorous acid anion OO[Cl-]-2.9-3.3± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*1
Carbon monoxide [C-]#[O+]-113.803-110.523± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*2
Hydrogen iodide I-56.824± 0.090kJ/mol127.912410 ±
0.000076
10034-85-2*800
Dioxaziridine N1OO1277.5270.8± 1.9kJ/mol47.01348 ±
0.00061
67394-35-8*0
Tetraoxygen O=O.O=O69.865.1± 4.4kJ/mol63.9976 ±
0.0012
12596-83-7*21
Hydroxylamine NO-107.51± 0.62kJ/mol33.02996 ±
0.00037
7803-49-8*500
Tetraoxygen O=O.O=O399.0393.2± 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
Dioxofluorine cation [O]F[O+]1667.01664.8± 2.8kJ/mol50.99665 ±
0.00060
223566-05-0*0
Methylaminyliumyl C[N+]1388.31381.9± 2.3kJ/mol29.04071 ±
0.00083
56924-51-7*1
Acetaldehyde CC=O-187.06-191.78± 0.31kJ/mol44.0526 ±
0.0017
75-07-0*500
Ethynylene [C]=[C]820.33826.90± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*2
Oxygen atom pentacation [O+5]28708.78828710.646± 0.053kJ/mol15.99666 ±
0.00030
14127-66-3*0
Formylimidogen C(=O)[N]245.3242.1± 3.3kJ/mol43.02478 ±
0.00086
42288-92-6*2
Disilicon [Si][Si]581.4585.3± 1.6kJ/mol56.17100 ±
0.00060
12597-35-2*0
Cyclopentadiene C1C=CC=C1109.89± 0.57kJ/mol66.1011 ±
0.0040
542-92-7*590
Fluorosyl fluoride FF[O]227.225.± 21.kJ/mol53.99621 ±
0.00030
86825-57-2*2
Trihydrogen [H]1[H][H]1745.878743.094± 0.062kJ/mol3.02382 ±
0.00021
12184-91-7*1
Dioxofluorine anion [O]F[O-]155.9154.3± 2.5kJ/mol50.99775 ±
0.00060
*175861-93-5*0
2-Propen-1-ylium-1-ylidene C=C[C+]1373.11369.5± 2.0kJ/mol39.0554 ±
0.0024
88000-25-3*0
Quartz -320.4-321.7± 2.4kJ/mol60.08430 ±
0.00067
14808-60-7*0
Formylimidogen C(=O)[N]245.2242.1± 4.6kJ/mol43.02478 ±
0.00086
42288-92-6*1
Dinitrogen anion N#[N-]192.5192.5± 1.7kJ/mol28.01403 ±
0.00014
12185-02-3*0
Peroxyformyl C(=O)O[O]-100.58-105.69± 0.92kJ/mol61.0168 ±
0.0012
56240-83-6*0
Methanediol C(O)O-379.41-392.81± 0.92kJ/mol48.0413 ±
0.0010
463-57-0*0
2-Hydroxyethyl [CH2]CO-13.35-26.62± 0.56kJ/mol45.0605 ±
0.0017
4422-54-2*0
Peroxyformate C(=O)O[O-]-341.14-346.59± 0.95kJ/mol61.0174 ±
0.0012
104960-05-6*0
Diiodine cation I[I+]963.523960.408± 0.018kJ/mol253.808391 ±
0.000060
28712-14-3*0
Isocyanomethane C[N+]#[C-]146.1± 2.2kJ/mol41.0520 ±
0.0016
593-75-9*500
Trihydrogen [H]1[H][H]1477.4474.7± 2.3kJ/mol3.02382 ±
0.00021
12184-91-7*201
Cyanogen N#CC#N273.93289.18± 0.42kJ/mol52.0349 ±
0.0016
460-19-5*500
Methane anion [CH4-]27.319.4± 5.1kJ/mol16.04301 ±
0.00085
27680-53-1*0
Fluorosyl fluoride cation FF[O+]1413.01413.4± 3.5kJ/mol53.99566 ±
0.00030
*86825-50-5*0
Cyclopropylidene [C]1CC1474.89466.87± 0.85kJ/mol40.0639 ±
0.0024
2143-70-6*0
Fluoromethane cation C[F+]981.81974.31± 0.62kJ/mol34.03237 ±
0.00083
59122-96-2*0
Isocyanogen anion [C-]#[N]C#N385.5387.6± 3.4kJ/mol52.0354 ±
0.0016
*83951-85-3*0
O--HH Complex [H][H].[O]247.2248.2± 2.0kJ/mol18.01528 ±
0.00033
*7732-18-5*102
Ethynol cation C#[C+]O1063.81061.2± 2.9kJ/mol42.0361 ±
0.0016
84005-02-7*0
Oxonium [OH3+]605.91599.10± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*1
Diazene anion N=[NH-]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
100429-75-2*0
