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

Below is a list of 0 K and 298.15 K enthalpies of formation for all 1722 species included in version 1.122o.
This version of ATcT results was generated from an expansion of version 1.122h [4] to include the ionization energy of H2O2. [5].

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
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]470.579472.441± 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
Chlorine atom [Cl]119.621121.302± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*0
Methane C-66.561-74.530± 0.055kJ/mol16.04246 ±
0.00085
74-82-8*0
Fluorine atom [F]77.25879.364± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*0
Ethane CC-68.36-83.98± 0.13kJ/mol30.0690 ±
0.0017
74-84-0*0
Water O-286.302-285.830± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*500
Water O-238.932-241.836± 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=C60.8752.35± 0.12kJ/mol28.0532 ±
0.0016
74-85-1*0
Bromine atom [Br]117.914111.852± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*0
Methanol CO-190.04-200.92± 0.15kJ/mol32.04186 ±
0.00090
67-56-1*0
Methyl [CH3]149.867146.453± 0.059kJ/mol15.03452 ±
0.00083
2229-07-4*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
Hydroxyl [OH]37.24837.488± 0.026kJ/mol17.00734 ±
0.00031
3352-57-6*0
Formaldehyde C=O-105.376-109.215± 0.097kJ/mol30.02598 ±
0.00087
50-00-0*0
Propane CCC-82.76-105.04± 0.18kJ/mol44.0956 ±
0.0025
74-98-6*0
Hydrogen fluoride F-272.674-272.721± 0.049kJ/mol20.006343 ±
0.000070
7664-39-3*0
Ethanol CCO-217.31-235.03± 0.22kJ/mol46.0684 ±
0.0017
64-17-5*0
Hydrogen bromide Br-27.94-35.79± 0.14kJ/mol80.9119 ±
0.0010
10035-10-6*0
Iodine [I]107.157106.757± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*0
Acetylene C#C228.82228.26± 0.13kJ/mol26.0373 ±
0.0016
74-86-2*0
Ethyl C[CH2]131.04119.98± 0.27kJ/mol29.0611 ±
0.0016
2025-56-1*0
Hydrogen cyanide C#N129.663129.278± 0.090kJ/mol27.02538 ±
0.00081
74-90-8*0
Nitric oxide [N]=O90.61791.121± 0.065kJ/mol30.00614 ±
0.00031
10102-43-9*0
Chloromethane CCl-74.63-82.56± 0.19kJ/mol50.4872 ±
0.0012
74-87-3*0
Ammonia N-38.564-45.557± 0.030kJ/mol17.03056 ±
0.00022
7664-41-7*0
Propene CC=C34.9219.92± 0.21kJ/mol42.0797 ±
0.0024
115-07-1*0
Nitrogen dioxide O=[N]=O36.85634.049± 0.065kJ/mol46.00554 ±
0.00060
10102-44-0*0
Hydrogen iodide I28.64526.470± 0.036kJ/mol127.912410 ±
0.000076
10034-85-2*0
Hydroxyde [OH-]-139.093-139.060± 0.026kJ/mol17.00789 ±
0.00031
14280-30-9*0
Benzene c1ccccc1100.6183.10± 0.23kJ/mol78.1118 ±
0.0048
71-43-2*0
Acetaldehyde CC=O-155.12-165.60± 0.26kJ/mol44.0526 ±
0.0017
75-07-0*0
Dioxidanyl O[O]15.1212.22± 0.15kJ/mol33.00674 ±
0.00060
3170-83-0*0
Fluoromethane CF-227.46-235.49± 0.23kJ/mol34.03292 ±
0.00083
593-53-3*0
Hydrogen peroxide OO-129.480-135.465± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*0
Bromomethane CBr-20.86-36.26± 0.18kJ/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]391.061391.619± 0.098kJ/mol14.02658 ±
0.00081
2465-56-7*1
Methylene [CH2]428.72429.13± 0.11kJ/mol14.02658 ±
0.00081
2465-56-7*2
Hypochlorous acid OCl-73.869-76.809± 0.027kJ/mol52.46004 ±
0.00095
7790-92-3*0
Propyne CC#C192.77185.71± 0.24kJ/mol40.0639 ±
0.0024
74-99-7*0
Formic acid C(=O)O-371.10-378.42± 0.22kJ/mol46.0254 ±
0.0010
64-18-6*1
Dibromine BrBr45.6830.88± 0.11kJ/mol159.8080 ±
0.0020
7726-95-6*0
Tetrachloromethane C(Cl)(Cl)(Cl)Cl-93.41-95.58± 0.43kJ/mol153.8215 ±
0.0037
56-23-5*0
Methylamine CN-6.67-21.38± 0.27kJ/mol31.05714 ±
0.00088
74-89-5*0
Fluoride [F-]-250.907-249.122± 0.048kJ/mol18.99895178 ±
0.00000050
16984-48-8*0
Ketene C=C=O-45.35-48.47± 0.12kJ/mol42.0367 ±
0.0016
463-51-4*0
Tetrafluoromethane C(F)(F)(F)F-927.50-933.47± 0.25kJ/mol88.00431 ±
0.00080
75-73-0*0
Chloroethane CCCl-96.90-111.49± 0.26kJ/mol64.5138 ±
0.0019
75-00-3*0
Vinyl C=[CH]301.16296.96± 0.33kJ/mol27.0452 ±
0.0016
2669-89-8*0
Acetone CC(=O)C-200.08-216.77± 0.36kJ/mol58.0791 ±
0.0025
67-64-1*0
Methylidyne [CH]592.820596.154± 0.099kJ/mol13.01864 ±
0.00080
3315-37-5*0
Methoxide C[O-]-122.64-130.37± 0.30kJ/mol31.03447 ±
0.00088
3315-60-4*0
Acetonitrile CC#N81.0974.04± 0.25kJ/mol41.0520 ±
0.0016
75-05-8*0
Oxonium [OH3+]605.84599.09± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*0
Diiodine II65.49762.417± 0.0041kJ/mol253.808940 ±
0.000060
7553-56-2*0
Phenyl c1cccc[c]1350.35336.99± 0.53kJ/mol77.1039 ±
0.0048
2396-01-2*0
Toluene c1ccc(cc1)C73.2950.01± 0.34kJ/mol92.1384 ±
0.0056
108-88-3*0
Fluoroform C(F)(F)F-689.03-695.98± 0.41kJ/mol70.01385 ±
0.00080
75-46-7*0
Ozone O=[O+][O-]144.397141.734± 0.039kJ/mol47.99820 ±
0.00090
10028-15-6*0
Trifluoromethyl [C](F)(F)F-464.96-467.76± 0.48kJ/mol69.00591 ±
0.00080
2264-21-3*0
Ethylium [CH2+]1[CH2][H]1914.84902.77± 0.31kJ/mol29.0606 ±
0.0016
14936-94-8*0
Nitrilomethyl [C]#N436.75440.04± 0.14kJ/mol26.01744 ±
0.00080
2074-87-5*0
1,3-Butadiene C=CC=C125.30110.83± 0.36kJ/mol54.0904 ±
0.0032
106-99-0*0
Phenol c1ccc(cc1)O-74.66-93.26± 0.64kJ/mol94.1112 ±
0.0048
108-95-2*0
Hydroxymethyl [CH2]O-10.44-16.75± 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-]-206.623-212.685± 0.056kJ/mol79.90455 ±
0.00100
24959-67-9*0
Hypobromous acid OBr-51.61-62.08± 0.47kJ/mol96.9113 ±
0.0010
13517-11-8*0
Methoxy C[O]28.8221.45± 0.29kJ/mol31.03392 ±
0.00088
2143-68-2*0
Formyl [CH]=O41.39441.770± 0.097kJ/mol29.01804 ±
0.00086
2597-44-6*0
Acetic acid CC(=O)O-418.86-432.98± 0.43kJ/mol60.0520 ±
0.0017
64-19-7*1
Chlorooxidanyl Cl=O101.125101.716± 0.035kJ/mol51.45210 ±
0.00095
14989-30-1*0
Oxomethylium [CH+]=O827.770827.185± 0.097kJ/mol29.01749 ±
0.00086
17030-74-9*0
Allene C=C=C197.32189.83± 0.25kJ/mol40.0639 ±
0.0024
463-49-0*0
Imidogen [NH]358.74358.78± 0.17kJ/mol15.014680 ±
0.000099
13774-92-0*0
Dioxymethyl [O-]\[O+]=C111.90104.89± 0.63kJ/mol46.0254 ±
0.0010
56077-92-0*0
Difluorophosgene C(F)(F)=O-603.35-606.45± 0.41kJ/mol66.00691 ±
0.00085
353-50-4*0
Nitric acid O[N+](=O)[O-]-124.50-134.21± 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]180.03168.30± 0.45kJ/mol41.0718 ±
0.0024
1981-80-2*0
Iodide [I-]-187.995-188.396± 0.0021kJ/mol126.905019 ±
0.000030
20461-54-5*0
Cyanogen chloride ClC#N134.95135.65± 0.46kJ/mol61.4701 ±
0.0012
506-77-4*0
iso-Butane CC(C)C-106.03-134.64± 0.31kJ/mol58.1222 ±
0.0033
75-28-5*0
Isocyanic acid N=C=O-116.01-119.00± 0.30kJ/mol43.02478 ±
0.00086
75-13-8*0
Methylium [CH3+]1099.3361095.392± 0.056kJ/mol15.03397 ±
0.00083
14531-53-4*0
Hypofluorous acid OF-84.39-87.29± 0.19kJ/mol36.00574 ±
0.00031
14034-79-8*0
Hydrogen chloride Cl-166.452± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*834
Ethoxide CC[O-]-163.83-178.77± 0.47kJ/mol45.0610 ±
0.0017
16331-64-9*0
Propargyl [CH2]C#C353.97351.37± 0.37kJ/mol39.0559 ±
0.0024
2932-78-7*0
Dichloromethane C(Cl)Cl-86.70-93.56± 0.52kJ/mol84.9320 ±
0.0020
75-09-2*0
Vinyl chloride C=CCl29.2621.68± 0.30kJ/mol62.4979 ±
0.0018
75-01-4*0
Chlorobenzene c1ccc(cc1)Cl67.1452.18± 0.61kJ/mol112.5566 ±
0.0049
108-90-7*0
Cyanogen bromide BrC#N186.7180.1± 1.1kJ/mol105.9214 ±
0.0013
506-68-3*0
Iodomethane CI24.5014.96± 0.18kJ/mol141.93899 ±
0.00083
74-88-4*0
Hydroxyformyl O[C]=O-181.09-184.06± 0.46kJ/mol45.0174 ±
0.0010
2564-86-5*1
Oxygen atom anion [O-]105.868108.097± 0.0021kJ/mol15.99995 ±
0.00030
14337-01-0*0
Trihydrogen cation [H]1[H+][H]11110.3041106.696± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*0
Methyl hydroperoxide COO-114.94-127.76± 0.70kJ/mol48.0413 ±
0.0010
3031-73-0*0
Methylperoxy CO[O]22.3012.66± 0.47kJ/mol47.0333 ±
0.0010
2143-58-0*0
n-Propyl CC[CH2]118.30100.90± 0.55kJ/mol43.0877 ±
0.0024
2143-61-5*0
iso-Propyl C[CH]C105.3188.44± 0.53kJ/mol43.0877 ±
0.0024
2025-55-0*0
2-Hydroxyethyl [CH2]CO-13.34-26.60± 0.56kJ/mol45.0605 ±
0.0017
4422-54-2*1
Tetrabromomethane C(Br)(Br)(Br)Br132.9103.3± 1.3kJ/mol331.6267 ±
0.0041
558-13-4*0
Difluoromethane C(F)F-443.08-450.70± 0.33kJ/mol52.02339 ±
0.00081
75-10-5*0
Cyanoacetylene C#CC#N371.94373.68± 0.67kJ/mol51.0468 ±
0.0024
1070-71-9*0
Oxygen difluoride FOF26.8224.56± 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
Isocyanomethane C[N+]#[C-]183.18176.71± 0.67kJ/mol41.0520 ±
0.0016
593-75-9*0
Propynylidene [CH]=C=[CH]543.41546.40± 0.64kJ/mol38.0480 ±
0.0024
67152-18-5*1
Ethenol C=CO-112.77-123.97± 0.66kJ/mol44.0526 ±
0.0017
557-75-5*1
Chloroform C(Cl)(Cl)Cl-97.29-102.19± 0.50kJ/mol119.3767 ±
0.0028
67-66-3*0
Fluoromethylidyne [C]F243.14246.74± 0.13kJ/mol31.00910 ±
0.00080
3889-75-6*0
Acrylonitrile C=CC#N193.84187.08± 0.71kJ/mol53.0627 ±
0.0024
107-13-1*1
Oxygen atom cation [O+]1560.7861562.644± 0.0021kJ/mol15.99885 ±
0.00030
14581-93-2*0
1,2-Propadiene-1,3-diylidene [C]=C=[C]814.66823.62± 0.55kJ/mol36.0321 ±
0.0024
12075-35-3*0
Cyanic fluoride FC#N8.789.11± 0.69kJ/mol45.01584 ±
0.00080
1495-50-7*0
1-Hydroxyethyl C[CH]O-42.74-56.17± 0.58kJ/mol45.0605 ±
0.0017
2348-46-1*1
Acetyl C[C]=O-3.35-10.01± 0.34kJ/mol43.0446 ±
0.0016
3170-69-2*0
Formate C(=O)[O-]-463.20-466.84± 0.56kJ/mol45.0180 ±
0.0010
71-47-6*0
Methyl formate COC=O-346.85-359.90± 0.84kJ/mol60.0520 ±
0.0017
107-31-3*1
Tetrafluoroethylene C(=C(F)F)(F)F-671.03-674.43± 0.54kJ/mol100.0150 ±
0.0016
116-14-3*0
Ethyl bromide CCBr-41.38-63.33± 0.25kJ/mol108.9651 ±
0.0019
74-96-4*0
Vinyl bromide C=CBr88.5773.76± 0.58kJ/mol106.9492 ±
0.0019
593-60-2*0
Chlorine fluoride ClF-55.617-55.712± 0.055kJ/mol54.45110 ±
0.00090
7790-89-8*0
Hydride [H-]143.264145.228± 0.000kJ/mol1.008489 ±
0.000070
12184-88-2*0
Diazynium N#[NH+]1042.541038.93± 0.68kJ/mol29.02087 ±
0.00016
12357-66-3*0
Methanimine C=N96.4888.57± 0.42kJ/mol29.04126 ±
0.00083
2053-29-4*0
Nitrite O=[N-]=O-182.63-185.44± 0.46kJ/mol46.00609 ±
0.00060
14797-65-0*0
Hydroxylamine NO-33.23-43.61± 0.46kJ/mol33.02996 ±
0.00037
7803-49-8*1
Nitrosyl hydride N=O109.93106.96± 0.11kJ/mol31.01408 ±
0.00032
14332-28-6*0
Nitrous acid N(=O)O-73.008-79.152± 0.078kJ/mol47.01348 ±
0.00061
7782-77-6*1
Ethynylene [C]=[C]820.28828.75± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*0
n-Butyl CCC[CH2]102.7380.22± 0.70kJ/mol57.1143 ±
0.0033
2492-36-6*0
Cyclopentadiene C1C=CC=C1151.06133.94± 0.66kJ/mol66.1011 ±
0.0040
542-92-7*0
Methoxymethane COC-166.46-183.96± 0.40kJ/mol46.0684 ±
0.0017
115-10-6*0
Methyl acetate CC(=O)OC-394.29-413.15± 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
Chlorotrifluoromethane C(F)(F)(F)Cl-704.50-709.61± 0.59kJ/mol104.4586 ±
0.0012
75-72-9*0
Vinyl fluoride C=CF-134.56-142.37± 0.45kJ/mol46.0436 ±
0.0016
75-02-5*0
Phenylium c1cccc[c+]11148.391135.61± 0.85kJ/mol77.1034 ±
0.0048
17333-73-2*0
Formamide NC=O-178.52-188.79± 0.38kJ/mol45.04066 ±
0.00088
75-12-7*0
Fluorooxidanyl [O]F110.27110.89± 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+]921.95911.71± 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 C#[C]563.87567.98± 0.14kJ/mol25.0293 ±
0.0016
2122-48-7*0
cis-2-Butene C/C=C\C14.19-7.08± 0.41kJ/mol56.1063 ±
0.0032
590-18-1*0
Ethynide C#[C-]277.41280.82± 0.18kJ/mol25.0299 ±
0.0016
29075-95-4*0
Formic acid C(=O)O-354.75-361.86± 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-257.21-272.07± 0.36kJ/mol48.0595 ±
0.0016
353-36-6*0
Bromotrifluoromethane C(F)(F)(F)Br-638.92-651.04± 0.45kJ/mol148.9099 ±
0.0013
75-63-8*0
Phenide c1cccc[c-]1244.32230.90± 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-]-60.84-74.74± 0.46kJ/mol61.0401 ±
0.0010
75-52-5*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
Methylidyne [CH]664.55667.88± 0.59kJ/mol13.01864 ±
0.00080
3315-37-5*2
Ethanide C[CH2-]155.28144.20± 0.89kJ/mol29.0616 ±
0.0016
25013-41-6*0
Aminomethyl [CH2]N159.16149.32± 0.42kJ/mol30.04920 ±
0.00085
10507-29-6*0
Peroxyformic acid C(=O)OO-279.26-288.61± 0.90kJ/mol62.0248 ±
0.0012
107-32-4*1
Cyclopropane C1CC170.9753.85± 0.41kJ/mol42.0797 ±
0.0024
75-19-4*0
Propadienylidene C=C=[C]554.41555.55± 0.41kJ/mol38.0480 ±
0.0024
60731-10-4*0
Ethoxy CC[O]1.30-12.61± 0.47kJ/mol45.0605 ±
0.0017
2154-50-9*51
Cyanooxidanyl N#C[O]126.89127.37± 0.34kJ/mol42.01684 ±
0.00086
22400-26-6*0
Phenolate c1ccc(cc1)[O-]-146.37-161.84± 0.88kJ/mol93.1038 ±
0.0048
3229-70-7*0
Dimethylamine CNC3.75-17.89± 0.47kJ/mol45.0837 ±
0.0017
124-40-3*0
Cyclopentadienyl [CH]1C=CC=C1274.50261.39± 0.93kJ/mol65.0932 ±
0.0040
2143-53-5*0
Acrylonitrile C=CC#N193.84187.08± 0.71kJ/mol53.0627 ±
0.0024
107-13-1*0
Bromooxidanyl Br[O]131.14123.61± 0.28kJ/mol95.9034 ±
0.0010
15656-19-6*0
Hypobromite Br[O-]-96.14-103.63± 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
Peroxynitrous acid OON=O-5.81-14.25± 0.36kJ/mol63.01288 ±
0.00091
14691-52-2*3
Ethylidene [CH]C373.62366.39± 0.77kJ/mol28.0532 ±
0.0016
4218-50-2*2
Cyanogen N#CC#N308.16310.10± 0.42kJ/mol52.0349 ±
0.0016
460-19-5*0
Cyanide [C-]#N63.95967.245± 0.094kJ/mol26.01799 ±
0.00080
57-12-5*0
Isobutene CC(=C)C4.02-17.04± 0.42kJ/mol56.1063 ±
0.0032
115-11-7*0
1-Butene CCC=C21.000.05± 0.38kJ/mol56.1063 ±
0.0032
106-98-9*0
n-Pentane CCCCC-114.40-146.28± 0.31kJ/mol72.1488 ±
0.0041
109-66-0*0
Fluorodioxidanyl FO[O]26.8125.10± 0.26kJ/mol50.99720 ±
0.00060
15499-23-7*0
Dichloromethylene [C](Cl)Cl229.51230.69± 0.64kJ/mol82.9161 ±
0.0020
1605-72-7*2
Difluorodioxidane FOOF35.2731.55± 0.41kJ/mol69.99561 ±
0.00060
7783-44-0*0
Nitrous oxide [N-]=[N+]=O85.99782.567± 0.097kJ/mol44.01288 ±
0.00033
10024-97-2*0
(E)-Diazene [H]/N=N/[H]207.10199.96± 0.44kJ/mol30.02936 ±