Ethynol anion C#[C-]O163.5165.0± 3.3kJ/mol42.0372 ±
0.0016
864971-50-6*0
Diisocyanogen anion [C-]#[N+][N]#[C-]456.3461.9± 3.7kJ/mol52.0354 ±
0.0016
*78800-22-3*0
Water O-286.303-285.831± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*499
Diisocyanogen cation [C]#[N+][N+]#[C-]1824.81827.9± 3.3kJ/mol52.0343 ±
0.0016
*78800-21-2*0
Diazene N=N207.09199.95± 0.41kJ/mol30.02936 ±
0.00020
3618-05-1*1
Iminomethyl anion [CH-]=N237.3233.6± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*0
Trioxidaniumyl O[O+]O925.5916.6± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*0
Ethynol C#CO95.2992.81± 0.80kJ/mol42.0367 ±
0.0016
32038-79-2*0
Peroxychlorous acid O=ClOO96.290.6± 2.1kJ/mol84.4588 ±
0.0013
177778-92-6*0
2-Cyclopropyn-1-ylidene C1=C=C=1898.9905.8± 1.6kJ/mol36.0321 ±
0.0024
102508-15-6*0
Diazoethenylidene cation [N]=[N]=C=[C+]1771.21773.2± 3.5kJ/mol52.0343 ±
0.0016
*130760-10-0*0
Cyclopentadienide [CH-]1C=CC=C1100.187.1± 1.1kJ/mol65.0937 ±
0.0040
12127-83-2*0
Diazoethenylidene anion [N]=[N]=C=[C-]529.7532.3± 3.5kJ/mol52.0354 ±
0.0016
*130760-11-1*0
Cyanomethylium [CH2+]C#N1256.771254.13± 0.74kJ/mol40.0435 ±
0.0016
34430-18-7*0
3H-diazirin-3-ylidene-methylene [C]=C1N=N1837.3839.9± 2.3kJ/mol52.0349 ±
0.0016
204253-88-3*0
1-Methoxyethenol C=C(O)OC-284.9-303.4± 1.7kJ/mol74.0785 ±
0.0025
4453-91-2*0
trans-Cycloheptene C1CCC=CCC1141.6103.5± 1.9kJ/mol96.1702 ±
0.0057
45509-99-7*0
Propylidene anion CC[CH-]300.8286.6± 3.2kJ/mol42.0803 ±
0.0024
*121408-55-7*0
Hydrazine anion N[NH2-]232.2217.8± 4.1kJ/mol32.04579 ±
0.00031
65391-88-0*0
Oxiranylium C1[CH+]O1901.1893.2± 1.5kJ/mol43.0441 ±
0.0016
57789-76-1*0
Diazene anion N=[NH-]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
100429-75-2*1
Isocyanogen chloride cation ClN=[C+]1480.81482.1± 3.9kJ/mol61.4696 ±
0.0012
956475-91-5*0
Ethynol C#CO406.4403.2± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*12
Oxiranyl anion C1[CH-]O1121.2113.3± 1.5kJ/mol43.0452 ±
0.0016
72722-59-9*0
Difluorodioxidane anion FO[O-]F-251.-251.± 28.kJ/mol69.99615 ±
0.00060
*7783-45-1*0
Ethynol C#CO409.4406.3± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*13
Nitrogen atom [N]700.555702.458± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*2
Water O-286.303-292.744± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*509
Formic acid cation [CH+](=O)O721.87715.34± 0.26kJ/mol46.0248 ±
0.0010
50614-05-6*0
Phenol cation c1ccc(cc1)[OH+]746.05727.25± 0.64kJ/mol94.1107 ±
0.0048
40932-22-7*0
Phenol anion c1ccc(cc1)[OH-]22.77.7± 4.9kJ/mol94.1118 ±
0.0048
38752-11-3*0
Ethynol C#CO455.5452.2± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*14
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
Fluoromethane CF-245.75± 0.45kJ/mol34.03292 ±
0.00083
593-53-3*590
Cyanic fluoride cation F[C+]#N1294.41294.9± 1.1kJ/mol45.01529 ±
0.00080
62532-69-8*0
Nitrato O=[N+](O)O1290.611285.90± 0.86kJ/mol62.00439 ±
0.00090
133057-96-2*0
Benzaldehyde cation c1ccc(cc1)C=[O+]896.8880.1± 1.9kJ/mol106.1214 ±
0.0056
80226-59-1*0
Benzaldehyde anion c1ccc(cc1)C=[O-]-60.2-77.8± 1.2kJ/mol106.1225 ±
0.0056
34473-57-9*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]656.6653.2± 1.1kJ/mol39.0559 ±
0.0024
84654-90-0*0
2-Propenylidene [CH]C=C417.4410.5± 1.5kJ/mol40.0639 ±
0.0024
19527-08-3*1
Ethynol C#CO464.1460.9± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*15
C=O-C cation [C]=[O+][C]1585.81592.9± 2.7kJ/mol40.0203 ±
0.0016
83483-98-1*0
Hydrogen peroxide OO-190.76± 0.30kJ/mol34.01468 ±
0.00062
7722-84-1*800
Bromine atom [Br]162.001155.939± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*2
Nitrosyl nitrate O=NO[N+](=O)[O-]48.340.4± 1.8kJ/mol92.0111 ±
0.0012
15969-55-8*0
Tetraoxidanyl OOO[O]2.00.2± 3.0kJ/mol65.0055 ±
0.0012
69696-93-1*0
2-Propenylidene [CH]C=C417.4410.5± 1.5kJ/mol40.0639 ±
0.0024
19527-08-3*0
Chloromethane CCl-106.11-102.15± 0.25kJ/mol50.4872 ±
0.0012
74-87-3*590
Hydroperoxonium [OH2+]O738.1727.8± 1.2kJ/mol35.02207 ±
0.00064
70850-26-9*0
Cyanic fluoride anion FC#[N-]-20.4-18.4± 2.9kJ/mol45.01639 ±
0.00080
34507-50-1*0
Methyl bromide cation C[Br+]996.84981.93± 0.27kJ/mol94.9380 ±
0.0013
12538-70-4*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]656.6653.1± 2.0kJ/mol39.0559 ±
0.0024
84654-90-0*12
Oxoniumyl ion [H][O+][H]978.716975.565± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*2
Trihydrogen cation [H]1[H+][H]11110.5771106.695± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*1
Hydroperoxonium [OH2+]O762.5752.7± 2.0kJ/mol35.02207 ±
0.00064
70850-26-9*2
Water anion [H][O-][H]-50.1-53.0± 4.3kJ/mol18.01583 ±
0.00033
12259-30-2*0
Aminomethylidyne anion [C-]N481.6478.0± 3.2kJ/mol28.03387 ±
0.00082
96808-04-7*1
Dioxohydrazine O=NN=O192.2188.7± 1.8kJ/mol60.01228 ±
0.00062
16824-89-8*1
1-Propen-1-yl-3-ylidene [CH]C=[CH]665.7662.2± 2.0kJ/mol39.0559 ±
0.0024
84654-90-0*13
Hydrogen peroxide cation O[OH+]897.25890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*12
Nitrogen sesquioxide cation O=N-[N+](=O)[O]1027.61023.7± 4.8kJ/mol76.01113 ±
0.00091
*10544-73-7*0
Hydrogen isocyanide anion [C-]=N191.50191.68± 0.33kJ/mol27.02593 ±
0.00081
96913-22-3*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]699.2696.3± 3.4kJ/mol39.0559 ±
0.0024
84654-90-0*2
Ethylidene [CH]C361.20354.22± 0.51kJ/mol28.0532 ±
0.0016
4218-50-2*0
Hydroxyformyl O[C]=O-181.13-183.67± 0.44kJ/mol45.0174 ±
0.0010
2564-86-5*0
Iodine monochloride ICl-36.511-35.537± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*500
Acetone enol C=C(O)C-152.0-168.9± 1.1kJ/mol58.0791 ±
0.0025
29456-04-0*0
Diazenide N#N.[H-]175.6176.7± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*0
Peroxyhypochlorous acid cation OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*0
Dinitrogen tetraoxide O=N(=O)N(=O)=O-37.86-27.01± 0.19kJ/mol92.0111 ±
0.0012
10544-72-6*500
Hydroxyformyl anion [C-](=O)O-319.52-321.38± 0.58kJ/mol45.0180 ±
0.0010
78944-70-4*0
Methyl iodide cation C[I+]944.80935.40± 0.18kJ/mol141.93844 ±
0.00083
12538-72-6*0
Isocyanogen chloride anion ClN=[C-]102.8107.2± 3.9kJ/mol61.4707 ±
0.0012
923019-39-0*0
Fluorine atom [F]82.09683.881± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*2
2-Hydroxyethenyl [CH]=CO138.01132.19± 0.92kJ/mol43.0446 ±