0.00020
15626-43-4*0
Hydroxyoxomethylium O[C+]=O600.66597.58± 0.44kJ/mol45.0169 ±
0.0010
638-71-1*0
Ethylidene [CH]C361.30354.29± 0.75kJ/mol28.0532 ±
0.0016
4218-50-2*1
Vinylium [CH+]1[CH][H]11118.951115.50± 0.57kJ/mol27.0447 ±
0.0016
14604-48-9*0
Water O-285.830± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*590
Hydroxymethylium [CH2+]O717.67709.73± 0.19kJ/mol31.03337 ±
0.00088
18682-95-6*0
Cyanomethyl [CH2]C#N263.32260.44± 0.77kJ/mol40.0440 ±
0.0016
2932-82-3*0
Fluoroacetylene C#CF104.95105.66± 0.41kJ/mol44.0277 ±
0.0016
2713-09-9*0
Peroxyformyl C(=O)O[O]-100.42-105.72± 0.93kJ/mol61.0168 ±
0.0012
56240-83-6*1
Cyclopropene C1C=C1292.20283.47± 0.53kJ/mol40.0639 ±
0.0024
2781-85-3*0
n-Hexane CCCCCC-130.05-166.92± 0.34kJ/mol86.1754 ±
0.0049
110-54-3*0
Trioxidane OOO-82.04-90.88± 0.70kJ/mol50.01408 ±
0.00091
14699-99-1*1
Ketenyl [CH]=C=O177.06178.16± 0.58kJ/mol41.0287 ±
0.0016
51095-15-9*0
Formic acid C(=O)O-371.10-378.40± 0.22kJ/mol46.0254 ±
0.0010
64-18-6*0
Dioxidanide O[O-]-88.87-91.53± 0.34kJ/mol33.00729 ±
0.00060
14691-59-9*0
Methyl formate COC=O-326.6-339.1± 1.1kJ/mol60.0520 ±
0.0017
107-31-3*2
Trichloromethyl [C](Cl)(Cl)Cl72.0371.55± 0.84kJ/mol118.3688 ±
0.0028
3170-80-7*0
1,1-Dichloroethane CC(Cl)Cl-120.30-133.07± 0.44kJ/mol98.9586 ±
0.0024
75-34-3*0
Bromoform C(Br)(Br)Br75.048.9± 1.2kJ/mol252.7306 ±
0.0031
75-25-2*0
Bromobenzene c1ccc(cc1)Br126.6104.6± 1.3kJ/mol157.0079 ±
0.0049
108-86-1*0
Benzaldehyde c1ccc(cc1)C=O-19.37-37.17± 0.92kJ/mol106.1219 ±
0.0056
100-52-7*0
Chlorous acid OCl=O25.7320.68± 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-]114.74111.87± 0.30kJ/mol16.02317 ±
0.00016
17655-31-1*0
Aminooxy N[O]70.9364.33± 0.76kJ/mol32.02202 ±
0.00034
13408-29-2*0
Hydroxyamidogen [NH]O101.594.7± 1.1kJ/mol32.02202 ±
0.00034
13940-32-4*1
Nitrate O=[N+]([O-])[O-]-300.20-306.67± 0.60kJ/mol62.00549 ±
0.00090
14797-55-8*0
Cyanogen iodide IC#N222.7222.1± 1.6kJ/mol152.92191 ±
0.00080
506-78-5*0
Formyl anion [CH-]=O11.5911.98± 0.44kJ/mol29.01859 ±
0.00086
57340-31-5*0
2-Propynylidyne C#C[C]717.98722.34± 0.82kJ/mol37.0400 ±
0.0024
53590-28-6*0
Cyclopentane C1CCCC1-43.90-76.46± 0.41kJ/mol70.1329 ±
0.0041
287-92-3*0
Ethoxy CC[O]5.56-8.87± 0.47kJ/mol45.0605 ±
0.0017
2154-50-9*52
Hypofluorite [O-]F-108.84-108.67± 0.48kJ/mol34.99835 ±
0.00030
12763-66-5*0
Chloromethylene [CH]Cl320.26320.55± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*2
Dibromomethane C(Br)Br25.54.1± 1.0kJ/mol173.8346 ±
0.0022
74-95-3*0
Trifluoromethylium [C+](F)(F)F409.49406.28± 0.47kJ/mol69.00536 ±
0.00080
18851-76-8*0
1,1-Difluoroethene C=C(F)F-343.58-350.64± 0.77kJ/mol64.0341 ±
0.0016
75-38-7*0
3-Buten-2-one CC(=O)C=C-95.56-111.80± 0.87kJ/mol70.0898 ±
0.0032
78-94-4*1
Urea NC(=O)N-218.26-234.66± 0.42kJ/mol60.05534 ±
0.00091
57-13-6*0
Isocyanoacetylene C#C[N+]#[C-]484.7486.9± 1.1kJ/mol51.0468 ±
0.0024
66723-45-3*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-583.48-589.36± 0.50kJ/mol195.91038 ±
0.00080
2314-97-8*0
Nitrogen atom cation [N+]1872.9071875.688± 0.024kJ/mol14.006191 ±
0.000070
14158-23-7*0
Azido radical [N]N=[N]452.22449.64± 0.60kJ/mol42.02022 ±
0.00021
12596-60-0*0
Trinitrogen cation [N]N=[N+]1519.391516.76± 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+]984.485984.480± 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
Hydrazoic acid N=[N+]=[N-]297.87291.57± 0.49kJ/mol43.02816 ±
0.00022
7782-79-8*0
Methylene anion [CH2-]328.17328.60± 0.19kJ/mol14.02713 ±
0.00081
50928-07-9*0
Ethanium [CH3+][H][CH3]874.33858.07± 0.62kJ/mol31.0764 ±
0.0017
24669-33-8*1
Hydrogen bromide Br-120.93± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*800
Vinylidene [C]=C411.20412.12± 0.32kJ/mol26.0373 ±
0.0016
2143-69-3*0
Acetylium C[C+]=O666.47659.18± 0.45kJ/mol43.0441 ±
0.0016
15762-07-9*0
Hydrogen isocyanide [C]=N191.88192.26± 0.36kJ/mol27.02538 ±
0.00081
6914-07-4*0
2-Butyne CC#CC159.35146.38± 0.57kJ/mol54.0904 ±
0.0032
503-17-3*0
Hydroxymethylene [CH]O112.67108.90± 0.28kJ/mol30.02598 ±
0.00087
19710-56-6*1
Carbonic acid OC(=O)O-602.75-612.92± 0.75kJ/mol62.0248 ±
0.0012
463-79-6*1
Peroxyformate C(=O)O[O-]-340.95-346.41± 0.96kJ/mol61.0174 ±
0.0012
104960-05-6*1
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
Dicarbon monoxide [C]=C=O377.13381.17± 0.98kJ/mol40.0208 ±
0.0016
12071-23-7*1
Ethynol C#CO95.4792.99± 0.94kJ/mol42.0367 ±
0.0016
32038-79-2*2
Formyloxidanyl C(=O)[O]-125.86-127.52± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*1
Glyoxal O=CC=O-207.73-213.36± 0.61kJ/mol58.0361 ±
0.0017
107-22-2*1
Trimethylamine CN(C)C1.60-27.26± 0.90kJ/mol59.1103 ±
0.0025
75-50-3*0
1,1,1-Trichloroethane CC(Cl)(Cl)Cl-134.33-144.91± 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-476.02-482.22± 0.98kJ/mol86.4681 ±
0.0012
75-45-6*0
Fluoromethylene [CH]F148.38148.66± 0.43kJ/mol32.01704 ±
0.00080
13453-52-6*2
Fluoroformyl F[C]=O-176.62-176.04± 0.37kJ/mol47.00850 ±
0.00085
1871-24-5*0
2-Bromoethanol BrCCO-196.43-220.49± 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
Propionaldehyde CCC=O-171.38-186.79± 0.25kJ/mol58.0791 ±
0.0025
123-38-6*0
Chloronium [H][ClH+]881.3878.2± 1.1kJ/mol37.46803 ±
0.00091
36658-55-6*0
Cyanomethylene [CH]C#N479.9483.2± 1.1kJ/mol39.0361 ±
0.0016
2612-62-6*1
Bromonium [H][BrH+]925.0914.3± 1.5kJ/mol81.9193 ±
0.0010
36658-54-5*0
Hydrazine NN111.5797.41± 0.49kJ/mol32.04524 ±
0.00031
302-01-2*0
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*1
Methanide [CH3-]141.08137.63± 0.25kJ/mol15.03507 ±
0.00083
15194-58-8*0
Methyliumyl [CH2+]1393.201394.06± 0.11kJ/mol14.02603 ±
0.00081
15091-72-2*0
Trioxidanide OO[O-]-120.0-123.1± 1.6kJ/mol49.00669 ±
0.00090
89965-38-8*2
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+]N763.86751.88± 0.65kJ/mol30.04865 ±
0.00085
488821-23-4*0
Isocyanomethanide [CH2-][N+]#[C-]253.4250.4± 1.1kJ/mol40.0446 ±
0.0016
81704-80-5*0
1-Methylethenyl C[C]=C262.98252.58± 0.77kJ/mol41.0718 ±
0.0024
15552-77-9*0
trans-2-Butene C/C=C/C9.38-11.18± 0.41kJ/mol56.1063 ±
0.0032
624-64-6*0
iso-Pentane CCC(C)C-119.17-153.22± 0.43kJ/mol72.1488 ±
0.0041
78-78-4*0
1-Hydroxyethyl C[CH]O-41.30-54.77± 0.80kJ/mol45.0605 ±
0.0017
2348-46-1*2
Protonated oxirane [OH+]1CC1725.35709.18± 0.62kJ/mol45.0600 ±
0.0017
*38607-31-7*0
Methanediol C(O)O-379.37-393.57± 0.93kJ/mol48.0413 ±
0.0010
463-57-0*1
Methoxyethane CCOC-194.29-217.18± 0.55kJ/mol60.0950 ±
0.0025
540-67-0*0
Acetic acid CC(=O)O-397.87-411.64± 0.84kJ/mol60.0520 ±
0.0017
64-19-7*2
Acetyl chloride CC(=O)Cl-232.60-241.59± 0.33kJ/mol78.4973 ±
0.0019
75-36-5*0
Chlorohydroxymethyl [CH](Cl)O-54.9-60.9± 1.1kJ/mol65.4787 ±
0.0012
147139-06-8*1
1,1-Dichloroethene C=C(Cl)Cl8.932.94± 0.49kJ/mol96.9427 ±
0.0024
75-35-4*0
Dichlorodifluoromethane C(F)(F)(Cl)Cl-489.46-493.65± 0.67kJ/mol120.9129 ±
0.0020
75-71-8*0
Fluorodichloromethane C(F)(Cl)Cl-278.21-283.66± 0.91kJ/mol102.9224 ±
0.0020
75-43-4*0
Difluoromethylene [C](F)F-193.91-193.44± 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-378.64-382.23± 0.31kJ/mol48.01644 ±
0.00086
1493-02-3*0
Benzyl c1ccc(cc1)[CH2]229.93211.11± 0.60kJ/mol91.1305 ±
0.0056
2154-56-5*0
Methyl nitrite CON=O-55.65-67.44± 0.46kJ/mol61.0401 ±
0.0010
624-91-9*2
Hydrogen chloride Cl-166.991± 0.023kJ/mol36.46064 ±
0.00090
7647-01-0*800
Carbamoyl N[C]=O-7.52-13.93± 0.83kJ/mol44.03272 ±
0.00087
2858-51-7*0
Peroxyhypochlorous acid OOCl3.94-1.33± 0.95kJ/mol68.4594 ±
0.0011
67952-07-2*0
Hypoiodite I[O-]-102.48-104.29± 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
Ammonium [NH4+]-133.075± 0.056kJ/mol18.03795 ±
0.00029
14798-03-9*800
Hydrazino N[NH]234.80224.28± 0.78kJ/mol31.03730 ±
0.00025
13598-46-4*0
Methylidyne anion [CH-]475.74479.07± 0.22kJ/mol13.01919 ±
0.00080
28604-54-8*0
Methylamidogen C[NH]187.46176.81± 0.47kJ/mol30.04920 ±
0.00085
15622-51-2*0
Hydrogen isocyanide cation [C+]=N1352.91352.8± 1.3kJ/mol27.02483 ±
0.00081
74158-11-5*0
iso-Propylium C[CH+]C822.90805.82± 0.25kJ/mol43.0871 ±
0.0024
19252-53-0*0
n-Propylide CC[CH2-]122.9105.2± 1.2kJ/mol43.0882 ±
0.0024
59513-13-2*0
1,2-Propadienyl anion C=C=[CH-]265.64262.59± 0.71kJ/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
Dichloride Cl[Cl-]-229.8-228.7± 1.4kJ/mol70.9059 ±
0.0018
12595-89-0*0
t-Butyl C[C](C)C75.5950.30± 0.66kJ/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
1-Butyne CCC#C179.52165.94± 0.65kJ/mol54.0904 ±
0.0032
107-00-6*0
Chlorine atom cation [Cl+]1370.8061372.602± 0.0011kJ/mol35.45215 ±
0.00090
24203-47-2*0
2-Hydroxyethyl [CH2]CO-10.79-23.42± 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
Methanediol C(O)O-369.06-382.22± 0.96kJ/mol48.0413 ±
0.0010
463-57-0*2
Chloro hypochlorite ClOCl79.7877.97± 0.36kJ/mol86.9048 ±
0.0018
7791-21-1*0
Methoxyethene C=COC-89.0-106.9± 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]167.69151.24± 0.97kJ/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-32.57-41.72± 0.59kJ/mol198.2728 ±
0.0030
75-62-7*0
Chloromethylidyne [C]Cl430.42434.18± 0.67kJ/mol47.4634 ±
0.0012
3889-76-7*0
Hydroperoxonium [OH2+]O738.1727.8± 1.2kJ/mol35.02207 ±
0.00064
70850-26-9*1
Chloromethanol ClCO-232.4-242.6± 1.2kJ/mol66.4866 ±
0.0013
15454-33-8*0
Chloromethoxy C(Cl)[O]-12.0-18.9± 1.1kJ/mol65.4787 ±
0.0012
114282-89-2*0
Chlorine pentafluoride FCl(F)(F)(F)F-226.1-234.2± 1.7kJ/mol130.44472 ±
0.00090
13637-63-3*0
Tetraiodomethane C(I)(I)(I)I332.0326.9± 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
Chlorooxy hypochlorite ClOOCl134.56131.32± 0.56kJ/mol102.9042 ±
0.0019
12292-23-8*0
2-Chloroethanol ClCCO-249.84-266.56± 0.59kJ/mol80.5132 ±
0.0019
107-07-3*0
o-Benzyne C1=CC#CC=C1467.91458.99± 0.88kJ/mol76.0960 ±
0.0048
462-80-6*2
Tropyl [CH]1C=CC=CC=C1295.7278.2± 1.1kJ/mol91.1305 ±
0.0056
3551-27-7*0
Iodobenzene c1ccc(cc1)I177.66161.67± 0.99kJ/mol204.0084 ±
0.0048
591-50-4*0
Acetonyl CC(=O)[CH2]-19.05-31.76± 0.98kJ/mol57.0712 ±
0.0024
3122-07-4*0
Trifluoroethene FC(F)=CF-493.1-498.2± 1.6kJ/mol82.0245 ±
0.0016
359-11-5*0
Isocyanoethene C=C[N+]#[C-]285.04278.54± 0.97kJ/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
Water dimer O.O-491.085-499.125± 0.052kJ/mol36.03056 ±
0.00066
25655-83-8*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
Chlorodioxidanyl ClO[O]103.91102.82± 0.37kJ/mol67.4515 ±
0.0011
17376-09-9*0
Oxoammoniumyl [NH+]=O1092.451089.53± 0.67kJ/mol31.01353 ±
0.00032
63559-87-5*0
Peroxynitrous acid OON=O7.770.69± 0.41kJ/mol63.01288 ±
0.00091
14691-52-2*1
Carbon anion [C-]589.620594.767± 0.047kJ/mol12.01125 ±
0.00080
14337-00-9*0
Perchloryl O=Cl(=O)[O]191.69186.01± 0.61kJ/mol83.4509 ±
0.0013
13932-10-0*0
Chlorate O=Cl(=O)[O-]-207.3-212.8± 1.6kJ/mol83.4514 ±
0.0013
14866-68-3*0
Ethylidyne [C]C508.53504.83± 0.80kJ/mol27.0452 ±
0.0016
67624-57-1*0
Ethynylium C#[C+]1687.581690.91± 0.16kJ/mol25.0288 ±
0.0016
16456-59-0*0
Methylamidogen anion C[NH-]145.18134.35± 0.66kJ/mol30.04975 ±
0.00085
54448-39-4*0
Iminomethyl cation [NH+]#C953.3949.3± 1.4kJ/mol28.03277 ±
0.00082
196216-36-1*0
2-Hydrotrioxy [O][OH][O]299.6293.9± 1.2kJ/mol49.00614 ±
0.00090
*12500-78-6*0
Chloroacetylene C#CCl228.15229.01± 0.72kJ/mol60.4820 ±
0.0018
593-63-5*0
Methylperoxy anion CO[O-]-89.88-100.02± 0.64kJ/mol47.0339 ±
0.0010
35683-44-4*0
1-Propenyl CC=[CH]278.23267.38± 0.78kJ/mol41.0718 ±
0.0024
6067-68-1*2
Propylidyne CC[C]492.4482.8± 1.2kJ/mol41.0718 ±
0.0024
85056-54-8*1
Propargylenide C#C[CH-]436.9439.4± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*2
Chloric acid OCl(=O)=O2.1-5.0± 1.6kJ/mol84.4588 ±
0.0013
7790-93-4*0
2-Propyn-1-ylium-1-ylidene C#C[C+]1598.11602.5± 1.3kJ/mol37.0395 ±
0.0024
75104-46-0*0
Difluoride F[F-]-291.0-290.2± 1.5kJ/mol37.9973550 ±
0.0000010
12184-85-9*0
Oxoethanide C[C-]=O-44.0-49.6± 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
Hydrogen fluoride F-321.04± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*818
Hydroxyformyl O[C]=O-174.30-177.32± 0.51kJ/mol45.0174 ±
0.0010
2564-86-5*2
Hydroxyformyl anion [C-](=O)O-319.46-322.04± 0.59kJ/mol45.0180 ±
0.0010
78944-70-4*2
Ethoxyethane CCOCC-222.88-250.30± 0.82kJ/mol74.1216 ±
0.0033
60-29-7*0
Fluoronium [H][F+][H]774.11771.17± 0.88kJ/mol21.01373 ±
0.00014
12206-67-6*2
Acetone enol C=C(O)C-151.8-169.2± 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]165.4142.4± 1.4kJ/mol58.1024 ±
0.0025
30208-47-0*0
Trioxidane OOO-72.75-81.24± 0.83kJ/mol50.01408 ±
0.00091
14699-99-1*2
Bromanylium [Br+]1257.7741251.712± 0.056kJ/mol79.90345 ±
0.00100
22541-56-6*0
Chloromethide [CH2-]Cl56.353.0± 2.0kJ/mol49.4798 ±
0.0012
60291-29-4*0
Hexachloroethane C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl-147.0-149.4± 1.3kJ/mol236.7376 ±
0.0056
67-72-1*0
cis-1,2-Dichloroethene C(\Cl)=C\Cl3.46-2.54± 0.54kJ/mol96.9427 ±
0.0024
156-59-2*0
Dichloroacetylene ClC#CCl230.07233.38± 0.95kJ/mol94.9268 ±
0.0024
7572-29-4*0
Difluoromethylene [C](F)F-193.91-193.44± 0.38kJ/mol50.00751 ±
0.00080
2154-59-8*0
Hexafluoroethane C(F)(F)(F)C(F)(F)F-1334.20-1342.49± 0.99kJ/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-405.75-422.99± 0.99kJ/mol64.0589 ±
0.0017
371-62-0*0
1,3-Butadiyne C#CC#C457.83459.56± 0.77kJ/mol50.0587 ±
0.0032
460-12-8*0
Benzylide c1ccc(cc1)[CH2-]141.78122.86± 0.44kJ/mol91.1310 ±
0.0056
18860-15-6*0
Ethylbenzene c1ccc(cc1)CC58.1729.71± 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