0.0016
108665-16-3*0
Nitrosodioxaziridine O=NN1OO1415.3409.5± 2.8kJ/mol76.01168 ±
0.00091
132871-99-9*3
Methyl nitrite CON=O-52.56-64.52± 0.90kJ/mol61.0401 ±
0.0010
624-91-9*1
Methyl nitrite CON=O-88.91± 0.56kJ/mol61.0401 ±
0.0010
624-91-9*500
1,2-Dibromoethene C(Br)=CBr121.1100.9± 2.1kJ/mol185.8453 ±
0.0026
540-49-8*0
Fluoroform C(F)(F)F-704.45± 0.43kJ/mol70.01385 ±
0.00080
75-46-7*590
Chlorine atom [Cl]130.176131.783± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*2
Vinyl alcohol cation C=C[OH+]778.7767.7± 1.3kJ/mol44.0520 ±
0.0017
57239-63-1*0
Trihydrogen [H]1[H][H]1745.878743.199± 0.062kJ/mol3.02382 ±
0.00021
12184-91-7*0
2,2,4-Trimethylpentane CC(C)CC(C)(C)C-171.3-223.7± 1.5kJ/mol114.2285 ±
0.0065
540-84-1*0
Dioxoethylium C(=O)[C+]=O688.1689.4± 3.1kJ/mol57.0276 ±
0.0017
*1994332-01-2*0
Dichlorovinylidene [C]=C(Cl)Cl421.6424.9± 3.0kJ/mol94.9268 ±
0.0024
20394-25-6*0
Dioxohydrazine O=NN=O172.89171.13± 0.14kJ/mol60.01228 ±
0.00062
16824-89-8*0
Hydroperoxyimidogen OO[N]111.8108.9± 2.8kJ/mol47.01348 ±
0.00061
877456-58-1*2
Chlorovinylidene [C]=CCl428.0429.7± 3.0kJ/mol60.4820 ±
0.0018
70277-82-6*0
Carbonylmethyloxonium CO[C+]=O561.4553.2± 3.2kJ/mol59.0435 ±
0.0017
24434-00-2*0
Carbon atom [C]2.3911.863± 0.044kJ/mol12.01070 ±
0.00080
7440-44-0*501
Perchloric acid cation O[Cl+](=O)(=O)=O1191.81182.2± 3.5kJ/mol100.4577 ±
0.0015
91712-47-9*0
Trioxodinitrate anion O=N-[N](=O)[O-]-104.3-107.5± 1.9kJ/mol76.01223 ±
0.00091
194856-62-7*0
Hydroxymethylene cation [CH+]O971.9968.3± 1.4kJ/mol30.02543 ±
0.00087
135395-06-1*0
1,2-Difluoroethene C(F)=CF-302.90-308.99± 0.90kJ/mol64.0341 ±
0.0016
1691-13-0*0
Water O-238.647-241.835± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*1
1,1-Dibromoethane CC(Br)Br-67.2± 1.3kJ/mol187.8612 ±
0.0026
557-91-5*500
Dichloromethylene [C](Cl)Cl229.51230.69± 0.64kJ/mol82.9161 ±
0.0020
1605-72-7*0
Nitrosodioxaziridine O=NN1OO1413.6408.2± 1.8kJ/mol76.01168 ±
0.00091
132871-99-9*0
Methoxyoxomethyl CO[C]=O-152.5-160.2± 1.5kJ/mol59.0440 ±
0.0017
16481-04-2*0
Oxiranylidene C1[C]O1213.5209.2± 1.4kJ/mol42.0367 ±
0.0016
50983-85-2*0
Ethenol C=CO-113.12-123.51± 0.52kJ/mol44.0526 ±
0.0017
557-75-5*0
Ethanedial anion C(=O)[C-]=O-189.2-190.8± 3.3kJ/mol57.0287 ±
0.0017
1994332-01-2*0
Imidogen [NH]358.74358.78± 0.16kJ/mol15.014680 ±
0.000099
13774-92-0*1
Difluorovinylidene anion [C-]=C(F)F-88.2-87.1± 2.3kJ/mol62.0188 ±
0.0016
107693-92-5*0
Carbon atom [C]1114.9601120.106± 0.047kJ/mol12.01070 ±
0.00080
7440-44-0*3
Dibromovinylidene [C]=C(Br)Br510.9499.8± 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
Isocyanic fluoride anion FN=[C-]74.375.9± 5.7kJ/mol45.01639 ±
0.00080
357426-78-9*0
Krypton dication [Kr++]3701.1243701.124± 0.013kJ/mol83.7989 ±
0.1000
18469-91-5*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
Xenon dication [Xe++]3194.143194.14± 0.36kJ/mol131.2889 ±
0.0200
14066-95-6*0
Methoxyoxomethyl CO[C]=O-151.8-160.8± 2.2kJ/mol59.0440 ±
0.0017
16481-04-2*2
Diazanide N[NH-]249.3239.2± 3.1kJ/mol31.03785 ±
0.00025
25415-88-7*0
Cyanogen bromide cation Br[C+]#N1331.61325.2± 1.1kJ/mol105.9209 ±