Acetonate CC(=[O-])[CH2]-187.86-201.41± 0.98kJ/mol57.0717 ±
0.0024
24262-31-5*0
Propadienone C=C=C=O131.94130.30± 0.79kJ/mol54.0474 ±
0.0024
61244-93-7*0
Oxomethaniminium [NH2+]=C=O695.1688.5± 1.0kJ/mol44.03217 ±
0.00087
59348-22-0*0
Nitrosomethane CN=O81.371.4± 1.3kJ/mol45.04066 ±
0.00088
865-40-7*0
1-Cyanoethylidene C[C]C#N475.6470.5± 1.1kJ/mol53.0627 ±
0.0024
498544-34-6*2
3-Imino-2-propen-1-ylidene [CH]C=C=N530.6525.9± 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 C=[C]C#N419.7419.6± 1.3kJ/mol52.0547 ±
0.0024
15091-87-9*0
1-Cyanovinyl anion C=[C-]C#N224.4221.6± 1.3kJ/mol52.0553 ±
0.0024
36259-97-9*0
2-Cyanovinyl [CH]=CC#N447.9445.5± 1.2kJ/mol52.0547 ±
0.0024
189141-20-6*1
Dioxaziridinyl [N]1OO1355.1352.6± 1.4kJ/mol46.00554 ±
0.00060
66252-29-7*0
Nitroxyl O=[N+]([O-])[O]79.4074.14± 0.19kJ/mol62.00494 ±
0.00090
12033-49-7*0
Azanylium [NH3+]944.273937.318± 0.030kJ/mol17.03001 ±
0.00022
19496-55-0*0
Isodiazene [N]N307.53300.45± 0.75kJ/mol30.02936 ±
0.00020
28647-38-3*0
Nitryl hydride [NH+](=O)[O-]-37.1-44.1± 1.5kJ/mol47.01348 ±
0.00061
90266-90-3*0
Bromochlorane BrCl21.87914.435± 0.060kJ/mol115.3567 ±
0.0013
13863-41-7*0
Carbon cation [C+]1797.8501803.448± 0.047kJ/mol12.01015 ±
0.00080
14067-05-1*0
Oxygen atom [O]436.666438.523± 0.0021kJ/mol15.99940 ±
0.00030
17778-80-2*2
Methyliumylidene [CH+]1619.7541623.098± 0.055kJ/mol13.01809 ±
0.00080
24361-82-8*0
Dioxygen anion O=[O-]-43.36-42.72± 0.17kJ/mol31.99935 ±
0.00060
11062-77-4*0
Ethylidyne [C]C508.53504.83± 0.80kJ/mol27.0452 ±
0.0016
67624-57-1*1
Vinylidene anion [C-]=C364.02363.83± 0.51kJ/mol26.0378 ±
0.0016
66295-36-1*0
Methyleneamidogen C=[N]241.94238.29± 0.67kJ/mol28.03332 ±
0.00082
15845-29-1*0
(E)-Iminomethyl [CH]=N275.82272.21± 0.71kJ/mol28.03332 ±
0.00082
54980-10-8*0
Nitrilomethylium [C+]#N1776.91780.4± 1.3kJ/mol26.01689 ±
0.00080
12539-57-0*0
Cyanomethanide [CH2-]C#N114.17111.34± 0.77kJ/mol40.0446 ±
0.0016
21438-99-3*0
Methanol cation [CH3+]O856.81846.49± 0.32kJ/mol32.04131 ±
0.00090
12538-91-9*0
Methyloxonium CO.[H+]588.5574.3± 1.2kJ/mol33.04925 ±
0.00092
17836-08-7*0
Hydroxymethylene [CH]O219.3216.4± 1.1kJ/mol30.02598 ±
0.00087
19710-56-6*3
Aquacarbon [C].O442.7441.1± 1.3kJ/mol30.02598 ±
0.00087
81434-73-3*1
Carbonic acid OC(=O)O-596.89-607.00± 0.83kJ/mol62.0248 ±
0.0012
463-79-6*2
Carbonic acid OC(=O)O-561.67-570.51± 0.97kJ/mol62.0248 ±
0.0012
463-79-6*3
Hydrogen carbonate O[C](=O)[O-]-720.5-726.9± 1.4kJ/mol61.0174 ±
0.0012
71-52-3*0
n-Propylium CC[CH2+]856.95838.67± 0.86kJ/mol43.0871 ±
0.0024
19252-52-9*0
Allyl anion C=C[CH2-]134.12123.11± 0.24kJ/mol41.0723 ±
0.0024
1724-46-5*0
Cyclopropyl C1C[CH]1303.3290.7± 1.5kJ/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-]263.89260.31± 0.98kJ/mol39.0565 ±
0.0024
36147-87-2*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]657.4653.9± 1.5kJ/mol39.0559 ±
0.0024
84654-90-0*11
sec-Butyl CC[CH]C90.8366.07± 0.95kJ/mol57.1143 ±
0.0033
2348-55-2*0
Hypochloroperoxoous acid, hydroxy ester OOOCl49.142.2± 1.9kJ/mol84.4588 ±
0.0013
928652-99-7*1
Oxidanylium [OH+]1293.1881293.217± 0.035kJ/mol17.00679 ±
0.00031
12259-29-9*0
1,2-Butadiene CC=C=C175.79162.29± 0.50kJ/mol54.0904 ±
0.0032
590-19-2*0
Cyclohexane C1CCCCC1-83.56-123.13± 0.36kJ/mol84.1595 ±
0.0049
110-82-7*0
Trioxidanyl OO[O]25.3223.33± 0.13kJ/mol49.00614 ±
0.00090
12500-78-6*1
Oxirene C1=CO1387.8383.6± 1.4kJ/mol42.0367 ±
0.0016
157-18-6*11
Oxiranylidene C1[C]O1213.5209.3± 1.4kJ/mol42.0367 ±
0.0016
50983-85-2*2
Oxoethylidene [CH]C=O261.2257.7± 1.6kJ/mol42.0367 ±
0.0016
39920-84-8*12
Dioxirane C1OO19.411.74± 0.55kJ/mol46.0254 ±
0.0010
157-26-6*0
Hydroxyformyl anion [C-](=O)O-313.63-315.43± 0.60kJ/mol45.0180 ±
0.0010
78944-70-4*1
Ethoxyethene C=COCC-117.4-141.2± 1.5kJ/mol72.1057 ±
0.0033
109-92-2*2
Cyanic acid OC#N-12.31-15.03± 0.48kJ/mol43.02478 ±
0.00086
420-05-3*0
Isofulminic acid O[N+]#[C-]235.26233.56± 0.48kJ/mol43.02478 ±
0.00086
506-85-4*0
Acetic acid CC(=O)O-418.86-432.98± 0.43kJ/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-152.5-160.5± 1.5kJ/mol59.0440 ±
0.0017
16481-04-2*1
(Formyloxy)methyl O=CO[CH2]-151.9-160.0± 1.3kJ/mol59.0440 ±
0.0017
3122-12-1*1
Ethylene glycol OCCO-369.75-389.37± 0.40kJ/mol62.0678 ±
0.0018
107-21-1*0
Dioxoethyl C(=O)[C]=O-63.6-65.0± 1.3kJ/mol57.0281 ±
0.0017
702699-38-5*0
(Methylamino)methyl cation CN[CH2+]728.99710.37± 0.99kJ/mol44.0752 ±
0.0017
*31277-24-4*0
Iodine monobromide IBr49.71540.768± 0.067kJ/mol206.8085 ±
0.0010
7789-33-5*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)Cl92.1790.25± 0.88kJ/mol83.9240 ±
0.0020
3474-12-2*0
Chloromethyl [CH2]Cl118.36115.29± 0.87kJ/mol49.4793 ±
0.0012
6806-86-6*0
Methyl hypochlorite COCl-53.1-63.1± 1.4kJ/mol66.4866 ±
0.0013
593-78-2*0
1,2-Dichloroethane C(Cl)CCl-118.58-130.52± 0.54kJ/mol98.9586 ±
0.0024
107-06-2*0
Chlorofluoromethane C(F)Cl-256.1-263.3± 1.1kJ/mol68.4777 ±
0.0012
593-70-4*0
Difluoromethyliumyl [C+](F)F908.18908.60± 0.78kJ/mol50.00696 ±
0.00080
54250-40-7*0
Fluoromethyliumylidene [C+]F1122.901126.12± 0.46kJ/mol31.00855 ±
0.00080
33412-11-2*0
1,2-Difluoroacetylene FC#CF2.865.69± 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
Hydroxyde [OH-]-230.014± 0.029kJ/mol17.00789 ±
0.00031
14280-30-9*800
o-Benzyne anion C1=CC#CC=[CH-]1413.54404.43± 0.97kJ/mol76.0965 ±
0.0048
100569-88-8*0
Ozonide O=[O-]=O-58.48-60.84± 0.21kJ/mol47.99875 ±
0.00090
12596-80-4*0
Cycloheptene C1CCC=CCC128.15-9.08± 0.75kJ/mol96.1702 ±
0.0057
628-92-2*0
Cycloheptatriene C1C=CC=CC=C1207.03183.61± 0.96kJ/mol92.1384 ±
0.0056
544-25-2*0
Fluorobenzene cation c1ccc(cc1)[F+]788.89773.87± 0.89kJ/mol96.1018 ±
0.0048
34468-25-2*0
Nitrosobenzene c1ccc(cc1)N=O215.7198.7± 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
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
Trioxygen difluoride FOOOF112.2106.5± 1.1kJ/mol85.99501 ±
0.00090
16829-28-0*1
2-Cyanovinyl [CH]=CC#N447.8445.3± 1.3kJ/mol52.0547 ±
0.0024
189141-20-6*2
Diazenyl [N]=N252.17249.25± 0.47kJ/mol29.02142 ±
0.00016
36882-13-0*0
Iodide [I-]-56.826± 0.089kJ/mol126.905019 ±
0.000030
20461-54-5*800
Fluoride [F-]-334.50± 0.16kJ/mol18.99895178 ±
0.00000050
16984-48-8*800
Peroxynitric acid [N+](=O)([O-])OO-42.6-53.0± 1.3kJ/mol79.0123 ±
0.0012
26404-66-0*0
Nitrosyl chloride ClN=O54.45152.549± 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+]1150.6691144.286± 0.065kJ/mol16.04191 ±
0.00085
20741-88-2*0
Hydrogen difluoride F.[F]-198.5-198.4± 1.2kJ/mol39.004746 ±
0.000070
12528-21-1*1
Ethanium [CH3+][H][CH3]874.33858.09± 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-]363.3360.9± 1.3kJ/mol40.0440 ±
0.0016
70971-59-4*0
Dioxidenium O[O+]1110.871107.98± 0.11kJ/mol33.00619 ±
0.00060
12207-52-2*0
Methyloxoniumylidene C[O+]1062.721054.91± 0.75kJ/mol31.03337 ±
0.00088
58157-09-8*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]O217.26217.64± 0.69kJ/mol29.01804 ±
0.00086
71080-92-7*0
Chlorine difluoride [Cl](F)F-47.1-48.2± 1.4kJ/mol73.44951 ±
0.00090
24801-48-7*0
Chloryl hydride [H][Cl](=O)=O197.6191.2± 1.6kJ/mol68.4594 ±
0.0011
174365-32-3*0
1-Methylethylidene C[C]C316.2302.3± 2.0kJ/mol42.0797 ±
0.0024
40852-89-9*2
Propylidene CC[CH]349.4335.7± 1.4kJ/mol42.0797 ±
0.0024
6700-78-3*1
Allylium C=C[CH2+]964.58953.03± 0.45kJ/mol41.0713 ±
0.0024
1724-44-3*0
1-Propenyl CC=[CH]280.26269.44± 0.80kJ/mol41.0718 ±
0.0024
6067-68-1*1
Propargylium [CH2+]C#C1193.441190.62± 0.37kJ/mol39.0554 ±
0.0024
21540-27-2*0
Cycloprop-1-enyl C1C=[C]1527.51523.12± 0.67kJ/mol39.0559 ±
0.0024
19528-44-0*0
Iodine cation [I+]1115.5491115.149± 0.0062kJ/mol126.903921 ±
0.000030
22541-93-1*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
Bifluoride F.[F-]-481.8-480.6± 1.9kJ/mol39.005295 ±
0.000070
*18130-74-0*2
Cyclobutane C1CCC152.3427.80± 0.41kJ/mol56.1063 ±
0.0032
287-23-0*0
Cyclobutene C1CC=C1177.27160.23± 0.88kJ/mol54.0904 ±
0.0032
822-35-5*0
Cyclopentene C1CC=CC159.4335.16± 0.46kJ/mol68.1170 ±
0.0040
142-29-0*0
n-Heptane CCCCCCC-145.65-187.53± 0.48kJ/mol100.2019 ±
0.0057
142-82-5*0
n-Octane CCCCCCCC-161.41-208.25± 0.67kJ/mol114.2285 ±
0.0065
111-65-9*0
1-Hydroxyethylium C[CH+]O610.8596.4± 1.1kJ/mol45.0600 ±
0.0017
18682-96-7*2
Ethenol C=CO-108.28-119.07± 0.77kJ/mol44.0526 ±
0.0017
557-75-5*2
Vinyl alcohol cation C=C[OH+]778.9767.6± 1.3kJ/mol44.0520 ±
0.0017
57239-63-1*2
Oxiranyl C1[CH]O1172.5164.3± 1.4kJ/mol43.0446 ±
0.0016
31586-84-2*0
Oxiranylium C1[CH+]O1901.1893.2± 1.5kJ/mol43.0441 ±
0.0016
57789-76-1*2
C=O=C [C]=[O]=[C]653.0657.3± 1.6kJ/mol40.0208 ±
0.0016
*12071-23-7*1
C=O=C [C]=[O]=[C]721.9726.3± 1.6kJ/mol40.0208 ±
0.0016
*12071-23-7*2
Oxoethylidene [CH]C=O275.5272.7± 1.9kJ/mol42.0367 ±
0.0016
39920-84-8*2
Formic acid cation [CH+](=O)O721.88714.79± 0.26kJ/mol46.0248 ±
0.0010
50614-05-6*1
Formyloxidanyl C(=O)[O]-122.05-125.40± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*2
Oxygen atom [O]246.844249.229± 0.0021kJ/mol15.99940 ±
0.00030
17778-80-2*1
1-Propanol CCCO-231.42-255.26± 0.25kJ/mol60.0950 ±
0.0025
71-23-8*0
Fulminic acid C#[N+][O-]170.81169.35± 0.49kJ/mol43.02478 ±
0.00086
51060-05-0*0
(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
Hydrogen chloride Cl-165.757± 0.025kJ/mol36.46064 ±
0.00090
7647-01-0*828
Oxoniumyl ion [H][O+][H]978.466975.563± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*0
Dimethylamide C[N-]C122.2103.8± 1.7kJ/mol44.0763 ±
0.0017
34285-60-4*0
Dinitrogen pentoxide O=[N+]([O-])O[N+](=O)[O-]24.4314.85± 0.35kJ/mol108.0105 ±
0.0015
10102-03-1*0
Hydrogen fluoride F-321.10± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*820
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)Cl26.925.1± 1.3kJ/mol201.2849 ±
0.0048
7094-17-9*0
Bromide [Br-]-120.93± 0.15kJ/mol79.90455 ±
0.00100
24959-67-9*800
Iodomethane CI-12.18± 0.20kJ/mol141.93899 ±
0.00083
74-88-4*590
Difluoromethylene [C](F)F43.2844.00± 0.38kJ/mol50.00751 ±
0.00080
2154-59-8*1
Trioxidanylium OO[O+]1070.41064.1± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*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± 1.4kJ/mol66.00691 ±
0.00085
479587-30-9*2
Dibromophosgene C(Br)(Br)=O-97.98-113.92± 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=C1467.91458.99± 0.88kJ/mol76.0960 ±
0.0048
462-80-6*0
m-Benzyne c1[c]ccc[c]1526.8518.4± 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 C1CCCCCC1-72.78-118.28± 0.53kJ/mol98.1861 ±
0.0057
291-64-5*0
Phenoxy c1ccc(cc1)[O]71.0955.80± 0.88kJ/mol93.1033 ±
0.0048
2122-46-5*0
Benzoyl fluoride c1ccc(cc1)C(=O)F-288.1-304.5± 1.5kJ/mol124.1124 ±
0.0056
455-32-3*0
Azide [N]N=[N-]193.51190.00± 0.91kJ/mol42.02077 ±
0.00021
14343-69-2*0
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± 1.3kJ/mol51.0468 ±
0.0024
70277-81-5*0
Isocyanovinylidene [C]=C[N+]#[C-]697.0700.3± 1.4kJ/mol51.0468 ±
0.0024
737788-76-0*0
Isocyanoethene C=C[N+]#[C-]285.04278.54± 0.97kJ/mol53.0627 ±
0.0024
14668-82-7*1
1-Cyanoethylidene C[C]C#N437.6433.9± 1.5kJ/mol53.0627 ±
0.0024
498544-34-6*1
1H-Triazirin-1-yl [N]1N=[N]1585.9584.1± 2.0kJ/mol42.02022 ±
0.00021
912535-95-6*0
Isocyanomethylene [CH][N+]#[C-]582.3583.6± 1.7kJ/mol39.0361 ±
0.0016
78694-65-2*1
Dioxiranylidene [C]1OO1190.3191.1± 1.4kJ/mol44.00950 ±
0.00100
138832-57-2*0
Methylidyne [CH]592.820596.154± 0.099kJ/mol13.01864 ±
0.00080
3315-37-5*1
Triiodide I[I-]I-51.27± 0.80kJ/mol380.713959 ±
0.000090
14900-04-0*800
Hydrogen difluoride cation [F+]F[H]1174.31171.3± 1.5kJ/mol39.004198 ±
0.000070
*126950-54-7*0
Chlorine fluoride cation [Cl+]F1165.531165.71± 0.49kJ/mol54.45055 ±
0.00090
12432-44-9*0
Oxygen cation monohydrate [H]O[H][O+]1153.31147.8± 3.3kJ/mol34.01413 ±
0.00062
*31748-17-1*0
(E)-Diazene cation [H]/N=[N+]/[H]1132.471125.53± 0.66kJ/mol30.02881 ±
0.00020
59952-06-6*0
Methylammonium C[NH3+]628.4609.5± 1.4kJ/mol32.06453 ±
0.00091
17000-00-9*0
Aminomethylene [CH][NH2]246.0238.2± 1.5kJ/mol29.04126 ±
0.00083
35430-17-2*0
Methyleneamidogen anion C=[N-]192.71188.96± 0.96kJ/mol28.03387 ±
0.00082
28892-56-0*0
(Z)-Iminomethyl [CH]=N294.50291.01± 0.91kJ/mol28.03332 ±
0.00082
54980-11-9*0
Aminomethylidyne [C]N371.9368.3± 1.1kJ/mol28.03332 ±
0.00082
84654-89-7*0
Fluorohydrochlorine cation FCl[H+]975.3972.3± 2.0kJ/mol55.45849 ±
0.00090
70110-64-4*0
Oxywater [OH2][O]64.858.3± 1.3kJ/mol34.01468 ±
0.00062
171363-09-0*0
Oxygen anion monohydrate [H]O[H][O-]-239.0-244.3± 3.0kJ/mol34.01523 ±
0.00062
31748-17-1*0
(Z)-Diazene [H]/N=N\[H]228.81221.68± 0.64kJ/mol30.02936 ±
0.00020
15626-42-3*0
Deuterium atom [2H]219.804221.717± 0.000kJ/mol2.01410177800 ±
0.00000000040
16873-17-9*0
Methyleneoxonium [CH2].O152.45144.13± 0.49kJ/mol32.04186 ±
0.00090
177788-17-9*0
2-Hydrotrioxy cation [O][OH][O+]1298.21291.5± 1.5kJ/mol49.00559 ±
0.00090
*74241-49-9*0
Hydroxymethylene anion [CH-]O147.1144.1± 1.6kJ/mol30.02653 ±
0.00087
207914-87-2*1
Hydroxymethyliumylidene [C+]O986.02987.66± 0.83kJ/mol29.01749 ±
0.00086
60528-75-8*0
Isoformyl anion [C][O].[H-]55.758.4± 1.8kJ/mol29.01859 ±
0.00086
81747-63-9*1
Peroxyformic acid C(=O)OO-265.3-273.3± 1.6kJ/mol62.0248 ±
0.0012
107-32-4*2
Hydroxyoxomethoxy O[C](=O)[O]-358.8-365.0± 1.5kJ/mol61.0168 ±
0.0012
38330-85-7*0
Hydroperoxycarbonyl OO[C]=O-72.9-76.8± 1.7kJ/mol61.0168 ±
0.0012
153751-35-0*0
Propan-1-yl-3-ylidene [CH2]C[CH]554.3545.6± 1.4kJ/mol41.0718 ±
0.0024
*50457-59-5*2
Cycloprop-2-enyl C1=C[CH]1490.23485.68± 0.64kJ/mol39.0559 ±
0.0024
28933-84-8*0
Cyclopropenylidene C1=C=C1497.05496.09± 0.46kJ/mol38.0480 ±
0.0024
16165-40-5*0
2-Propynylidyne anion C#C[C-]540.00544.78± 0.84kJ/mol37.0406 ±
0.0024
82893-67-2*0
Cyclopropynyl [CH]1C#C1710.9715.0± 1.1kJ/mol37.0400 ±
0.0024
119178-99-3*0
2-Hydrotrioxy anion [O][OH][O-]27.521.8± 1.4kJ/mol49.00669 ±
0.00090
*89965-38-8*0
t-Butylium C[C+](C)C733.86710.58± 0.98kJ/mol57.1137 ±
0.0033
14804-25-2*0
t-Butyl anion C[C-](C)C76.451.6± 1.5kJ/mol57.1148 ±
0.0033
65114-21-8*0
iso-Butyl CC(C)[CH2]97.1773.18± 0.76kJ/mol57.1143 ±
0.0033
4630-45-9*0
Bifluoride F.[F-]-68.0-67.6± 1.6kJ/mol39.005295 ±
0.000070
*18130-74-0*1
Methylcyclopropane CC1CC147.724.5± 1.3kJ/mol56.1063 ±
0.0032
594-11-6*0
Peroxychlorous acid O=ClOO96.290.2± 2.1kJ/mol84.4588 ±
0.0013
177778-92-6*1
Chlorine difluoride cation [Cl+](F)F998.9996.7± 1.7kJ/mol73.44896 ±
0.00090
32629-46-2*0
Hydroxyaminiumyl [N+]O1161.21158.3± 1.4kJ/mol31.01353 ±
0.00032
63559-88-6*0
Ethanol CCO-269.73-277.49± 0.23kJ/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
Vinyl alcohol cation C=C[OH+]787.03775.81± 0.90kJ/mol44.0520 ±
0.0017
57239-63-1*1
Vinoxy C=C[O]22.6215.78± 0.86kJ/mol43.0446 ±
0.0016
6912-06-7*0
Vinoxy cation [CH2+]C=O1020.11013.0± 1.5kJ/mol43.0441 ±
0.0016
*35731-40-9*1
Vinoxide [CH2-]C=O-153.38-160.43± 0.86kJ/mol43.0452 ±
0.0016
35731-40-9*0
Oxiranyl anion C1[CH-]O1121.1113.1± 1.6kJ/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
COC vdW [C]=O.[C]589.7598.5± 1.6kJ/mol40.0208 ±
0.0016
*12071-24-8*1
Oxirene C1=CO1389.9385.7± 1.4kJ/mol42.0367 ±
0.0016
157-18-6*12
Nitrosodioxaziridine O=NN1OO1413.6407.6± 1.8kJ/mol76.01168 ±
0.00091
132871-99-9*1
Hydroxyamidogen [NH]O123.5117.0± 1.7kJ/mol32.02202 ±
0.00034
13940-32-4*2
Hydroxyaminylium [NH+]O1019.61012.4± 2.5kJ/mol32.02147 ±
0.00034
66097-71-0*1
Formyloxoniumylidene C(=O)[O+]1017.41013.9± 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
Perchloric acid OCl(=O)(=O)=O13.21.8± 1.8kJ/mol100.4582 ±
0.0015
7601-90-3*0
2-Propanol CC(O)C-249.39-273.49± 0.36kJ/mol60.0950 ±
0.0025
67-63-0*0
Dinitrogen tetraoxide O=N(=O)N(=O)=O20.1510.86± 0.14kJ/mol92.0111 ±
0.0012
10544-72-6*0
Cyanate N#C[O-]-221.23-221.45± 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=NO1449.9450.7± 1.5kJ/mol42.01684 ±
0.00086
228850-18-8*0
Oxofluoronium O=[F+]1342.641342.60± 0.81kJ/mol34.99725 ±
0.00030
12763-67-6*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-203.4-218.6± 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]696.3671.2± 1.4kJ/mol58.1018 ±
0.0025
28149-27-1*0
Trichloromethide [C-](Cl)(Cl)Cl-124.9-124.3± 2.0kJ/mol118.3693 ±
0.0028
14478-07-0*0
Aquachlorine cation [Cl+]O([H])[H]821.8815.0± 1.7kJ/mol53.46743 ±
0.00096
142599-65-3*0
Hydrogen fluoride F-321.13± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*821
1,1,2,2-Tetrachloroethane C(Cl)(Cl)C(Cl)Cl-146.9-156.3± 1.5kJ/mol167.8481 ±
0.0039
79-34-5*0
1,1,2,2-Tetrachloroethane C(Cl)(Cl)C(Cl)Cl-173.1-202.0± 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-49.3± 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
Trichloroethene C(Cl)=C(Cl)Cl-11.4-14.7± 1.5kJ/mol131.3874 ±
0.0031
79-01-6*0
Bromodichloromethane C(Cl)(Cl)Br-37.5-49.3± 1.2kJ/mol163.8280 ±
0.0022
75-27-4*0
Difluorodibromomethane C(F)(F)(Br)Br-364.3-382.3± 1.3kJ/mol209.8155 ±
0.0022
75-61-6*0
Dichlorodibromomethane C(Cl)(Cl)(Br)Br20.84.9± 1.4kJ/mol242.7241 ±
0.0028
594-18-3*0
Difluorobromomethane C(F)(F)Br-410.76-423.95± 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-434.39-447.81± 0.82kJ/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
Chlorine chlorite ClO[Cl]=O168.6166.2± 1.3kJ/mol102.9042 ±
0.0019
105206-44-8*3
Dioxyamidogen [NH-][O+]=O240.4233.8± 1.8kJ/mol47.01348 ±
0.00061
71843-95-3*2
Phenylium c1cccc[c+]11250.61237.6± 1.6kJ/mol77.1034 ±
0.0048
17333-73-2*1
Chlorobenzene cation c1ccc(cc1)[Cl+]942.47928.54± 0.61kJ/mol112.5561 ±
0.0049
55450-32-3*0
Chlorobenzene c1ccc(cc1)Cl11.22± 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]cccc1327.1316.4± 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
Nitrobenzene c1ccc(cc1)[N+](=O)[O-]81.461.4± 1.4kJ/mol123.1094 ±
0.0049
98-95-3*0
Methyl nitrite CON=O-55.65-66.32± 0.46kJ/mol61.0401 ±
0.0010
624-91-9*0
1,3-Butadien-2-ol C=C(O)C=C-53.8-70.7± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*11
Formaldonitrone [CH2]N[O]78.667.3± 1.5kJ/mol45.04066 ±
0.00088
67353-84-8*0
Trioxidaniumyl O[O+]O925.4916.2± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*2
2-Cyclopropen-1-imine C1=CC1=N401.9394.1± 1.4kJ/mol53.0627 ±
0.0024
31589-17-0*0
Peroxynitrous acid OON=O-0.19-7.24± 0.53kJ/mol63.01288 ±
0.00091
14691-52-2*2
1-Isocyanovinyl C=[C][N+]#[C-]519.4517.6± 1.5kJ/mol52.0547 ±
0.0024
321850-14-0*0
Dihydrogen fluoride anion F.[H-]133.2131.9± 1.6kJ/mol21.01483 ±
0.00014
117339-92-1*1
Fluorochlorate [Cl-]F-256.03-255.42± 0.81kJ/mol54.45165 ±
0.00090
12272-56-9*0
Peroxyimidogen [N]O[O]405.4403.4± 1.9kJ/mol46.00554 ±
0.00060
*60488-31-5*0
Bromo hypobromite BrOBr120.3103.8± 1.2kJ/mol175.8074 ±
0.0020
21308-80-5*0
Hydrogen fluoride F-321.12± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*904
Peroxychlorite O=ClO[O-]-34.3-34.3± 2.0kJ/mol83.4514 ±
0.0013
852472-63-0*0
Iminomethyl anion [CH-]=N237.3233.5± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*1
Nitronium O=[N+]=O961.78958.22± 0.20kJ/mol46.00499 ±
0.00060
14522-82-8*0
1-Chloro ozone ClOO[O]226.3223.1± 2.3kJ/mol83.4509 ±
0.0013
141801-66-3*101
Trihydrogen dioxide anion [OH][H][OH-]-487.5-495.8± 1.1kJ/mol35.02317 ±
0.00064
12501-19-8*0
Cyanogen iodide anion IC#[N-]86.588.9± 8.1kJ/mol152.92246 ±
0.00080
1356929-44-6*0
Methanol CO-235.28-238.62± 0.16kJ/mol32.04186 ±
0.00090
67-56-1*500
Oxadiazirene N1=NO1351.7349.9± 1.7kJ/mol44.01288 ±
0.00033
227934-45-4*0
Formaldehyde cation C=[O+]944.866941.245± 0.098kJ/mol30.02543 ±
0.00087
54288-05-0*0
Isoformyl anion [C][O].[H-]267.4268.0± 1.6kJ/mol29.01859 ±
0.00086
81747-63-9*2
Chlorohydrofluorine cation ClF[H+]1000.8998.1± 2.1kJ/mol55.45849 ±
0.00090
70110-63-3*0
NON [N]O[N]545.5542.6± 1.7kJ/mol44.01288 ±
0.00033
227934-46-5*0
Trifluoromethide [C-](F)(F)F-637.6-639.4± 1.8kJ/mol69.00646 ±
0.00080
54128-17-5*0
Dioxymethylidyne [C]O[O]299.8301.1± 1.7kJ/mol44.00950 ±
0.00100
791121-04-5*0
Diiodide I[I-]-178.13-180.72± 0.48kJ/mol253.809489 ±
0.000060
12190-71-5*0
Diazenide N#N.[H-]175.7176.7± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*100
1-Propynyl CC#[C]527.83525.66± 0.98kJ/mol39.0559 ±
0.0024
89342-91-6*0
Cycloprop-2-enylium C1=C[CH+]11080.41075.3± 1.2kJ/mol39.0554 ±
0.0024
26810-74-2*0
2-Propen-1-yl-3-ylidene [CH2]C=[C]556.7554.4± 1.3kJ/mol39.0559 ±
0.0024
202744-74-9*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]597.6599.4± 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
Iodine [I]107.157106.757± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*1
n-Butylium CCC[CH2+]827.4803.1± 1.2kJ/mol57.1137 ±
0.0033
25453-90-1*0
Carbide [C]=[C-]504.69511.27± 0.39kJ/mol24.0219 ±
0.0016
12595-78-7*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-134.66-173.92± 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+]CO1019.01006.2± 1.5kJ/mol45.0600 ±
0.0017
38607-31-7*3
Ethyloxoniumylidene CC[O+]988.7975.0± 1.5kJ/mol45.0600 ±
0.0017
54387-07-4*0
Acetaldehyde cation CC=[O+]831.87821.89± 0.26kJ/mol44.0520 ±
0.0017
36505-03-0*0
2-Cyclopropyn-1-ylidene C1=C=C=1898.9905.8± 1.6kJ/mol36.0321 ±
0.0024
102508-15-6*1
Oxiranylium C1[CH+]O11233.41226.4± 1.7kJ/mol43.0441 ±
0.0016
57789-76-1*1
2-Cyclopropyn-1-ylium-1-yl [C+]1=C=C=11944.71952.6± 1.9kJ/mol36.0316 ±
0.0024
154702-35-9*0
Oxiranyl anion C1[CH-]O1140.8134.8± 1.6kJ/mol43.0452 ±
0.0016
72722-59-9*1
Ketene C=C=O-45.35-48.47± 0.12kJ/mol42.0367 ±
0.0016
463-51-4*2
Ketenyl anion [CH-]=C=O-48.47-47.55± 0.84kJ/mol41.0293 ±
0.0016
64066-01-9*0
Dicarbon monoxide anion [C-]=C=O154.19157.83± 0.98kJ/mol40.0213 ±
0.0016
87191-88-6*0
Dicarbon monoxide [C]=C=O440.22444.56± 0.98kJ/mol40.0208 ±
0.0016
12071-23-7*2
COC vdW [C]=O.[C]726.3734.6± 1.7kJ/mol40.0208 ±
0.0016
*12071-24-8*2
C=O-C cation [C]=[O+][C]1585.81592.9± 2.7kJ/mol40.0203 ±
0.0016
83483-98-1*1
C=O=C anion [C-]=[O+]=[C-]550.3554.1± 1.7kJ/mol40.0213 ±
0.0016
*87191-88-6*0
Oxirene cation C1=C[O+]11106.31102.6± 1.9kJ/mol42.0361 ±
0.0016
94664-69-4*0
Ethynol C#CO400.1397.7± 2.0kJ/mol42.0367 ±
0.0016
32038-79-2*11
Oxoethylidene [CH]C=O265.9262.7± 1.9kJ/mol42.0367 ±
0.0016
39920-84-8*11
Hydroperoxymethyl [CH2]OO72.965.6± 1.4kJ/mol47.0333 ±
0.0010
74087-87-9*0
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
Triiodide I[I-]I-254.3-257.5± 3.4kJ/mol380.713959 ±
0.000090
14900-04-0*0
Isocyanic acid cation [NH+]=C=O1002.941000.27± 0.50kJ/mol43.02423 ±
0.00086
444010-28-0*0
Fulminic acid cation C#[N+][O]1215.71212.9± 1.3kJ/mol43.02423 ±
0.00086
114766-65-3*0
Acetic acid CC(=O)O-484.92± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*840
Acetyl chloride CC(=O)Cl-272.16± 0.33kJ/mol78.4973 ±
0.0019
75-36-5*500
Methyl formate COC=O-388.48± 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
Fluoronium [H][F+][H]774.11771.17± 0.88kJ/mol21.01373 ±
0.00014
12206-67-6*0
2-Methoxy-2-oxoethyl [CH2]C(=O)OC-173.3-188.5± 1.8kJ/mol73.0706 ±
0.0025
54668-31-4*2
(Acetyloxy)methyl CC(=O)O[CH2]-174.4-187.4± 1.7kJ/mol73.0706 ±
0.0025
2887-49-2*2
Hydroxyimidogen [N]O218.00215.12± 0.89kJ/mol31.01408 ±
0.00032
35337-59-8*0
Hydroxyoxoethenyl O[C]=C=O24.322.6± 1.9kJ/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
Fluoronium [H][F+][H]1490.11491.5± 1.9kJ/mol21.01373 ±
0.00014
12206-67-6*1
Nitrous acid N(=O)O-71.39-77.75± 0.26kJ/mol47.01348 ±
0.00061
7782-77-6*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
Dibromide Br[Br-]-199.2-213.3± 2.0kJ/mol159.8085 ±
0.0020
12595-70-9*0
Tetrachloromethane C(Cl)(Cl)(Cl)Cl-108.66-128.07± 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
Hydrogen fluoride F-321.06± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*902
Dichloromethylium [CH+](Cl)Cl894.7891.5± 1.2kJ/mol83.9235 ±
0.0020
56932-33-3*0
Dichloromethide [CH-](Cl)Cl-40.9-42.7± 2.0kJ/mol83.9246 ±
0.0020
32180-91-9*0
Chloromethylium [CH2+]Cl962.3958.4± 1.2kJ/mol49.4787 ±
0.0012
59000-00-9*0
Chloromethylene [CH]Cl346.14346.44± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*1
1,2-Dichloroethane C(Cl)CCl-165.73± 0.56kJ/mol98.9586 ±
0.0024
107-06-2*500
1,1-Dichloroethane CC(Cl)Cl-163.88± 0.48kJ/mol98.9586 ±
0.0024
75-34-3*500
Hydrogen difluoride F.[F]-187.4-187.1± 1.6kJ/mol39.004746 ±
0.000070
12528-21-1*2
Pentachloroethane C(C(Cl)(Cl)Cl)(Cl)Cl-151.3-157.2± 1.9kJ/mol202.2928 ±
0.0048
76-01-7*0
Chlorosyl chloride ClCl[O]134.5133.2± 1.4kJ/mol86.9048 ±
0.0018
86825-56-1*0
Chloroform C(Cl)(Cl)Cl-133.59± 0.51kJ/mol119.3767 ±
0.0028
67-66-3*590
Chlorodibromomethane C(Cl)(Br)Br18.4-0.4± 3.3kJ/mol208.2793 ±
0.0023
124-48-1*0
Tribromofluoromethane C(Br)(Br)(Br)F-105.9-129.9± 1.5kJ/mol270.7211 ±
0.0031
353-54-8*0
Tribromochloromethane C(Br)(Br)(Br)Cl77.354.4± 1.5kJ/mol287.1754 ±
0.0032
594-15-0*0
Azidonitrene [N]=NN=[N]692.1687.5± 1.4kJ/mol56.02696 ±
0.00028
147363-92-6*2
Bromochloromethane C(Cl)Br-28.4-42.4± 1.3kJ/mol129.3833 ±
0.0016
74-97-5*0
Fluoromethylene [CH]F148.38148.66± 0.43kJ/mol32.01704 ±
0.00080
13453-52-6*0
Hydrogen fluoride F-321.16± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*822
Ethyl iodide CCI8.70-7.18± 0.49kJ/mol155.9656 ±
0.0016
75-03-6*0
1,2-Dibromoacetylene BrC#CBr332.4321.5± 2.3kJ/mol183.8294 ±
0.0026
624-61-3*0
Ethylene cation C=[CH2+]1075.181067.97± 0.12kJ/mol28.0526 ±
0.0016
34470-02-5*0
Fluoro(fluorooxy)methylene F[C]OF-97.5-95.7± 1.6kJ/mol66.00691 ±
0.00085
479587-30-9*101
Oxochloronium [Cl+]=O1150.861150.69± 0.66kJ/mol51.45155 ±
0.00095
12301-79-0*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
Azanylium [NH2+]1266.551264.48± 0.11kJ/mol16.02207 ±
0.00016
15194-15-7*0
Benzene cation c1ccc(cc1)[H+]992.50976.03± 0.23kJ/mol78.1113 ±
0.0048
34504-50-2*0
Hydroxydioxonitrate O[N](=O)[O-]-193.2-197.6± 2.4kJ/mol63.01343 ±
0.00091
58875-09-5*0
Dihydrogen fluoride anion [F-].[H][H]-257.0-260.1± 1.9kJ/mol21.01483 ±
0.00014
*117339-92-1*2
m-Chlorophenide c1(Cl)c[c-]ccc1172.1162.0± 1.6kJ/mol111.5492 ±
0.0049
77748-34-6*0
p-Chlorophenide c1(Cl)cc[c-]cc1179.1168.7± 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
Ammonia N-80.885± 0.053kJ/mol17.03056 ±
0.00022
7664-41-7*1000
2-Oxopropylium CC(=[O+])[CH2]784.4770.6± 1.7kJ/mol57.0707 ±
0.0024
54088-52-7*0
2,3-Butanedione CC(=O)C(=O)C-310.62-327.19± 0.66kJ/mol86.0892 ±
0.0033
431-03-8*0
1,2-Dibromoethane C(Br)CBr-11.7-38.6± 1.2kJ/mol187.8612 ±
0.0026
106-93-4*0
2-Butanone CCC(=O)C-216.95-238.41± 0.91kJ/mol72.1057 ±
0.0033
78-93-3*0
Chlorite O=[Cl-]=O-105.62-107.79± 0.35kJ/mol67.4520 ±
0.0011
14998-27-7*0
2-Propynal C#CC=O135.5133.3± 1.4kJ/mol54.0474 ±
0.0024
624-67-9*0
Dioxygen O=O94.41094.383± 0.000kJ/mol31.99880 ±
0.00060
7782-44-7*2
Ammonium nitrate [NH4+].O=[N+]([O-])[O-]-350.29-365.26± 0.18kJ/mol80.04344 ±
0.00095
6484-52-2*500
Chloride [Cl-]-166.991± 0.023kJ/mol35.45325 ±
0.00090
16887-00-6*800
Fluorosyl fluoride FF[O]192.6193.1± 2.3kJ/mol53.99621 ±
0.00030
86825-57-2*1
1-Isocyanoethylidene C[C][N+]#[C-]545.5540.7± 1.6kJ/mol53.0627 ±
0.0024
*498544-34-6*1
3-Imino-2-propen-1-ylidene [CH]C=C=N571.8566.8± 1.6kJ/mol53.0627 ±