0.0013
34749-77-4*0
3-Buten-2-one CC(=O)C=C-95.57-111.11± 0.87kJ/mol70.0898 ±
0.0032
78-94-4*0
Dioxymethylene [CH]O[O]341.8339.8± 3.0kJ/mol45.0174 ±
0.0010
438586-67-5*0
3-Buten-2-one CC(=O)C=C-94.0-110.0± 1.6kJ/mol70.0898 ±
0.0032
78-94-4*2
Dicarbon monoxide [C]=C=O377.12381.16± 0.83kJ/mol40.0208 ±
0.0016
12071-23-7*0
1,3-Butadien-2-ol C=C(O)C=C-48.5-64.8± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*12
Hydroxyoxoethenylium O[C+]=C=O866.2864.9± 3.5kJ/mol57.0276 ±
0.0017
*1994332-00-1*0
1,3-Butadien-2-ol C=C(O)C=C-38.4-54.7± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*22
Ethynediolide O[C-]=C=O-133.2-134.3± 3.5kJ/mol57.0287 ±
0.0017
1994332-00-1*0
1,3-Butadien-2-ol C=C(O)C=C-43.2-59.2± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*2
1,3-Butadien-2-ol C=C(O)C=C-53.9-68.8± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*0
Cyanogen chloride cation Cl[C+]#N1326.051327.38± 0.97kJ/mol61.4696 ±
0.0012
37612-72-9*0
Methoxyoxomethyl CO[C]=O-151.6-159.7± 2.2kJ/mol59.0440 ±
0.0017
16481-04-2*3
2-Hydroxyethylium [CH2+]CO1019.11007.0± 1.5kJ/mol45.0600 ±
0.0017
38607-31-7*0
Bromovinylidene [C]=CBr466.6460.5± 3.8kJ/mol104.9333 ±
0.0019
161957-27-3*0
Water dimer cation O.[OH2+]556.8546.4± 3.0kJ/mol36.03001 ±
0.00066
158061-35-9*0
Hydroxymethylene anion [CH-]O147.1144.2± 1.6kJ/mol30.02653 ±
0.00087
207914-87-2*0
Trioxygen difluoride FOOOF113.4107.6± 2.1kJ/mol85.99501 ±
0.00090
16829-28-0*2
1,2-Propadien-1-one anion C=C=C=[O-]49.548.3± 3.1kJ/mol54.0479 ±
0.0024
159171-62-7*0
Difluorophosgene anion C(F)(F)=[O-]-602.3-604.2± 3.3kJ/mol66.00745 ±
0.00085
474815-26-4*0
1,2-Dichloroethene C(Cl)=CCl3.47-1.85± 0.54kJ/mol96.9427 ±
0.0024
540-59-0*0
Isocyanogen bromide cation BrN=[C+]1470.21464.5± 5.9kJ/mol105.9209 ±
0.0013
238754-53-5*0
2-Cyclopropen-1-one cation O=[C+]1C=C11078.61075.5± 2.0kJ/mol54.0468 ±
0.0024
100815-68-7*0
Hypochloroperoxoous acid, hydroxy ester OOOCl49.142.3± 1.9kJ/mol84.4588 ±
0.0013
928652-99-7*0
Oxirene C1=CO1273.18271.02± 0.92kJ/mol42.0367 ±
0.0016
157-18-6*0
Cyclopropane C1CC141.4135.72± 0.53kJ/mol42.0797 ±
0.0024
75-19-4*500
Cyanogen chloride anion ClC#[N-]46.751.0± 3.1kJ/mol61.4707 ±
0.0012
12281-43-5*0
Fluoro(fluorooxy)methylene F[C]OF-134.8-136.0± 1.3kJ/mol66.00691 ±
0.00085
479587-30-9*0
Isourea NC(=N)O-156.2-172.8± 2.6kJ/mol60.05534 ±
0.00091
4744-36-9*0
Bromoform C(Br)(Br)Br3.5± 1.3kJ/mol252.7306 ±
0.0031
75-25-2*590
mu-Oxodioxodinitrogen O=NO[N+]=O984.0981.0± 3.2kJ/mol76.01113 ±
0.00091
87950-63-8*1
Carbamoyl anion [NH2-]=C=O-81.7-87.6± 3.1kJ/mol44.03327 ±
0.00087
78944-69-1*0
Fluorosyl fluoride FF[O]192.6193.1± 2.3kJ/mol53.99621 ±
0.00030
86825-57-2*0
Fluorosyl fluoride anion FF[O-]-147.2-146.9± 3.0kJ/mol53.99675 ±
0.00030
*86825-57-2*0
Acetyloxoniumylidene CC(=O)[O+]891.7883.2± 3.0kJ/mol59.0435 ±
0.0017
67057-47-0*1
Chloromethylene [CH]Cl320.27320.55± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*0
Nitrosyl nitrite anion O=NON=[O-]-103.1-106.2± 2.8kJ/mol76.01223 ±
0.00091
*122413-35-8*0
Peroxychlorous acid O=ClOO102.396.2± 3.7kJ/mol84.4588 ±