0.0024
916765-05-4*21
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]634.4629.8± 1.6kJ/mol53.0627 ±
0.0024
123416-74-0*21
Azete C1=CN=C1469.5461.3± 1.5kJ/mol53.0627 ±
0.0024
287-24-1*0
2-Cyanovinylium [CH+]=CC#N1517.11515.0± 1.8kJ/mol52.0542 ±
0.0024
85398-67-0*21
2-Cyanovinyl anion [CH-]=CC#N263.7260.7± 1.8kJ/mol52.0553 ±
0.0024
*85398-67-0*2
2-Isocyanovinyl [CH]=C[N+]#[C-]543.1541.1± 1.7kJ/mol52.0547 ±
0.0024
225798-14-1*1
3-Oxo-1,2-propadienylidene [C]=C=C=O329.9335.9± 2.0kJ/mol52.0315 ±
0.0024
11127-17-6*0
Hydroxymethylene anion [CH-]O160.2157.5± 1.7kJ/mol30.02653 ±
0.00087
207914-87-2*2
Hydroxymethylene anion [CH-]O334.0334.8± 2.1kJ/mol30.02653 ±
0.00087
207914-87-2*3
Oxadiazirine anion [N-]1=NO195.195.5± 2.9kJ/mol44.01343 ±
0.00033
350586-31-1*0
Aquacarbon [C].O467.6465.5± 1.9kJ/mol30.02598 ±
0.00087
81434-73-3*102
Aquacarbon cation [C+].O1196.11193.0± 1.7kJ/mol30.02543 ±
0.00087
*81434-73-3*0
1-Hydrazinylium-1-yl [N+]N1143.41136.4± 1.4kJ/mol30.02881 ±
0.00020
63986-30-1*0
Carbonic acid OC(=O)O-602.75-612.06± 0.75kJ/mol62.0248 ±
0.0012
463-79-6*0
Peroxyformic acid C(=O)OO-265.2-273.1± 1.5kJ/mol62.0248 ±
0.0012
107-32-4*3
Hydrogen chloride Cl-165.556± 0.026kJ/mol36.46064 ±
0.00090
7647-01-0*825
1-Methylethylidene C[C]C326.9313.7± 1.6kJ/mol42.0797 ±
0.0024
40852-89-9*1
1-Chloro ozone anion ClOO[O-]-108.9-111.4± 2.2kJ/mol83.4514 ±
0.0013
224299-15-4*3
Trioxodinitrate anion O=N-[N](=O)[O-]-104.3-107.5± 1.9kJ/mol76.01223 ±
0.00091
194856-62-7*100
Fluorosyl fluoride anion FF[O-]-147.2-146.9± 3.0kJ/mol53.99675 ±
0.00030
*86825-57-2*2
Dihydrogen fluoride F.H-55.9-54.9± 1.6kJ/mol21.01428 ±
0.00014
12592-22-2*1
Diazenide N#N.[H-]347.5344.6± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*1
Propynylidene cation C#C[CH+]1410.81413.4± 1.3kJ/mol38.0474 ±
0.0024
75123-91-0*0
Propynylidene [CH]=C=[CH]597.4599.2± 1.1kJ/mol38.0480 ±
0.0024
67152-18-5*4
Propadienylidenide C=C=[C-]381.14382.04± 0.42kJ/mol38.0485 ±
0.0024
109292-49-1*0
1,2-Propadien-1-ylium-1-yl C=C=[C+]1561.71562.9± 1.4kJ/mol38.0474 ±
0.0024
110714-00-6*0
Ethynylene cation [C]=[C+]1965.161971.74± 0.50kJ/mol24.0209 ±
0.0016
12595-79-8*0
Tetraoxidanyl OOO[O]2.00.2± 3.0kJ/mol65.0055 ±
0.0012
69696-93-1*100
1-Chloro ozone anion ClOO[O-]-66.8-68.7± 2.1kJ/mol83.4514 ±
0.0013
224299-15-4*1
Hydrogen fluoride F-302.40± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*590
Methylimidogen C[N]323.2315.5± 1.7kJ/mol29.04126 ±
0.00083
27770-42-9*0
Hydroxylamine NO-15.5-26.0± 1.4kJ/mol33.02996 ±
0.00037
7803-49-8*2
Hydroxylamine cation N[OH+]857.6847.8± 1.6kJ/mol33.02941 ±
0.00037
62675-55-2*0
Hydrofluorate ion [FH-]-75.6-75.1± 1.8kJ/mol20.006892 ±
0.000070
37249-79-9*0
n-Pentane CCCCC-156.05-173.02± 0.31kJ/mol72.1488 ±
0.0041
109-66-0*500
iso-Pentane CCC(C)C-178.44± 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 C1CCCC1-105.15± 0.40kJ/mol70.1329 ±
0.0041
287-92-3*590
1,5-Hexadiene C=CCCC=C108.3883.79± 0.40kJ/mol82.1436 ±
0.0049
592-42-7*0
Chlorine difluoride anion [Cl-](F)F-504.9-505.8± 2.0kJ/mol73.45005 ±
0.00090
16892-05-0*0
Hydrogen fluoride F-320.88± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*815
Peroxyimidogen cation [N]O[O+]1409.61406.8± 1.9kJ/mol46.00499 ±
0.00060
*60488-32-6*0
Perchloryloxy O=Cl(=O)(=O)[O]248.6241.0± 1.8kJ/mol99.4503 ±
0.0015
12133-63-0*0
Ethoxy CC[O]1.30-12.13± 0.47kJ/mol45.0605 ±
0.0017
2154-50-9*0
Nitrogen hydride oxide [NH3+][O-]71.159.9± 1.5kJ/mol33.02996 ±
0.00037
38544-48-8*0
Aminooxy cation N[O+]946.05938.92± 0.80kJ/mol32.02147 ±
0.00034
*51375-41-8*0
Peroxyimidogen anion [N]O[O-]165.0162.7± 1.7kJ/mol46.00609 ±
0.00060
60488-31-5*0
Trioxidanyl OO[O]26.2923.02± 0.19kJ/mol49.00614 ±
0.00090
12500-78-6*2
Acetylene anion C#[CH-]356.8356.7± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*1
Fluorodioxidenium FO[O+]1221.91219.5± 2.0kJ/mol50.99665 ±
0.00060
139584-95-5*0
Iminomethyl anion [CH-]=N252.6248.9± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*2
Chlorine difluoride [Cl]FF22.523.9± 1.9kJ/mol73.44951 ±
0.00090
91483-78-2*0
Dicarbon monoxide cation [C+]=C=O1433.91439.0± 2.2kJ/mol40.0203 ±
0.0016
12287-08-0*0
Nitrosyl fluoride FN=O-85.81-88.18± 0.93kJ/mol49.00454 ±
0.00031
7789-25-5*0
C=O-C cation [C]=[O+][C]1816.81820.9± 2.0kJ/mol40.0203 ±
0.0016
83483-98-1*2
Hydrogen cyanide cation [CH+]#N1442.521442.05± 0.20kJ/mol27.02483 ±
0.00081
12601-62-6*0
Oxirene anion C1=C[O-]1288.3285.3± 2.2kJ/mol42.0372 ±
0.0016
*157-18-6*0
Dihydrooxooxygen cation [OH2][O+]994.8988.1± 1.6kJ/mol34.01413 ±
0.00062
177329-59-8*0
Oxoethylidene [CH]C=O261.2258.4± 1.6kJ/mol42.0367 ±
0.0016
39920-84-8*1
Perchlorate O=Cl(=O)(=O)[O-]-263.2-272.1± 2.2kJ/mol99.4508 ±
0.0015
14797-73-0*0
Formic acid anion [CH-](=O)O-241.2-247.0± 1.9kJ/mol46.0259 ±
0.0010
19066-82-1*2
Fluorodioxidanide [F-]O[O]-256.8-256.1± 1.9kJ/mol50.99775 ±
0.00060
23553-17-5*0
Dioxirane cation C1[O+]O11050.81043.2± 2.0kJ/mol46.0248 ±
0.0010
232262-10-1*0
Dioxymethyl cation C=[O+][O]1075.01068.6± 1.8kJ/mol46.0248 ±
0.0010
232262-11-2*0
Dioxofluorine [O]F[O]524.0523.2± 1.1kJ/mol50.99720 ±
0.00060
175861-93-5*0
1,3-Butadiyne-1,4-diyl [C]#CC#[C]1052.461062.44± 0.68kJ/mol48.0428 ±
0.0032
78015-07-3*0
Hydroxyaminylium [NH+]O1048.61041.4± 2.6kJ/mol32.02147 ±
0.00034
66097-71-0*2
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
Hydroxyamidogen anion [NH-]O90.884.9± 2.9kJ/mol32.02257 ±
0.00034
*66097-71-0*0
Cyanato cation N#C[O+]1261.451261.95± 0.58kJ/mol42.01629 ±
0.00086
17247-99-3*0
Nitrosomethyliumylidene [C+]N=O1509.61510.7± 1.7kJ/mol42.01629 ±
0.00086
67197-19-7*0
Fulminate [C-]#[N+][O-]59.459.6± 1.8kJ/mol42.01739 ±
0.00086
28269-67-2*0
Acetic acid CC(=O)O-484.10-483.68± 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
Deuterium atom cation [2H+]1532.2101534.123± 0.000kJ/mol2.01355319809 ±
0.00000000040
14464-47-2*0
(E)-Diazene anion [H]/N=[N-]/[H]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
*59952-06-6*0
Glyoxal O=CC=O-189.28-194.73± 0.75kJ/mol58.0361 ±
0.0017
107-22-2*2
Glyoxal O=CC=O-207.73-213.29± 0.61kJ/mol58.0361 ±
0.0017
107-22-2*0
Ethynediol OC#CO-18.2-21.9± 1.9kJ/mol58.0361 ±
0.0017
16005-17-7*0
Nitrosyl nitrate O=N(O1)ON1=O70.662.3± 1.7kJ/mol92.0111 ±
0.0012
*15969-55-8*0
Hydrogen fluoride F-321.03± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*901
Azidonitrene [N]=NN=[N]660.8657.6± 1.6kJ/mol56.02696 ±
0.00028
147363-92-6*1
Dimethylaminylium C[N+]C1040.11024.7± 1.8kJ/mol44.0752 ±
0.0017
49784-85-2*0
Nirous oxide cation N#[N+]=O1329.671326.78± 0.12kJ/mol44.01233 ±
0.00033
12269-46-4*0
Diisocyanogen [C-]#[N+][N+]#[C-]610.3612.6± 1.8kJ/mol52.0349 ±
0.0016
78800-21-2*0
Dichloromethylene [C](Cl)Cl313.63314.83± 0.90kJ/mol82.9161 ±
0.0020
1605-72-7*1
Chloromethyliumyl [CH+]Cl1207.41207.6± 2.0kJ/mol48.4708 ±
0.0012
89877-51-0*0
Chloromethylene anion [CH-]Cl203.44204.25± 0.94kJ/mol48.4719 ±
0.0012
75466-08-9*0
Chlorohydroxymethyl [CH](Cl)O-46.2-51.8± 2.0kJ/mol65.4787 ±
0.0012
147139-06-8*2
Dihydrogen cation [H][H+]1488.3641488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*0
Trioxidaniumyl O[O+]O935.2926.1± 1.6kJ/mol50.01353 ±
0.00091
161321-37-5*3
1,1,2-Trichloroethane C(Cl)C(Cl)Cl-188.6± 1.4kJ/mol133.4033 ±
0.0031
79-00-5*500
1,1,1,2-Tetrachloroethane C(Cl)C(Cl)(Cl)Cl-193.5± 1.1kJ/mol167.8481 ±
0.0039
630-20-6*500
Ethane cation C[CH3+]1043.181029.17± 0.60kJ/mol30.0685 ±
0.0017
34488-65-8*0
Hexachloroethane C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl-216.5± 2.8kJ/mol236.7376 ±
0.0056
67-72-1*500
Nitrous acid N(=O)O-73.008-78.665± 0.078kJ/mol47.01348 ±
0.00061
7782-77-6*0
3-Chloro-3-methyl-3H-diazirine CC1(N=N1)Cl251.4239.5± 2.7kJ/mol90.5114 ±
0.0019
4222-21-3*0
trans-1,2-Dichloroethene C(\Cl)=C/Cl5.29-0.13± 0.54kJ/mol96.9427 ±
0.0024
156-60-5*0
Hydrogen fluoride F-321.18± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*823
Fluorochlorobromomethane C(F)(Cl)Br-218.3-230.9± 4.9kJ/mol147.3737 ±
0.0016
593-98-6*0
Bifluoride F[H][F-]-705.21-709.06± 0.36kJ/mol39.005295 ±
0.000070
18130-74-0*0
Fluoromethyliumyl [CH+]F1116.61116.9± 1.7kJ/mol32.01649 ±
0.00080
89877-52-1*0
Fluoromethylene anion [CH-]F95.9296.46± 0.61kJ/mol32.01759 ±
0.00080
71267-42-0*0
Polytetrafluoroethylene FC(C(F)(F)[*:1])(F)[*:2]-829.65± 0.58kJ/mol100.0150 ±
0.0016
9002-84-0*591
Trioxidanylium OO[O+]1085.21078.9± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*2
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± 1.6kJ/mol43.0204 ±
0.0016
85905-56-2*0
(Z)-Diazene cation [H]/N=[N+]\[H]1157.01150.1± 1.3kJ/mol30.02881 ±
0.00020
86631-37-0*0
Ethylene anion C=[CH2-]232.0224.4± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*1
Formyl fluoride cation F[CH+]=O816.6813.3± 1.3kJ/mol48.01589 ±
0.00086
99766-68-4*0
Formyl fluoride F[C-]=O-405.1-403.7± 1.6kJ/mol47.00905 ±
0.00085
62227-71-8*0
Fluoroisoformyl cation [C+]OF1347.41349.5± 1.9kJ/mol47.00795 ±
0.00085
*1871-25-6*0
Hydrogen chloride Cl-166.682± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*841
Trifluoride ion FF[F-]-348.8-349.7± 2.6kJ/mol56.9957582 ±
0.0000015
25730-99-8*0
Hydrogen bromide Br-120.44± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*834
o-Benzyne cation C1=CC#CC=[CH+]11393.81385.8± 1.7kJ/mol76.0954 ±
0.0048
70220-84-7*0
Hydrogen peroxide cation O[OH+]930.98924.12± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*2
m-Benzyne cation c1[c]ccc[c+]11365.51356.9± 1.9kJ/mol76.0954 ±
0.0048
121058-08-0*0
p-Benzyne c1c[c]cc[c]1603.4594.0± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*1
Aminyliumyl [NH+]1659.031659.95± 0.24kJ/mol15.014131 ±
0.000099
19067-62-0*0
Benzylium c1ccc(cc1)[CH2+]929.35909.85± 0.61kJ/mol91.1299 ±
0.0056
6711-19-9*0
1,3-Cycloheptadiene C1CC=CC=CC1123.2794.16± 0.78kJ/mol94.1543 ±
0.0056
4054-38-0*1
Tropylium [CH+]1C=CC=CC=C1897.9878.2± 1.1kJ/mol91.1299 ±
0.0056
26811-28-9*0
Nitric acid O[N+](=O)[O-]-206.32± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*839
Hydrogen bromide Br-120.74± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*844
Acetone enol C=C(O)C-147.1-164.4± 1.3kJ/mol58.0791 ±
0.0025
29456-04-0*2
Methyleneoxonium cation [CH2+].O827.7818.3± 1.7kJ/mol32.04131 ±
0.00090
*177788-17-9*0
cis-1,2-Dibromoethene C(\Br)=C\Br121.0100.4± 2.1kJ/mol185.8453 ±
0.0026
590-11-4*0
1,1-Dibromoethane CC(Br)Br-5.4-32.4± 1.8kJ/mol187.8612 ±
0.0026
557-91-5*0
Krypton hydride cation [Kr+][H]1106.331104.55± 0.69kJ/mol84.8074 ±
0.1000
37276-90-7*0
Hydroxymethanide [CH2-]O9.42.8± 1.7kJ/mol31.03447 ±
0.00088
55830-71-2*0
Dioxaziridinyl anion [N-]1OO1295.9293.4± 1.6kJ/mol46.00609 ±
0.00060
66252-31-1*0
Formaldehyde C=O-105.376-109.215± 0.097kJ/mol30.02598 ±
0.00087
50-00-0*2
Fluoroniumyl ion [FH+]1275.5611275.793± 0.050kJ/mol20.005795 ±
0.000070
12381-92-9*0
Formaldoxime C=NO50.840.0± 1.8kJ/mol45.04066 ±
0.00088
75-17-2*2
Oxaziridine C1NO1115.8104.1± 2.1kJ/mol45.04066 ±
0.00088
6827-26-5*0
Nitric acid O[N+](=O)[O-]-179.02-173.29± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*500
Dihydrogen fluoride anion F.[H-]-61.9-60.5± 3.2kJ/mol21.01483 ±
0.00014
117339-92-1*2
Xenon cation [Xe+]1170.3541170.354± 0.0062kJ/mol131.2895 ±
0.0200
24203-25-6*0
Dioxaziridinyl cation [N+]1OO11365.91363.3± 1.7kJ/mol46.00499 ±
0.00060
*66252-29-7*0
2-Methylene-2H-azirine C1=NC1=C404.2396.9± 1.7kJ/mol53.0627 ±
0.0024
110027-86-6*0
Chlorine oxide peroxide O=ClO[O]226.5227.4± 2.5kJ/mol83.4509 ±
0.0013
141801-67-4*100
2-Cyanovinylium [CH+]=CC#N1517.31515.2± 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
Hydroxymethylene cation [CH+]O986.4982.8± 1.6kJ/mol30.02543 ±
0.00087
135395-06-1*2
Hydroxymethylene cation [CH+]O1482.11479.4± 1.9kJ/mol30.02543 ±
0.00087
135395-06-1*3
2-Isocyanovinyl [CH]=C[N+]#[C-]544.5542.6± 1.7kJ/mol52.0547 ±
0.0024
225798-14-1*2
Cyanomethylene [CH]C#N529.5530.5± 1.4kJ/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
Dioxodiazoxane O=NON=O109.3105.2± 1.8kJ/mol76.01168 ±
0.00091
122413-35-8*2
2-Chloro ozone anion ClO([O])[O-]-103.4-105.6± 3.2kJ/mol83.4514 ±
0.0013
*141801-67-4*0
Cyclopentene C1CC=CC14.40± 0.42kJ/mol68.1170 ±
0.0040
142-29-0*590
Fluorosyl fluoride anion FF[O-]-56.6-55.7± 2.4kJ/mol53.99675 ±
0.00030
*86825-57-2*1
n-Hexane CCCCCC-179.98-198.64± 0.34kJ/mol86.1754 ±
0.0049
110-54-3*500
Methylimidogen anion C[N-]321.3313.6± 1.8kJ/mol29.04181 ±
0.00083
82539-34-2*0
1-Hydroxyethanide C[CH-]O-20.3-33.7± 2.2kJ/mol45.0610 ±
0.0017
88032-18-2*0
1,2-Propadien-1-yl-3-ylidene anion [C]=C=[C-]622.0629.4± 1.3kJ/mol36.0326 ±
0.0024
109292-47-9*0
Methyleneaminylium C=[N+]1456.61453.0± 2.2kJ/mol28.03277 ±
0.00082
53518-13-1*1
Acetaldehyde anion CC=[O-]-62.2-72.5± 2.2kJ/mol44.0531 ±
0.0017
60427-04-5*0
Peroxyhypochlorite ClO[O-]-249.22-248.20± 0.37kJ/mol67.4520 ±
0.0011
224299-14-3*0
2-Cyclopropyn-1-ylidene C1=C=C=1993.21000.1± 2.5kJ/mol36.0321 ±
0.0024
102508-15-6*2
Ozone cation O=[O+]=O1352.8701350.531± 0.041kJ/mol47.99765 ±
0.00090
12596-82-6*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
2-Cyclopropyn-1-yl anion [C-]1=C=C=1664.8672.1± 1.6kJ/mol36.0326 ±
0.0024
500574-36-7*0
iso-Proplylide C[CH-]C128.6110.2± 1.6kJ/mol43.0882 ±
0.0024
25012-80-0*0
Oxoethenylium [CH+]=C=O1139.71142.4± 2.1kJ/mol41.0282 ±
0.0016
92056-63-8*0
Hydrogen fluoride F-321.17± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*905
Aminooxy anion N[O-]47.540.5± 1.7kJ/mol32.02257 ±
0.00034
51375-41-8*0
Aminomethyliumylidene [C+]N1168.31165.1± 2.2kJ/mol28.03277 ±
0.00082
86784-42-1*0
Fluorine atom cation [F+]1758.3061760.604± 0.048kJ/mol18.99785462 ±
0.00000050
14701-13-4*0
Chlorine difluoride cation [Cl+]FF1346.31344.9± 2.1kJ/mol73.44896 ±
0.00090
86825-59-4*0
Bicyclo[1.1.0]buta-1,3-diene-2,4-diyl C12=[C]C2=[C]11047.471055.06± 0.73kJ/mol48.0428 ±
0.0032
12184-80-4*0
Oxiranylidene C1[C]O1456.2452.1± 2.2kJ/mol42.0367 ±
0.0016
50983-85-2*1
Oxiranylidene cation C1[C+]O11165.51161.9± 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
Methyl hydroperoxide cation C[O+]O833.5820.3± 2.2kJ/mol48.0407 ±
0.0010
112465-88-0*0
Methoxyoxoniumylidene CO[O+]1012.91004.6± 2.0kJ/mol47.0328 ±
0.0010
86475-50-5*0
Hydrogen difluoride cation [F+]F[H]1174.31171.3± 1.5kJ/mol39.004198 ±
0.000070
*126950-54-7*2
Hypobromous acid cation O[Br+]974.92964.30± 0.53kJ/mol96.9108 ±
0.0010
154804-02-1*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± 1.5kJ/mol46.0259 ±
0.0010
93207-29-5*0
Triiodine cation I[I+]I946.1941.0± 4.1kJ/mol380.712861 ±
0.000090
12596-32-6*0
Chlorine difluoride anion [Cl-]FF-319.0-319.1± 2.2kJ/mol73.45005 ±
0.00090
91419-41-9*0
H-CO2 vdW complex [H].O=C=O-178.3-177.5± 2.1kJ/mol45.0174 ±
0.0010
*2564-83-2*100
Hydrogen chloride Cl-166.712± 0.023kJ/mol36.46064 ±
0.00090
7647-01-0*951
2-Propanol CC(O)C-306.12-318.93± 0.36kJ/mol60.0950 ±
0.0025
67-63-0*500
1-Propanol CCCO-290.54-302.72± 0.24kJ/mol60.0950 ±
0.0025
71-23-8*500
Nitrate O=[N+]([O-])[O-]-206.64± 0.18kJ/mol62.00549 ±
0.00090
14797-55-8*800
Oxazirinyl cation [C+]1=NO11565.41566.1± 2.3kJ/mol42.01629 ±
0.00086
*228850-18-8*0
Oxazirinyl anion [C-]1=NO1448.0448.8± 2.4kJ/mol42.01739 ±
0.00086
28269-68-3*0
Cyclopropylide C1C[CH-]1264.7251.9± 1.8kJ/mol41.0723 ±
0.0024
1724-45-4*0
Peroxychloric acid O=Cl(=O)OO77.569.3± 2.6kJ/mol100.4582 ±
0.0015
177778-91-5*0
1-Methoxyethenol C=C(O)OC-284.8-304.1± 1.7kJ/mol74.0785 ±
0.0025
4453-91-2*1
Deuterium hydride cation [H][2H+]1490.4981490.587± 0.000kJ/mol3.021493 ±
0.000070
12181-16-7*0
Ethyl formate C(=O)OCC-426.0± 1.2kJ/mol74.0785 ±
0.0025
109-94-4*500
Nitrosyl nitrate O=NO[N+](=O)[O-]48.340.3± 1.8kJ/mol92.0111 ±
0.0012
15969-55-8*1
Hydrooxonitrate [NH-]=O78.5975.68± 0.99kJ/mol31.01463 ±
0.00032
66057-02-1*0
Diazenium N[NH+]968.59957.33± 0.77kJ/mol31.03675 ±
0.00025
37369-93-0*0
Hydrogen chloride Cl-166.636± 0.025kJ/mol36.46064 ±
0.00090
7647-01-0*840
Propionic acid CCC(=O)O-415.8-433.4± 1.4kJ/mol74.0785 ±
0.0025
79-09-4*2
Aminomethyl anion [CH2-]N209.4199.1± 2.1kJ/mol30.04975 ±
0.00085
74215-21-7*0
Hydroxyimidogen anion [N-]O229.9227.4± 2.3kJ/mol31.01463 ±
0.00032
*35337-59-8*0
Cyanogen cation N#C[C+]#N1598.221600.44± 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
Diazoethenylidene [N-]=[N+]=C=[C]658.6661.2± 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
Acetylene anion C#[CH-]380.1380.3± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*2
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
Isocyanomethylium [CH2+][N+]#[C-]1272.71270.5± 2.2kJ/mol40.0435 ±
0.0016
78269-43-9*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
Dinitrogen pentoxide O=[N+]([O-])O[N+](=O)[O-]-41.04± 0.42kJ/mol108.0105 ±
0.0015
10102-03-1*500
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
Trichloromethylium [C+](Cl)(Cl)Cl854.36852.84± 0.93kJ/mol118.3683 ±
0.0028
27130-34-3*0
Water O-285.832± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*589
Methylammoniumyl C[NH2+]865.76851.83± 0.30kJ/mol31.05659 ±
0.00088
34516-31-9*0
Dichloromethyliumyl [C+](Cl)Cl1121.61122.6± 1.8kJ/mol82.9156 ±
0.0020
55945-51-2*0
Bromine atom [Br]117.914111.852± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*1
Fluorosyl fluoride cation FF[O+]1413.01413.4± 3.5kJ/mol53.99566 ±
0.00030
*86825-50-5*1
Methylaminilium C[NH+]1134.91125.1± 2.1kJ/mol30.04865 ±
0.00085
49784-84-1*0
2-Propenylidyne anion C=C[C-]464.4460.7± 1.8kJ/mol39.0565 ±
0.0024
120126-89-8*0
Hydrogen chloride Cl-165.546± 0.027kJ/mol36.46064 ±
0.00090
7647-01-0*953
2-Propen-3-yliumylidene [CH]C=[CH+]1494.71491.7± 1.7kJ/mol39.0554 ±
0.0024
84654-86-4*0
2-Propenylidene anion [CH]C=[CH-]535.9532.6± 1.8kJ/mol39.0565 ±
0.0024
98705-30-7*0
Ethanium [CH3+][H][CH3]888.7870.3± 1.8kJ/mol31.0764 ±
0.0017
24669-33-8*2
Trioxidanylium OO[O+]1070.41064.2± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*0
Dibromine BrBr-2.16± 0.20kJ/mol159.8080 ±
0.0020
7726-95-6*800
Chloromethane cation C[Cl+]1014.661007.89± 0.19kJ/mol50.4867 ±
0.0012
12538-71-5*0
Hydroxyoxoammoniumyl O[N+]=O984.1977.7± 1.7kJ/mol47.01293 ±
0.00061
80371-48-8*0
Hydrogen bromide Br-120.67± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*952
Ethanium [CH3+][H][CH3]895.1877.3± 1.9kJ/mol31.0764 ±
0.0017
24669-33-8*3
Chlorosyl chloride cation ClCl[O+]1132.61130.8± 2.0kJ/mol86.9043 ±
0.0018
*86825-56-1*0
Cyanogen bromide anion BrC#[N-]57.854.2± 3.8kJ/mol105.9220 ±
0.0013
54092-05-6*0
Bromofluoromethane C(F)Br-197.4-211.9± 4.9kJ/mol112.9290 ±
0.0013
373-52-4*0
Oxobromonium Br[O+]1139.31131.6± 1.5kJ/mol95.9029 ±
0.0010
142315-39-7*0
Hydrogen fluoride F-321.06± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*903
Chlorosyl chloride anion ClCl[O-]-185.4-184.7± 2.3kJ/mol86.9053 ±
0.0018
*86825-55-0*0
Fluorodibromomethane C(F)(Br)Br-159.7-179.3± 5.0kJ/mol191.8250 ±
0.0022
1868-53-7*0
Difluorochlorobromomethane C(F)(F)(Cl)Br-428.9-439.9± 4.9kJ/mol165.3642 ±
0.0016
353-59-3*0
Dichlorofluorobromomethane C(Cl)(Cl)(F)Br-228.3-238.3± 4.9kJ/mol181.8185 ±
0.0022
353-58-2*0
Dibromofluorochloromethane C(Br)(Br)(F)Cl-169.9-186.8± 5.0kJ/mol226.2698 ±
0.0023
353-55-9*0
Chloroniumyl ion [ClH+]1137.7971137.731± 0.0051kJ/mol36.46009 ±
0.00090
12258-94-5*0
Krypton cation [Kr+]1350.7571350.756± 0.000kJ/mol83.7995 ±
0.1000
16915-28-9*0
Dioxygen O=O0.0000.000± 0.000kJ/mol31.99880 ±
0.00060
7782-44-7*1
Chloryl chloride ClCl([O])[O]126.1122.1± 1.7kJ/mol102.9042 ±
0.0019
117489-73-3*0
Hydrogen bromide Br-120.69± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*842
Methanimine cation C=[NH+]1056.11049.3± 1.8kJ/mol29.04071 ±
0.00083
65130-65-6*0
Trifluorine cation FF[F+]1529.51527.4± 2.3kJ/mol56.9946610 ±
0.0000015
64710-22-1*0
Ammonium radical [NH4]190.01179.42± 0.43kJ/mol18.03850 ±
0.00029
92075-50-8*0
1,2-Difluoroacetylene cation F[C+]#CF1081.71084.5± 1.3kJ/mol62.0177 ±
0.0016
268566-70-7*0
Hypofluorous acid anion O[F-]155.3154.7± 2.6kJ/mol36.00629 ±
0.00031
36505-07-4*2
Hydroperoxyimidogen OO[N]103.399.8± 2.4kJ/mol47.01348 ±
0.00061
877456-58-1*1
Difluorophosgene cation C(F)(F)=[O+]653.44650.68± 0.51kJ/mol66.00636 ±
0.00085
73256-56-1*0
Methylamine anion C[NH2-]84.169.2± 2.8kJ/mol31.05769 ±
0.00088
81096-79-9*0
Methanimine anion C=[NH-]224.4217.2± 2.2kJ/mol29.04181 ±
0.00083
127593-73-1*0
Propynylidene [CH]=C=[CH]543.41546.40± 0.64kJ/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
Nirous oxide anion [N-]=[N]=O99.296.7± 1.9kJ/mol44.01343 ±
0.00033
12274-12-3*0
Ethylene anion C=[CH2-]231.5225.5± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*2
Dibromophosgene C(Br)(Br)=O-144.40± 0.95kJ/mol187.8181 ±
0.0022
593-95-3*590
Hydrogen bromide Br-120.64± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*841
2-Chloroethanol ClCCO-314.95± 0.53kJ/mol80.5132 ±
0.0019
107-07-3*590
2-Bromoethanol BrCCO-274.82± 0.47kJ/mol124.9645 ±
0.0019
540-51-2*590
Hydrogen fluoride F-321.17± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*891
Methanol anion [CH3-]O-89.1-99.8± 2.8kJ/mol32.04241 ±
0.00090
68474-04-4*0
Phenylium c1cccc[c+]11148.391135.61± 0.85kJ/mol77.1034 ±
0.0048
17333-73-2*2
Nitric acid cation O[N+](=O)[O]1029.141020.07± 0.69kJ/mol63.01233 ±
0.00091
272109-63-4*0
1-Cyclopropene-1,2-diyl C1[C]=[C]1791.0790.5± 1.5kJ/mol38.0480 ±
0.0024
202744-75-0*0
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-]1464.9455.4± 1.3kJ/mol76.0965 ±
0.0048
219298-17-6*0
Cycloheptane C1CCCCCC1-126.91-156.80± 0.51kJ/mol98.1861 ±
0.0057
291-64-5*500
Imidogen anion [NH-]322.62322.67± 0.17kJ/mol15.015229 ±
0.000099
23841-33-0*0
Aminomethyliumyl [CH][NH2+]1039.51031.9± 2.3kJ/mol29.04071 ±
0.00083
89302-94-3*0
Ethylbenzene c1ccc(cc1)CC-12.55± 0.55kJ/mol106.1650 ±
0.0064
100-41-4*500
Hydrogen chloride Cl-165.979± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*829
Phenylacetylene c1ccc(cc1)C#C273.4± 1.1kJ/mol102.1332 ±
0.0064
536-74-3*500
Hypofluorous acid cation O[F+]1142.001138.99± 0.87kJ/mol36.00519 ±
0.00031
90243-22-4*0
Phenyloxoniumylidene c1ccc(cc1)[O+]901.5887.2± 2.2kJ/mol93.1028 ±
0.0048
41071-17-4*0
Anisole c1ccccc1OC-47.79-72.64± 0.80kJ/mol108.1378 ±
0.0056
100-66-3*0
Hydrogen fluoride F-321.06± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*888
Fluorobenzene c1ccc(cc1)F-151.81-149.39± 0.89kJ/mol96.1023 ±
0.0048
462-06-6*500
Hydrogen chloride Cl-165.945± 0.026kJ/mol36.46064 ±
0.00090
7647-01-0*907
1-Ethylium-1-yl [CH+]C1182.01174.7± 3.2kJ/mol28.0526 ±
0.0016
85944-79-2*0
Ethylidene anion [CH-]C325.7318.4± 1.8kJ/mol28.0537 ±
0.0016
35829-99-3*0
Bromobenzene c1ccc(cc1)Br59.9± 1.3kJ/mol157.0079 ±
0.0049
108-86-1*500
Cyclopropenyliumdiyl [CH+]1C#C11692.11695.0± 1.9kJ/mol37.0395 ±
0.0024
127476-05-5*0
Carbon atom [C]711.397716.882± 0.047kJ/mol12.01070 ±
0.00080
7440-44-0*1
Bromine dioxide [O]Br[O]167.2157.6± 3.0kJ/mol111.9028 ±
0.0012
21255-83-4*0
Hydrogen fluoride F-321.12± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*890
Acetone CC(=O)C-245.03-248.14± 0.36kJ/mol58.0791 ±
0.0025
67-64-1*500
Cyclopropynyl anion [CH-]1C#C1518.0521.0± 1.1kJ/mol37.0406 ±
0.0024
136861-42-2*0
Tribromine BrBrBr155.9134.2± 3.2kJ/mol239.7120 ±
0.0030
11094-39-6*0
Chloryl ion O=[Cl+]=O1100.151097.49± 0.52kJ/mol67.4510 ±
0.0011
25052-55-5*0
Propionaldehyde CCC=O-218.19-216.73± 0.29kJ/mol58.0791 ±
0.0025
123-38-6*500
trans-1,2-Dibromoethene C(\Br)=C/Br121.2101.4± 2.1kJ/mol185.8453 ±
0.0026
590-12-5*0
1,1-Dibromoethene C=C(Br)Br125.1104.8± 2.2kJ/mol185.8453 ±
0.0026
593-92-0*0
Norbornadiene C1C2C=CC1C=C2267.2241.8± 1.1kJ/mol92.1384 ±
0.0056
121-46-0*0
Monoammonium succinate OC(=O)CCC(=O)[O-].[NH4+]-1067.98± 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
Aminomethylene anion [CH][NH2-]353.0346.2± 2.3kJ/mol29.04181 ±
0.00083
207914-86-1*0
Ammonium chloride [NH4+].[Cl-]-311.556-314.717± 0.063kJ/mol53.49120 ±
0.00095
12125-02-9*510
Ammonium bromide [NH4+].[Br-]-253.69-270.26± 0.16kJ/mol97.9425 ±
0.0010
12124-97-9*510
Acrolein C=CC=O-46.6-56.9± 1.4kJ/mol56.0633 ±
0.0024
107-02-8*2
Formaldehyde anion C=[O-]-26.7-28.3± 2.0kJ/mol30.02653 ±
0.00087
27837-46-3*0
Ethenedione O=C=C=O14.016.5± 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
Hypochlorous acid cation O[Cl+]998.91995.87± 0.90kJ/mol52.45949 ±
0.00095
71606-47-8*0
Hypochlorous acid anion O[Cl-]198.7198.4± 2.5kJ/mol52.46059 ±
0.00095
34524-94-2*0
Formaldehyde C=O196.014192.684± 0.097kJ/mol30.02598 ±
0.00087
50-00-0*1
Tribromide Br[Br-]Br-287.4-308.4± 1.9kJ/mol239.7125 ±
0.0030
14522-80-6*0
3-Imino-2-propen-1-ylidene [CH]C=C=N532.9527.9± 1.8kJ/mol53.0627 ±
0.0024
916765-05-4*12
Carbon atom [C]833.328838.474± 0.047kJ/mol12.01070 ±
0.00080
7440-44-0*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± 2.0kJ/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
1-Cyanovinylium C=[C+]C#N1318.71317.5± 2.2kJ/mol52.0542 ±
0.0024
85399-09-3*0
Triazirinylium ion [N]1N=[N+]11608.81605.9± 1.6kJ/mol42.01967 ±
0.00021
92220-05-8*0
Triazirine N1N=N1464.0457.6± 2.6kJ/mol43.02816 ±
0.00022
157-29-9*0
Tetranitrogen cation [N]=NN=[N+]1392.81392.5± 1.5kJ/mol56.02641 ±
0.00028
12185-04-5*0
1-Propenylide CC=[CH-]204.1192.8± 1.8kJ/mol41.0723 ±
0.0024
65887-20-9*2
Peroxyhypochlorous acid anion OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*2
Isodiazene anion [N-]N380.9374.1± 2.1kJ/mol30.02991 ±
0.00020
*63986-30-1*0
Oxygen difluoride cation FO[F+]1292.111289.59± 0.66kJ/mol53.99566 ±
0.00030
39432-25-2*0
Tetraoxodinitrogen cation O=N(=O)[N+](=O)=O1030.61025.1± 2.6kJ/mol92.0105 ±
0.0012
64476-91-1*0
Iodine monochloride ICl-36.511-35.537± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*510
Chlorodioxidenium ClO[O+]1202.71200.4± 3.4kJ/mol67.4510 ±
0.0011
64710-10-7*0
Cyclopropylium C1C[CH+]11104.51093.0± 2.5kJ/mol41.0713 ±
0.0024
1724-43-2*0
Acetic acid CC(=O)O-484.91± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*839
Hydrogen difluoride cation [F+]F[H]1267.61265.4± 4.1kJ/mol39.004198 ±
0.000070
*126950-54-7*1
Methyl acetate CC(=O)OC-445.74± 0.61kJ/mol74.0785 ±
0.0025
79-20-9*500
Acetonitrile CC#N40.59± 0.23kJ/mol41.0520 ±
0.0016
75-05-8*500
Oxygen difluoride anion FO[F-]-202.0-201.9± 2.7kJ/mol53.99675 ±
0.00030
*7783-41-7*0
Trioxirane O1OO1272.9270.3± 1.3kJ/mol47.99820 ±
0.00090
153851-84-4*0
Dihydrogen fluoride F.H-56.5-54.2± 1.7kJ/mol21.01428 ±
0.00014
12592-22-2*2
Hydrazine NN57.2550.68± 0.18kJ/mol32.04524 ±
0.00031
302-01-2*500
Propionic acid CCC(=O)O-505.47-509.61± 0.18kJ/mol74.0785 ±
0.0025
79-09-4*500
Ethylene glycol OCCO-448.73-455.24± 0.37kJ/mol62.0678 ±
0.0018
107-21-1*500
Dioxymethylidyne cation [C+]O[O]1436.61439.1± 2.7kJ/mol44.00895 ±
0.00100
*791121-04-5*2
Carbon dioxide anion [C-](=O)=O-340.6-340.1± 2.2kJ/mol44.01005 ±
0.00100