0.0013
177778-92-6*3
Formaldoxime C=NO30.720.1± 1.4kJ/mol45.04066 ±
0.00088
75-17-2*0
Difluoromethane C(F)F-468.73± 0.36kJ/mol52.02339 ±
0.00081
75-10-5*590
Methoxyethene C=COCC-89.2-106.5± 1.1kJ/mol58.0791 ±
0.0025
107-25-5*0
Isocyanic fluoride cation FN=[C+]1618.41619.0± 4.0kJ/mol45.01529 ±
0.00080
*16992-26-0*0
Hydrogen peroxide cation O[OH+]931.01924.12± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*21
Phosgene cation C(=[O+])(Cl)Cl897.1896.0± 1.7kJ/mol98.9150 ±
0.0020
73249-38-4*0
Methoxyethene C=COCC-81.8-98.9± 2.4kJ/mol58.0791 ±
0.0025
107-25-5*1
Phosgene C(=O)(Cl)Cl-242.74± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*501
Phosgene C(=O)(Cl)Cl-255.44-242.74± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*502
Hydrazoic acid anion N=[N]=[N-]309.0303.2± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*0
Hydrazoic acid N=[N+]=[N-]261.49± 0.65kJ/mol43.02816 ±
0.00022
7782-79-8*500
Methylaminyliumyl C[N+]1423.01416.1± 2.3kJ/mol29.04071 ±
0.00083
56924-51-7*2
Diazene cation N=[NH+]1132.461125.80± 0.64kJ/mol30.02881 ±
0.00020
76986-17-9*0
Chloro(chlorooxy)methylene Cl[C]OCl73.573.9± 3.6kJ/mol98.9155 ±
0.0020
479587-31-0*0
Oxide [O--]651.653.± 15.kJ/mol16.00050 ±
0.00030
16833-27-5*0
Hydrogen peroxide OO-129.459-135.465± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*1
Chlorous acid cation O[Cl+]=O996.6991.5± 3.1kJ/mol68.4589 ±
0.0011
*99559-66-7*0
Oxonium [OH3+]-285.830± 0.026kJ/mol19.02267 ±
0.00037
13968-08-6*800
Chloro(chlorooxy)methylene Cl[C]OCl98.105.± 15.kJ/mol98.9155 ±
0.0020
479587-31-0*1
Chlorine chlorite ClO[Cl]=O168.6166.4± 1.3kJ/mol102.9042 ±
0.0019
105206-44-8*0
Diazene cation N=[NH+]1132.461125.52± 0.64kJ/mol30.02881 ±
0.00020
76986-17-9*1
Chlorohydroxymethyl [CH](Cl)O-54.8-60.5± 1.1kJ/mol65.4787 ±
0.0012
147139-06-8*0
1-Cyanoethylidene C[C]C#N437.5433.7± 1.5kJ/mol53.0627 ±
0.0024
498544-34-6*0
Hydrobromate ion [BrH-]-5.6-12.1± 4.3kJ/mol80.9125 ±
0.0010
85532-97-4*0
Oxoiodonium I[O+]1066.11064.1± 1.9kJ/mol142.90332 ±
0.00030
81182-81-2*0
O--HH Complex [H][H].[O]247.6248.9± 2.7kJ/mol18.01528 ±
0.00033
*7732-18-5*101
Ethoxyethene C=COCC-117.7-136.2± 1.5kJ/mol72.1057 ±
0.0033
109-92-2*0
Chloroethane CCCl-134.29-135.91± 0.27kJ/mol64.5138 ±
0.0019
75-00-3*500
Ethoxyethene C=COCC-111.2-135.1± 2.3kJ/mol72.1057 ±
0.0033
109-92-2*21
Ethoxyethene C=COCC-110.7-132.9± 2.6kJ/mol72.1057 ±
0.0033
109-92-2*1
3-Imino-2-propen-1-ylidene [CH]C=C=N530.6526.3± 1.2kJ/mol53.0627 ±
0.0024
916765-05-4*0
Oxoethylidene [CH]C=O261.1258.3± 1.1kJ/mol42.0367 ±
0.0016
39920-84-8*0
3-Imino-2-propen-1-ylidene [CH]C=C=N571.8567.0± 1.6kJ/mol53.0627 ±
0.0024
916765-05-4*2
Nitrous acid anion O[N-]=O-105.85-109.32± 0.78kJ/mol47.01403 ±
0.00061
256393-36-9*0
Ethoxyethene C=COCC-108.7-131.9± 2.3kJ/mol72.1057 ±
0.0033
109-92-2*11
Propylidyne CC[C]492.4482.7± 1.2kJ/mol41.0718 ±
0.0024
85056-54-8*0
Peroxyhypochlorous acid anion OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*0
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]600.6596.3± 1.2kJ/mol53.0627 ±
0.0024
123416-74-0*0
Chlorohydroxymethylene Cl[C]OH14.311.4± 3.2kJ/mol64.4707 ±
0.0012
147723-60-2*2
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]634.4630.4± 1.6kJ/mol53.0627 ±
0.0024
123416-74-0*2
COC vdW [C]=O.[C]589.7598.5± 1.5kJ/mol40.0208 ±
0.0016
*12071-24-8*0
Chlorohydroxymethylene Cl[C]OH13.911.2± 2.6kJ/mol64.4707 ±
0.0012
147723-60-2*0
Cyanogen iodide cation I[C+]#N1271.41271.2± 1.6kJ/mol152.92136 ±
0.00080
34749-78-5*0
2-Oxo-1-ethylium-1-yl [CH+]C=O1289.41286.7± 2.5kJ/mol42.0361 ±
0.0016
214464-96-7*1
Hydroxyamidogen [NH]O101.3694.53± 0.81kJ/mol32.02202 ±
0.00034
13940-32-4*0
Hydrogen cyanide anion [CH-]#N129.509129.030± 0.090kJ/mol27.02593 ±
0.00081
12334-27-9*0
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*0
(Chlorooxy)methylene H[C]OCl155.4155.2± 3.7kJ/mol64.4707 ±
0.0012
331419-80-8*1
(Chlorooxy)methylene H[C]OCl119.1117.8± 2.7kJ/mol64.4707 ±
0.0012
331419-80-8*0
Chlorous acid anion O[Cl-]=O-154.3-156.2± 3.3kJ/mol68.4600 ±
0.0011
99559-66-7*0
(Methylamino)methyl anion CN[CH2-]201.1184.1± 3.2kJ/mol44.0763 ±
0.0017
*31277-25-5*0
Dichlorine cation Cl[Cl+]1108.3071108.286± 0.0062kJ/mol70.9049 ±
0.0018
12595-90-3*0
Dioxyamidogen [NH-][O+]=O251.1244.5± 2.5kJ/mol47.01348 ±
0.00061
71843-95-3*1
2-Cyanovinyl [CH]=CC#N447.9445.5± 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#N263.7261.4± 1.8kJ/mol52.0553 ±
0.0024
*85398-67-0*0
Isocyanic acid anion [NH-]=C=O-54.3-57.4± 3.0kJ/mol43.02533 ±
0.00086
*444010-28-0*0
1,2-Butadiene CC=C=C137.58138.64± 0.66kJ/mol54.0904 ±
0.0032
590-19-2*500
2-Isocyanovinyl [CH]=C[N+]#[C-]543.1541.7± 1.7kJ/mol52.0547 ±
0.0024
225798-14-1*0
(Formyloxy)methyl O=CO[CH2]-151.9-160.0± 1.3kJ/mol59.0440 ±
0.0017
3122-12-1*0
Hydroxyaminylium [NH+]O1019.51012.4± 2.5kJ/mol32.02147 ±
0.00034
66097-71-0*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
Carboxymethyl [CH2]C(=O)O-227.4-237.3± 1.2kJ/mol59.0440 ±
0.0017
2887-46-9*0
Chloroformyl anion Cl[C-]=O-356.5-352.9± 3.3kJ/mol63.4633 ±
0.0012
41976-93-6*0
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
Isoformyl anion [C][O].[H-]55.758.4± 1.8kJ/mol29.01859 ±
0.00086
81747-63-9*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=O224.0229.8± 3.6kJ/mol52.0320 ±
0.0024
109292-50-4*0
Propynylidene [CH]=C=[CH]597.6599.4± 1.3kJ/mol38.0480 ±
0.0024
67152-18-5*2
Oxoethylidene anion [CH-]C=O86.984.2± 2.1kJ/mol42.0372 ±
0.0016
106543-38-8*0
Ethane anion C[CH3-]41.826.5± 4.4kJ/mol30.0696 ±
0.0017
54064-82-3*0
2-Propenylidene [CH]C=C419.0411.4± 2.3kJ/mol40.0639 ±
0.0024
19527-08-3*12
Propargylenide C#C[CH-]434.4437.6± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*0
Cyanic acid cation [OH+]C#N1135.81133.2± 2.9kJ/mol43.02423 ±
0.00086
59780-31-3*0
Cyanic acid anion [OH-]C#N-9.2-9.5± 3.1kJ/mol43.02533 ±
0.00086
58199-47-6*0
Trihydrogen [H]1[H][H]1254.5250.7± 1.2kJ/mol3.02382 ±
0.00021
12184-91-7*200
Ethylene anion C=[CH2-]232.0225.6± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*0
Cyclobutenyl anion C1[CH-]C=C1318.3305.9± 3.7kJ/mol53.0830 ±
0.0032
60211-42-9*0
Hydrodioxonitrogen cation [NH+](=O)[O]1130.21123.6± 3.0kJ/mol47.01293 ±
0.00061
252986-76-8*0