14485-07-5*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-43.60± 0.39kJ/mol45.0837 ±
0.0017
124-40-3*500
Peroxynitrous acid OON=O-5.81-11.64± 0.36kJ/mol63.01288 ±
0.00091
14691-52-2*0
Trimethylamine CN(C)C-49.37± 0.99kJ/mol59.1103 ±
0.0025
75-50-3*500
1-Propynylium CC#[C+]1546.91544.9± 3.1kJ/mol39.0554 ±
0.0024
24858-94-4*0
Hydroxylamine NO-97.1± 2.2kJ/mol33.02996 ±
0.00037
7803-49-8*1000
Cyanogen anion N#CC#[N-]281.5284.7± 2.2kJ/mol52.0354 ±
0.0016
11118-88-0*0
Propane cation CC[CH3+]974.6954.7± 1.7kJ/mol44.0951 ±
0.0025
34479-70-4*0
Diisocyanogen cation [C]#[N+][N+]#[C-]1824.81827.5± 3.3kJ/mol52.0343 ±
0.0016
*78800-21-2*1
Hydroxyoxoammoniumyl O[N+]=O984.1977.7± 1.7kJ/mol47.01293 ±
0.00061
80371-48-8*1
Cyanoaminyliumyl [N]=[C+]=[N]1671.61672.9± 2.6kJ/mol40.02363 ±
0.00081
316122-03-9*0
Cyanoamidogen anion [N]=[C-]=[N]210.92210.85± 0.77kJ/mol40.02473 ±
0.00081
189879-95-6*0
Azide [N]N=[N-]272.56± 0.48kJ/mol42.02077 ±
0.00021
14343-69-2*800
Bromosyl bromide BrBr[O]178.8163.0± 2.1kJ/mol175.8074 ±
0.0020
68322-97-4*0
Cyanamide NC#N58.89± 0.54kJ/mol42.04006 ±
0.00082
420-04-2*500
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
Hydronium radical O.[H]-18.5-21.6± 2.1kJ/mol19.02322 ±
0.00037
12168-76-2*100
Dioxygen difluoride [O][O](F)F75.171.6± 3.6kJ/mol69.99561 ±
0.00060
183051-89-0*0
Peroxychlorous acid O=ClOO103.597.6± 2.5kJ/mol84.4588 ±
0.0013
177778-92-6*2
Trioxidanyl OO[O]25.3223.23± 0.13kJ/mol49.00614 ±
0.00090
12500-78-6*0
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
Dioxohydrazine O=NN=O172.89171.12± 0.14kJ/mol60.01228 ±
0.00062
16824-89-8*2
Isocyanic fluoride FN=[C]301.3303.1± 1.7kJ/mol45.01584 ±
0.00080
16992-26-0*0
Cycloprop-1-enylium C1C=[C+]11502.31498.0± 2.2kJ/mol39.0554 ±
0.0024
117067-78-4*0
Cycloprop-1-enylide C1C=[C-]1373.5369.1± 2.2kJ/mol39.0565 ±
0.0024
80251-77-0*0
Deuterium hydride [H][2H]0.3280.319± 0.000kJ/mol3.022042 ±
0.000070
13983-20-5*0
Dioxymethylidyne cation [C+]O[O]1388.21391.7± 3.2kJ/mol44.00895 ±
0.00100
*791121-04-5*101
Isoprene CC(=C)C=C48.79± 0.70kJ/mol68.1170 ±
0.0040
78-79-5*500
Cycloprop-2-enylide C1=C[CH-]1514.8511.8± 2.2kJ/mol39.0565 ±
0.0024
20829-57-6*0
1,1,1-Trichloroethane CC(Cl)(Cl)Cl-177.54± 0.49kJ/mol133.4033 ±
0.0031
71-55-6*500
Bromoniumyl [BrH+]1097.731089.89± 0.14kJ/mol80.9114 ±
0.0010
12258-64-9*0
Dioxiranylidene anion [C-]1OO1-110.2-109.7± 3.0kJ/mol44.01005 ±
0.00100
*138832-58-3*0
Nitrous acid anion O[N-]=O-105.85-110.48± 0.78kJ/mol47.01403 ±
0.00061
256393-36-9*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
Hydrogen chloride Cl-166.741± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*842
Isocyanogen chloride ClN=[C]314.5316.2± 2.4kJ/mol61.4701 ±
0.0012
75754-69-7*0
1,1-Dichloroethene C=C(Cl)Cl-23.80± 0.50kJ/mol96.9427 ±
0.0024
75-35-4*500
Dihydrogen [H][H]1.4170.019± 0.000kJ/mol2.01588 ±
0.00014
1333-74-0*1
Trifluorine FFF80.681.9± 2.6kJ/mol56.9952096 ±
0.0000015
73455-86-4*0
Difluorodioxidanium FO[O+]F1283.61279.1± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*1
1-Ethenylium-1-yl [C+]=C1507.11507.1± 2.1kJ/mol26.0367 ±
0.0016
80541-07-7*0
Dichloromethane C(Cl)Cl-122.57± 0.53kJ/mol84.9320 ±
0.0020
75-09-2*590
Dihydrogen cation [H][H+]1489.0601488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*1
Tetraoxidanyl OOO[O]53.046.0± 5.1kJ/mol65.0055 ±
0.0012
69696-93-1*2
Trihydrogen [H]1[H][H]1756.931754.146± 0.015kJ/mol3.02382 ±
0.00021
12184-91-7*2
1-Methyl-1-ethylium-1-yl C[C+]C1058.41045.9± 2.5kJ/mol42.0792 ±
0.0024
121408-19-3*0
Isopropylidene anion C[C-]C282.6268.5± 2.6kJ/mol42.0803 ±
0.0024
*121408-19-3*0
Ammonia anion [NH3-]94.387.3± 2.4kJ/mol17.03111 ±
0.00022
37353-00-7*0
Difluoromethylene anion [C-](F)F-211.18-210.00± 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
Isocyanogen bromide BrN=[C]341.1335.4± 3.4kJ/mol105.9214 ±
0.0013
65997-98-0*0
Cyclohexane C1CCCCC1-156.27± 0.36kJ/mol84.1595 ±
0.0049
110-82-7*500
Tetraazatetrahedrane N12N3N1N23763.7757.2± 1.7kJ/mol56.02696 ±
0.00028
12596-63-3*0
Cyclopropenylidene anion C1=[C-]=C1544.2543.8± 2.2kJ/mol38.0485 ±
0.0024
*16165-40-5*0
Hydrochlorate ion [ClH-]-25.2-24.2± 2.5kJ/mol36.46119 ±
0.00090
63099-75-2*0
Trioxidane OOO-82.04-90.64± 0.70kJ/mol50.01408 ±
0.00091
14699-99-1*0
Difluorovinylidene [C]=C(F)F129.4130.7± 2.2kJ/mol62.0182 ±
0.0016
41895-33-4*0
Fluoroethynylium [C+]#CF1536.21540.9± 2.3kJ/mol43.0193 ±
0.0016
268566-69-4*0
Bromoacetylene C#CBr281.7275.2± 1.6kJ/mol104.9333 ±
0.0019
593-61-3*0
Isocyanogen iodide IN=[C]341.8342.1± 4.9kJ/mol152.92191 ±
0.00080
66004-32-8*0
Isocyanogen iodide anion IN=[C-]123.0125.2± 9.3kJ/mol152.92246 ±
0.00080
*66004-32-8*0
n-Heptane CCCCCCC-201.72-224.18± 0.48kJ/mol100.2019 ±
0.0057
142-82-5*500
Chloro(chlorooxy)methylene Cl[C]OCl98.101.± 15.kJ/mol98.9155 ±
0.0020
479587-31-0*11
n-Octane CCCCCCCC-226.65-249.77± 0.67kJ/mol114.2285 ±
0.0065
111-65-9*500
Chlorooxomethylium Cl[C+]=O783.7783.9± 2.2kJ/mol63.4623 ±
0.0012
38264-03-8*0
2-Oxo-1-ethylium-1-yl [CH+]C=O1289.51286.1± 2.7kJ/mol42.0361 ±
0.0016
214464-96-7*11
2-Iodoethanol ICCO-207.2± 2.4kJ/mol171.9650 ±
0.0017
624-76-0*590
1,3-Butadiyne cation C#CC#[CH+]1439.691441.55± 0.81kJ/mol50.0581 ±
0.0032
55468-55-8*0
Oxoethylidene anion [CH-]C=O87.083.7± 2.3kJ/mol42.0372 ±
0.0016
106543-38-8*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-131.5-128.0± 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
Hydrogen fluoride F-321.03± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*887
Methylamine CN-45.41± 0.47kJ/mol31.05714 ±
0.00088
74-89-5*500
NON cation [N]O[N+]1443.91444.1± 2.8kJ/mol44.01233 ±
0.00033
*227934-46-5*0
o-Benzyne C1=CC#CC=C1625.4616.1± 1.1kJ/mol76.0960 ±
0.0048
462-80-6*1
m-Benzyne c1[c]ccc[c]1526.8518.4± 1.2kJ/mol76.0960 ±
0.0048
1828-89-3*0
Vinylidene [C]=C610.45610.15± 0.51kJ/mol26.0373 ±
0.0016
2143-69-3*1
p-Benzyne cation c1c[c]cc[c+]11425.71418.4± 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
2-Propen-3-ylium-1-ylidyne [CH][CH][C+]1791.11792.7± 2.6kJ/mol38.0474 ±
0.0024
161054-36-0*0
Toluene c1ccc(cc1)C19.7211.97± 0.34kJ/mol92.1384 ±
0.0056
108-88-3*500
Chlorine chlorite ClO[Cl]=O177.4175.0± 2.2kJ/mol102.9042 ±
0.0019
105206-44-8*2
Propenediylidene anion [CH][CH][C-]588.8590.0± 2.3kJ/mol38.0485 ±
0.0024
*161054-36-0*0
Hydrogen fluoride F-321.47± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*832
Cyclopentadienylium [CH+]1C=CC=C11087.601074.73± 0.93kJ/mol65.0927 ±
0.0040
29661-18-5*0
1,3-Propanediyl [CH2]C[CH2]320.0308.2± 1.7kJ/mol42.0797 ±
0.0024
32458-33-6*1
Cycloheptene C1CCC=CCC1-25.5-46.6± 1.7kJ/mol96.1702 ±
0.0057
628-92-2*500
Cycloheptatriene C1C=CC=CC=C1153.67144.89± 0.97kJ/mol92.1384 ±
0.0056
544-25-2*500
Hydrogen bromide Br-120.54± 0.15kJ/mol80.9119 ±
0.0010
10035-10-6*839
Carbon dioxide cation [C+](=O)=O1335.01335.5± 2.4kJ/mol44.00895 ±
0.00100
12181-61-2*1
1,5-Hexadiene C=CCCC=C54.42± 0.32kJ/mol82.1436 ±
0.0049
592-42-7*500
Phenylethene c1ccc(cc1)C=C104.30± 0.48kJ/mol104.1491 ±
0.0064
100-42-5*500
Hydrogen chloride Cl-166.104± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*830
Triiodine III153.4149.4± 3.6kJ/mol380.713410 ±
0.000090
12596-31-5*0
Phenol c1ccc(cc1)O-146.43-162.28± 0.66kJ/mol94.1112 ±
0.0048
108-95-2*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
Anisole c1ccccc1OC-119.56± 0.77kJ/mol108.1378 ±
0.0056
100-66-3*500
Benzaldehyde c1ccc(cc1)C=O-85.8-86.9± 1.1kJ/mol106.1219 ±
0.0056
100-52-7*500
Carbon monoxide anion [C]#[O-]30.033.7± 2.3kJ/mol28.01065 ±
0.00085
12539-63-8*0
Fluorobenzene anion c1ccc(cc1)[F-]-18.3-30.2± 1.8kJ/mol96.1029 ±
0.0048
34561-55-2*0
Hydrazoic acid cation N=[N+]=[N]1333.621327.94± 0.83kJ/mol43.02761 ±
0.00022
58852-14-5*0
m-Chlorophenylium c1(Cl)c[c+]ccc11159.81149.7± 2.6kJ/mol111.5481 ±
0.0049
127983-85-1*0
Formic acid C(=O)O-431.55-424.72± 0.20kJ/mol46.0254 ±
0.0010
64-18-6*500
p-Chlorophenylium c1(Cl)cc[c+]cc11147.11137.6± 2.5kJ/mol111.5481 ±
0.0049
42766-43-8*0
o-Chlorophenylium c1(Cl)[c+]cccc11166.41157.2± 2.5kJ/mol111.5481 ±
0.0049
137963-70-3*0
Methanol dimer CO.CO-398.5-419.2± 1.4kJ/mol64.0837 ±
0.0018
42845-44-3*0
Iodobenzene cation c1ccc(cc1)[I+]1022.661007.22± 0.99kJ/mol204.0078 ±
0.0048
38406-85-8*0
Perchloryl cation O=[Cl+](=O)[O]1252.01246.3± 2.5kJ/mol83.4504 ±
0.0013
23594-88-9*0
Nitrobenzene c1ccc(cc1)[N+](=O)[O-]6.3± 1.4kJ/mol123.1094 ±
0.0049
98-95-3*500
Dioxodiazoxane O=NON=O125.7120.4± 2.1kJ/mol76.01168 ±
0.00091
122413-35-8*3
Nitric acid O[N+](=O)[O-]-186.85± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*801
Nitromethane C[N+](=O)[O-]-114.18-113.00± 0.43kJ/mol61.0401 ±
0.0010
75-52-5*500
Tetrazete N1=NN=N1764.9759.0± 1.8kJ/mol56.02696 ±
0.00028
42851-09-2*0
Hydrogen peroxide OO-193.171-187.354± 0.080kJ/mol34.01468 ±
0.00062
7722-84-1*500
2,2,4-Trimethylpentane CC(C)CC(C)(C)C-224.5-258.9± 1.5kJ/mol114.2285 ±
0.0065
540-84-1*500
Norbornadiene C1C2C=CC1C=C2208.5± 1.2kJ/mol92.1384 ±
0.0056
121-46-0*500
2,3-Butanedione CC(=O)C(=O)C-365.62± 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
(Z)-Diazene anion [H]/N=[N-]\[H]280.0273.3± 2.0kJ/mol30.02991 ±
0.00020
*86631-37-0*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]1038.151036.38± 0.89kJ/mol132.2974 ±
0.0200
37276-91-8*0
2-Butanone CCC(=O)C-267.84-273.33± 0.91kJ/mol72.1057 ±
0.0033
78-93-3*500
Hydrazoic acid anion N=[N]=[N-]309.0302.7± 2.4kJ/mol43.02871 ±
0.00022
203264-98-6*1
Formyloxidanyl C(=O)[O]-125.86-127.22± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*0
Dioxiranyl O1[CH]O1217.4213.9± 2.0kJ/mol45.0174 ±
0.0010
120595-16-6*0
Acrolein C=CC=O-95.8± 1.4kJ/mol56.0633 ±
0.0024
107-02-8*500
Peroxyhypochlorous acid cation OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*1
Nitric acid O[N+](=O)[O-]-197.77± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*805
Ethenedione anion O=C=C=[O-]-148.4-145.8± 2.4kJ/mol56.0207 ±
0.0017
77783-15-4*0
1-Propenylium CC=[CH+]1231.91221.6± 1.7kJ/mol41.0713 ±
0.0024
50457-58-4*2
Urea NC(=O)N-317.79-333.39± 0.12kJ/mol60.05534 ±
0.00091
57-13-6*500
Hydraziniumyl N[NH2+]886.5873.2± 2.0kJ/mol32.04469 ±
0.00031
20771-51-1*0
Formamide NC=O-250.95± 0.29kJ/mol45.04066 ±
0.00088
75-12-7*500
Chlorine hydride oxide [H][Cl](=O)(=O)=O165.1155.3± 2.5kJ/mol84.4588 ±
0.0013
1027055-52-2*0
Nitrosyl nitrite anion O=NON=[O-]-103.1-106.2± 2.8kJ/mol76.01223 ±
0.00091
*122413-35-8*1
Carbon monoxide [C-]#[O+]465.579469.286± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*1
Nitric acid trihydrate O[N+](=O)[O-].O.O.O-1062.11-1055.26± 0.21kJ/mol117.0587 ±
0.0019
13444-83-2*500
Paraformaldehyde C=O-179.2± 1.6kJ/mol30.02598 ±
0.00087
30525-89-4*500
Acrylonitrile C=CC#N446.4441.0± 1.8kJ/mol53.0627 ±
0.0024
107-13-1*2
Acrylonitrile C=CC#N146.35154.01± 0.81kJ/mol53.0627 ±
0.0024
107-13-1*500
Nitric acid monohydrate O[N+](=O)[O-].O-479.18-472.68± 0.19kJ/mol81.0282 ±
0.0012
13444-82-1*500
Isocyanoethene C=C[N+]#[C-]544.1539.2± 1.8kJ/mol53.0627 ±
0.0024
14668-82-7*2
Hydrogen difluoride cation F[H][F+]1241.1238.± 16.kJ/mol39.004198 ±
0.000070
126950-54-7*1
1-Isocyanoethylidene C[C][N+]#[C-]527.7523.0± 1.1kJ/mol53.0627 ±
0.0024
*498544-34-6*0
Hydrogen chloride Cl-166.565± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*839
Ethoxyethane CCOCC-265.35-277.67± 0.82kJ/mol74.1216 ±
0.0033
60-29-7*500
Oxadiazirine cation [N+]1=NO11509.91507.2± 2.4kJ/mol44.01233 ±
0.00033
*227934-45-4*0
2,4,5-Trioxa-1,3-diazabicyclo[1.1.1]pentane N12ON(O1)O2602.5593.3± 2.1kJ/mol76.01168 ±
0.00091
224950-18-9*0
Dioxiranylidene cation [C+]1OO11409.11410.3± 2.6kJ/mol44.00895 ±
0.00100
*138832-57-2*0
Cyclobutane C1CCC13.92± 0.41kJ/mol56.1063 ±
0.0032
287-23-0*590
Methylcyclopropane CC1CC11.83± 0.59kJ/mol56.1063 ±
0.0032
594-11-6*590
Oxygen atom hexacation [O+6]42035.2842037.14± 0.12kJ/mol15.99611 ±
0.00030
14158-22-6*0
NON anion [N]O[N-]495.3492.8± 2.5kJ/mol44.01343 ±
0.00033
*227934-47-6*0
Oxygen atom tetracation [O+4]17719.20717721.064± 0.025kJ/mol15.99721 ±
0.00030
14127-65-2*0
Hydroxyoxoammoniumyl O[N+]=O1014.81008.4± 2.0kJ/mol47.01293 ±
0.00061
80371-48-8*2
Deuteride [2H-]146.991148.904± 0.0021kJ/mol2.01465035791 ±
0.00000000040
14452-69-8*0
Peroxyhypochlorous acid anion OO[Cl-]-2.9-3.3± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*1
Nitrous acid anion O[N-]=O-105.5-109.4± 1.8kJ/mol47.01403 ±
0.00061
256393-36-9*1
2-Propen-1-ylium-1-ylidene C=C[C+]1373.11369.6± 2.0kJ/mol39.0554 ±
0.0024
88000-25-3*0
Trioxirane cation O1O[O+]11444.61442.4± 2.2kJ/mol47.99765 ±
0.00090
*153851-84-4*0
Formylimidogen C(=O)[N]245.3242.1± 3.3kJ/mol43.02478 ±
0.00086
42288-92-6*2
Propylene cation CC=[CH2+]975.21961.68± 0.21kJ/mol42.0792 ±
0.0024
34504-10-4*0
Acetoxy CC(=O)[O]-182.7-191.5± 1.2kJ/mol59.0440 ±
0.0017
13799-69-4*1
Tetrabromomethane C(Br)(Br)(Br)Br48.8± 1.4kJ/mol331.6267 ±
0.0041
558-13-4*500
Cyclopropane cation C1[CH2+]C11022.31006.8± 1.6kJ/mol42.0792 ±
0.0024
34496-93-0*0
Tetraiodomethane C(I)(I)(I)I392.5± 8.0kJ/mol519.62858 ±
0.00081
507-25-5*500
Bromomethane CBr-56.58-59.60± 0.19kJ/mol94.9385 ±
0.0013
74-83-9*590
Iodine monochloride ICl-24.048± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*590
1-Propen-1-yl-3-ylidene [CH]C=[CH]657.4654.0± 1.5kJ/mol39.0559 ±
0.0024
84654-90-0*1
Acetoxy CC(=O)[O]-182.7-191.4± 1.2kJ/mol59.0440 ±
0.0017
13799-69-4*0
Dihydrogen anion [H][H-]253.8254.7± 1.2kJ/mol2.01643 ±