Methylaminyliumyl C[N+]1388.31381.9± 2.3kJ/mol29.04071 ±
0.00083
56924-51-7*0
2-Methoxy-2-oxoethyl [CH2]C(=O)OC-203.4-218.7± 1.6kJ/mol73.0706 ±
0.0025
54668-31-4*0
Peroxyformic acid C(=O)OO-279.38-288.52± 0.88kJ/mol62.0248 ±
0.0012
107-32-4*0
Phenylperoxy cation c1ccc(cc1)O[O+]1018.01001.0± 3.1kJ/mol109.1022 ±
0.0049
956036-17-2*0
Phenylperoxy anion c1ccc(cc1)O[O-]-39.8-56.8± 3.3kJ/mol109.1032 ±
0.0049
*956036-17-2*0
Oxirene C1=CO1387.8384.5± 1.4kJ/mol42.0367 ±
0.0016
157-18-6*1
Hydrodioxonitrate [NH](=O)[O-]-61.8-68.2± 3.2kJ/mol47.01403 ±
0.00061
61508-71-2*0
2-Iodoethanol ICCO-132.0-150.2± 2.5kJ/mol171.9650 ±
0.0017
624-76-0*0
Pentachloroethylium C(Cl)(Cl)(Cl)[C+](Cl)Cl836.2834.5± 3.3kJ/mol201.2844 ±
0.0048
*7094-17-9*0
Nitrosodioxaziridine O=NN1OO1413.9408.1± 3.2kJ/mol76.01168 ±
0.00091
132871-99-9*2
Fulvene cation [CH2+]=C1C=CC=C11042.91027.2± 2.8kJ/mol78.1113 ±
0.0048
34504-75-1*0
Fulvene anion [CH2-]=C1C=CC=C1190.7175.7± 4.1kJ/mol78.1124 ±
0.0048
34504-63-7*0
Dioxodiazoxane O=NON=O93.088.1± 1.3kJ/mol76.01168 ±
0.00091
122413-35-8*0
Isofulminic acid cation [OH+][N+]#[C-]1377.01374.9± 2.9kJ/mol43.02423 ±
0.00086
117800-60-9*0
Chlorine pentafluoride anion F[Cl-](F)(F)(F)F-619.3-622.7± 4.4kJ/mol130.44526 ±
0.00090
184851-42-1*0
Diazene N=N207.09199.95± 0.41kJ/mol30.02936 ±
0.00020
3618-05-1*0
Silicon cation [Si+]1232.751236.88± 0.20kJ/mol28.08495 ±
0.00030
14067-07-3*0
Silicon anion [Si-]312.17315.15± 0.20kJ/mol28.08605 ±
0.00030
14337-02-1*0
Difluorodioxidanium FO[O+]F1283.61280.0± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*0
Pentachloroethanide C(Cl)(Cl)(Cl)[C-](Cl)Cl-283.7-282.2± 3.9kJ/mol201.2854 ±
0.0048
263019-83-6*0
Iminomethyl [CH]=N275.79272.18± 0.61kJ/mol28.03332 ±
0.00082
15691-95-9*0
Tetraoxidanyl OOO[O]76.769.5± 6.1kJ/mol65.0055 ±
0.0012
69696-93-1*1
Imidogen [NH]509.33509.38± 0.18kJ/mol15.014680 ±
0.000099
13774-92-0*2
Silicon carbide [Si][C]-71.0-72.1± 1.4kJ/mol40.09620 ±
0.00085
409-21-2*500
(Dimethylamino)methyl anion CN(C)[CH2-]189.9165.7± 3.3kJ/mol58.1029 ±
0.0025
125231-49-4*0
Chlorine trifluoride anion F[Cl-](F)F-480.4-481.9± 3.6kJ/mol92.44846 ±
0.00090
184289-50-7*0
(Acetyloxy)methyl CC(=O)O[CH2]-200.7-214.5± 1.6kJ/mol73.0706 ±
0.0025
2887-49-2*0
Quartz -906.11-911.09± 0.94kJ/mol60.08430 ±
0.00067
14808-60-7*501
Chlorine pentafluoride cation F[Cl+](F)(F)(F)F1005.8996.8± 3.3kJ/mol130.44417 ±
0.00090
478167-78-1*0
Quartz -900.8-905.6± 1.6kJ/mol60.08430 ±
0.00067
14808-60-7*515
1-Methylethylidene C[C]C315.92303.02± 0.99kJ/mol42.0797 ±
0.0024
40852-89-9*0
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. 1.122q of the Thermochemical Network, Argonne National Laboratory, Lemont, Illinois 2021 [DOI: 10.17038/1821118]; available at ATcT.anl.gov
4   D. Feller, D. H. Bross, and B. Ruscic,
Enthalpy of Formation of N2H4 (Hydrazine) Revisited.
J. Phys. Chem. A 121, 6187-6198 (2017) [DOI: 10.1021/acs.jpca.7b06017]
5   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]
6   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]
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.