0.00014
12184-89-3*0
Nitrosyl nitrate O=NO[N+](=O)[O-]60.452.5± 1.9kJ/mol92.0111 ±
0.0012
15969-55-8*2
iso-Hexane CCCC(C)C-180.36-204.02± 0.83kJ/mol86.1754 ±
0.0049
107-83-5*500
Hydrogen iodide I-56.826± 0.089kJ/mol127.912410 ±
0.000076
10034-85-2*800
Ethynylene [C]=[C]827.50834.21± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*1
Hydrazine monohydrate NN.O-242.67± 0.19kJ/mol50.06052 ±
0.00053
7803-57-8*500
Trioxodinitrate anion O=N-[N](=O)[O-]-87.3-93.1± 2.2kJ/mol76.01223 ±
0.00091
194856-62-7*1
Trihydrogen [H]1[H][H]1745.878743.094± 0.062kJ/mol3.02382 ±
0.00021
12184-91-7*1
Hydrazoic acid N=[N+]=[N-]272.56± 0.48kJ/mol43.02816 ±
0.00022
7782-79-8*800
Ethyl bromide CCBr-55.78-91.31± 0.26kJ/mol108.9651 ±
0.0019
74-96-4*500
Isocyanogen bromide anion BrN=[C-]105.0101.8± 4.6kJ/mol105.9220 ±
0.0013
*238754-53-5*0
Vinyl iodide C=CI139.5130.7± 1.2kJ/mol153.9497 ±
0.0016
593-66-8*0
Propionic acid CCC(=O)O-436.41-454.30± 0.60kJ/mol74.0785 ±
0.0025
79-09-4*0
Peroxyformyl C(=O)O[O]-90.4-95.9± 1.8kJ/mol61.0168 ±
0.0012
56240-83-6*2
Difluorovinylidene cation [C+]=C(F)F1181.61183.0± 2.3kJ/mol62.0177 ±
0.0016
268566-71-8*0
Oxonium [OH3+]605.84599.09± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*2
Hydrogen peroxide cation O[OH+]930.98924.12± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*22
Tetroxidane OOOO-34.2-44.6± 2.4kJ/mol66.0135 ±
0.0012
29683-94-1*0
Chloro(chlorooxy)methylene Cl[C]OCl101.1104.7± 4.8kJ/mol98.9155 ±
0.0020
479587-31-0*12
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*11
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
Acetaldehyde CC=O-187.10-191.82± 0.31kJ/mol44.0526 ±
0.0017
75-07-0*500
Fluorosyl fluoride FF[O]227.225.± 21.kJ/mol53.99621 ±
0.00030
86825-57-2*2
2-Oxo-1-ethylium-1-yl [CH+]C=O1292.11288.8± 2.6kJ/mol42.0361 ±
0.0016
214464-96-7*12
1-Propenylium CC=[CH+]1233.81223.4± 2.0kJ/mol41.0713 ±
0.0024
50457-58-4*1
Carbon suboxide O=C=C=C=O-131.7-116.6± 1.3kJ/mol68.0309 ±
0.0025
504-64-3*500
Oxoethylidene anion [CH-]C=O92.389.1± 2.5kJ/mol42.0372 ±
0.0016
106543-38-8*2
1-Propenylide CC=[CH-]210.5199.4± 2.1kJ/mol41.0723 ±
0.0024
65887-20-9*1
Dioxaziridine N1OO1277.3270.6± 2.0kJ/mol47.01348 ±
0.00061
67394-35-8*0
Difluorodioxidanium FO[O+]F1287.11283.0± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*2
m-Benzyne c1[c]ccc[c]1614.5605.1± 1.4kJ/mol76.0960 ±
0.0048
1828-89-3*1
Diatomic bromine cation Br[Br+]1060.321045.37± 0.23kJ/mol159.8075 ±
0.0020
12595-71-0*0
Hydrazoic acid N=[N+]=[N-]257.58± 0.48kJ/mol43.02816 ±
0.00022
7782-79-8*1000
Chlorine trifluoride cation F[Cl+](F)F1053.41049.1± 2.5kJ/mol92.44736 ±
0.00090
478167-77-0*0
Peroxyformate C(=O)O[O-]-320.7-326.5± 1.8kJ/mol61.0174 ±
0.0012
104960-05-6*2
Methylene [CH2]391.061391.619± 0.098kJ/mol14.02658 ±
0.00081
2465-56-7*0
Nitrogen atom [N]470.579472.441± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*1
Tetraoxodinitrate anion O=N(=O)[N-](=O)=O-184.6-187.8± 2.4kJ/mol92.0116 ±
0.0012
63552-02-3*0
mu-Oxodichlorine cation Cl[O+]Cl1130.441126.83± 0.63kJ/mol86.9043 ±
0.0018
51174-96-0*0
Isocyanogen cation [C]#[N+]C#N1653.11655.4± 1.6kJ/mol52.0343 ±
0.0016
133415-63-1*0
Tropylide [CH-]1C=CC=CC=C1260.9244.6± 2.0kJ/mol91.1310 ±
0.0056
34464-18-1*0
Hydroxymethylene [CH]O112.67108.91± 0.28kJ/mol30.02598 ±
0.00087
19710-56-6*0
Hypochloroperoxoous acid, hydroxy ester OOOCl49.542.5± 2.5kJ/mol84.4588 ±
0.0013
928652-99-7*2
Diisocyanogen cation [C]#[N+][N+]#[C-]1838.01842.0± 3.1kJ/mol52.0343 ±
0.0016
*78800-21-2*2
Oxygen atom pentacation [O+5]28708.78828710.646± 0.053kJ/mol15.99666 ±
0.00030
14127-66-3*0
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
Hydroxylamine NO-33.23-43.60± 0.46kJ/mol33.02996 ±
0.00037
7803-49-8*0
Dihydrogen cation [H][H+]1488.3641488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*2
Trioxygen difluoride FOOOF112.2107.1± 1.1kJ/mol85.99501 ±
0.00090
16829-28-0*0
Trihydrogen [H]1[H][H]1215.9218.3± 1.1kJ/mol3.02382 ±
0.00021
12184-91-7*100
Acetic acid CC(=O)O-484.89± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*833
1-Hydroxyethyl C[CH]O-42.74-56.17± 0.58kJ/mol45.0605 ±
0.0017
2348-46-1*0
Hydrogen peroxide OO-129.480-135.465± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*2
Iodine [I]198.109197.709± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*2
Water trimer O.O.O-762.73-776.84± 0.21kJ/mol54.04584 ±
0.00099
31014-12-7*0
Deuterium molecule cation [2H][2H+]1492.2861492.361± 0.000kJ/mol4.02765497609 ±
0.00000000080
12184-84-8*0
Acetic acid CC(=O)O-484.94± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*850
2-Chloro ozone ClO([O])[O]265.9265.3± 3.7kJ/mol83.4509 ±
0.0013
*141801-66-3*0
Ammonium hydroxide [NH4+].[OH-]-366.716± 0.062kJ/mol35.04584 ±
0.00047
1336-21-6*1000
Dihydrogen [H][H]-0.000-0.058± 0.000kJ/mol2.01588 ±
0.00014
1333-74-0*2
Tribromine cation Br[Br+]Br1035.91013.2± 2.6kJ/mol239.7115 ±
0.0030
33105-86-1*0
Methyl acetate CC(=O)OC-394.29-413.15± 0.61kJ/mol74.0785 ±
0.0025
79-20-9*0
Fluorine atom [F]77.25879.043± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*1
Succinic acid OC(=O)CCC(=O)O-918.55-940.28± 0.13kJ/mol118.0880 ±
0.0034
110-15-6*500
Bicyclo[1.1.0]buta-1,3-dien-2-yl anion C12=[C]C2=[C-]1803.6811.3± 2.1kJ/mol48.0433 ±
0.0032
289679-89-6*0
Oxygen atom trication [O+3]10249.92910252.880± 0.018kJ/mol15.99775 ±
0.00030
14127-64-1*0
2-Hydroxyethylium [CH2+]CO1024.41011.9± 2.0kJ/mol45.0600 ±
0.0017
38607-31-7*1
1,2-Dibromoethane C(Br)CBr-80.3± 1.2kJ/mol187.8612 ±
0.0026
106-93-4*500
Difluorine cation F[F+]1514.3011514.475± 0.013kJ/mol37.9962578 ±
0.0000010
12184-86-0*0
Water O-238.932-241.836± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*2
Acetylene C#C599.1598.9± 1.5kJ/mol26.0373 ±
0.0016
74-86-2*11
1-Methylethenylium C[C+]=C995.2986.0± 2.0kJ/mol41.0713 ±
0.0024
50457-57-3*0
Dioxofluorine anion [O]F[O-]155.9154.3± 2.5kJ/mol50.99775 ±
0.00060
*175861-93-5*0
Carbon monoxide [C-]#[O+]-113.803-110.523± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*2
1,3-Butadien-2-ol C=C(O)C=C-43.1-59.6± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*21
1,3-Butadien-2-ol C=C(O)C=C-53.8-69.1± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*1
Acetylene anion C#[CH-]356.8356.7± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*0
Dioxofluorine cation [O]F[O+]1667.01664.8± 2.8kJ/mol50.99665 ±
0.00060
223566-05-0*0
1,3-Butadiyn-4-ylium-1-yl [C]#CC#[C+]2109.92120.5± 2.9kJ/mol48.0423 ±
0.0032
124708-46-9*0
Acrolein C=CC=O-55.3-65.4± 1.2kJ/mol56.0633 ±
0.0024
107-02-8*0
Chlorine atom [Cl]119.621121.228± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*1
Oxoniumyl ion [H][O+][H]978.466975.562± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*1
1,2-Propadien-1-one cation [CH2+]=C=C=O1012.61011.2± 1.9kJ/mol54.0468 ±
0.0024
87612-93-9*0
2-Propynal cation C#[C+]C=O1168.31167.2± 1.6kJ/mol54.0468 ±
0.0024
100815-70-1*0
1-Methylethenyl anion C[C-]=C199.4188.2± 2.0kJ/mol41.0723 ±
0.0024
65887-19-6*0
sec-Butylium CC[CH+]C792.9769.2± 1.8kJ/mol57.1137 ±
0.0033
16548-59-7*0
Water O-286.302-292.743± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*510
Oxygen atom heptacation [O+7]113369.48113371.34± 0.12kJ/mol15.99556 ±
0.00030
14274-89-6*0
Trihydrogen cation [H]1[H+][H]11110.3041106.697± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*2
Oxygen atom octacation [O+8]197447.75197449.60± 0.12kJ/mol15.99501 ±
0.00030
21450-98-6*0
Polyoxymethylene C=O-170.88± 0.21kJ/mol30.02598 ±
0.00087
9002-81-7*500
Cyclopentadiene C1C=CC=C1109.87± 0.58kJ/mol66.1011 ±
0.0040
542-92-7*590
Methylaminyliumyl C[N+]1388.41382.1± 2.6kJ/mol29.04071 ±
0.00083
56924-51-7*1
Hydroxylamine NO-107.61± 0.63kJ/mol33.02996 ±
0.00037
7803-49-8*500
mu-Oxodichlorate anion Cl[O-]Cl-147.8-147.7± 2.5kJ/mol86.9053 ±
0.0018
365546-30-1*0
Peroxyhypochlorous acid cation OO[Cl+]1050.81045.1± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*2
Tribromide Br[Br-]Br-129.51± 0.25kJ/mol239.7125 ±
0.0030
14522-80-6*800
Formaldehyde C=O-171.19± 0.59kJ/mol30.02598 ±
0.00087
50-00-0*800
1,3-Butadiynyl anion [C]#CC#[C-]677.7686.8± 1.2kJ/mol48.0433 ±
0.0032
59158-53-1*0
3-Imino-2-propen-1-ylidene [CH]C=C=N530.7526.3± 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
Hydrogen fluoride F-321.15± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*906
Oxygen atom dication [O++]4949.4594953.000± 0.013kJ/mol15.99830 ±
0.00030
14127-63-0*0
Hydrazoic acid anion N=[N]=[N-]316.1310.0± 2.4kJ/mol43.02871 ±
0.00022
203264-98-6*2
Bromodioxy BrO[O]118.3109.2± 4.3kJ/mol111.9028 ±
0.0012
67177-47-3*0
Methyl formate COC=O-346.85-359.89± 0.84kJ/mol60.0520 ±
0.0017
107-31-3*0
Ethynylene [C]=[C]820.28826.85± 0.26kJ/mol24.0214 ±
0.0016
12070-15-4*2
Ethyl formate C(=O)OCC-375.2-393.9± 1.2kJ/mol74.0785 ±
0.0025
109-94-4*0
Nitrosyl nitrite anion O=NON=[O-]-100.3-103.5± 2.9kJ/mol76.01223 ±
0.00091
*122413-35-8*2
Dinitrogen dimer N#N.N#N-0.880.84± 0.67kJ/mol56.02696 ±
0.00028
154680-01-0*0
Phosgene C(=O)(Cl)Cl-242.73± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*501
Phosgene C(=O)(Cl)Cl-255.44-242.73± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*502
O--HH Complex [H][H].[O]247.6248.9± 2.7kJ/mol18.01528 ±
0.00033
*7732-18-5*101
Chloro(chlorooxy)methylene Cl[C]OCl73.573.9± 3.6kJ/mol98.9155 ±
0.0020
479587-31-0*0
Chloro(chlorooxy)methylene Cl[C]OCl98.105.± 15.kJ/mol98.9155 ±
0.0020
479587-31-0*1
Water O-238.648-241.836± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*1
Dichlorovinylidene [C]=C(Cl)Cl421.6424.8± 3.0kJ/mol94.9268 ±
0.0024
20394-25-6*0
Chlorovinylidene [C]=CCl428.1429.8± 3.0kJ/mol60.4820 ±
0.0018
70277-82-6*0
Acetyloxoniumylidene CC(=O)[O+]891.7883.3± 3.0kJ/mol59.0435 ±
0.0017
67057-47-0*1
Chlorohydroxymethylene Cl[C]OH14.311.4± 3.2kJ/mol64.4707 ±
0.0012
147723-60-2*2
Chlorohydroxymethylene Cl[C]OH13.911.2± 2.6kJ/mol64.4707 ±
0.0012
147723-60-2*0
Dinitrogen tetraoxide O=N(=O)N(=O)=O-37.87-27.02± 0.19kJ/mol92.0111 ±
0.0012
10544-72-6*500
(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
Oxiranylidene C1[C]O1213.5209.3± 1.4kJ/mol42.0367 ±
0.0016
50983-85-2*0
Dioxoethylium C(=O)[C+]=O688.2689.5± 3.1kJ/mol57.0276 ±
0.0017
*1994332-01-2*0
Chloroformyl anion Cl[C-]=O-356.5-352.9± 3.2kJ/mol63.4633 ±
0.0012
41976-93-6*0
Nitrosodioxaziridine O=NN1OO1413.8408.1± 3.2kJ/mol76.01168 ±
0.00091
132871-99-9*2
Hydrazine anion N[NH2-]232.1217.8± 4.1kJ/mol32.04579 ±
0.00031
65391-88-0*0
Diazenide N#N.[H-]175.7176.7± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*0
Dichlorine cation Cl[Cl+]1108.2871108.266± 0.013kJ/mol70.9049 ±
0.0018
12595-90-3*0
Ethanedial anion C(=O)[C-]=O-189.1-190.7± 3.3kJ/mol57.0287 ±
0.0017
1994332-01-2*0
Trioxygen difluoride FOOOF113.4107.6± 2.1kJ/mol85.99501 ±
0.00090
16829-28-0*2
Isocyanic fluoride anion FN=[C-]74.376.0± 5.7kJ/mol45.01639 ±
0.00080
357426-78-9*0
Chlorous acid cation O[Cl+]=O996.6991.5± 3.1kJ/mol68.4589 ±
0.0011
*99559-66-7*0
2-Iodoethanol ICCO-132.0-150.2± 2.5kJ/mol171.9650 ±
0.0017
624-76-0*0
Nitrogen atom anion [N-]487.6489.9± 2.5kJ/mol14.007289 ±
0.000070
17778-87-9*0
Hydroxyoxoethenylium O[C+]=C=O866.3865.0± 3.6kJ/mol57.0276 ±
0.0017
*1994332-00-1*0
Ethynediolide O[C-]=C=O-133.0-134.2± 3.5kJ/mol57.0287 ±
0.0017
1994332-00-1*0
Fluorosyl fluoride FF[O]192.6193.1± 2.3kJ/mol53.99621 ±
0.00030
86825-57-2*0
Fluoromethane cation C[F+]981.80974.30± 0.62kJ/mol34.03237 ±
0.00083
59122-96-2*0
Fluoromethane CF-245.76± 0.45kJ/mol34.03292 ±
0.00083
593-53-3*590
Iminomethyl anion [CH-]=N237.3233.6± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*0
Cyanomethylium [CH2+]C#N1256.701254.06± 0.82kJ/mol40.0435 ±
0.0016
34430-18-7*0
Dioxyamidogen [NH-][O+]=O251.1244.5± 2.5kJ/mol47.01348 ±
0.00061
71843-95-3*1
Trihydrogen [H]1[H][H]1477.4474.7± 2.3kJ/mol3.02382 ±
0.00021
12184-91-7*201
Propynylidene [CH]=C=[CH]597.6599.4± 1.3kJ/mol38.0480 ±
0.0024
67152-18-5*2
Chloromethane CCl-106.42-102.45± 0.19kJ/mol50.4872 ±
0.0012
74-87-3*590
1-Methylethylidene C[C]C316.2303.3± 2.0kJ/mol42.0797 ±
0.0024
40852-89-9*0
Ethylene anion C=[CH2-]232.0225.6± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*0
Propargylenide C#C[CH-]434.4437.6± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*0
Fluorosyl fluoride anion FF[O-]-147.2-146.9± 3.0kJ/mol53.99675 ±
0.00030
*86825-57-2*0
Isocyanic acid anion [NH-]=C=O-54.3-57.5± 3.0kJ/mol43.02533 ±
0.00086
*444010-28-0*0
(Methylamino)methyl anion CN[CH2-]201.0184.1± 3.2kJ/mol44.0763 ±
0.0017
*31277-25-5*0
Methyl bromide cation C[Br+]996.25981.34± 0.18kJ/mol94.9380 ±
0.0013
12538-70-4*0
Hydroperoxonium [OH2+]O762.5752.7± 2.0kJ/mol35.02207 ±
0.00064
70850-26-9*2
Chlorine trifluoride anion F[Cl-](F)F-480.4-481.9± 3.6kJ/mol92.44846 ±
0.00090
184289-50-7*0
Oxoethylidene [CH]C=O261.2258.4± 1.6kJ/mol42.0367 ±
0.0016
39920-84-8*0
2-Oxo-1-ethylium-1-yl [CH+]C=O1289.51286.8± 2.7kJ/mol42.0361 ±
0.0016
214464-96-7*1
Oxoethylidene anion [CH-]C=O87.084.3± 2.3kJ/mol42.0372 ±
0.0016
106543-38-8*0
Methyl iodide cation C[I+]944.79935.39± 0.18kJ/mol141.93844 ±
0.00083
12538-72-6*0
Dicarbon monoxide [C]=C=O377.13381.17± 0.98kJ/mol40.0208 ±
0.0016
12071-23-7*0
Peroxyhypochlorous acid cation OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*0
Fluoroform C(F)(F)F-704.44± 0.43kJ/mol70.01385 ±
0.00080
75-46-7*590
Tetraoxidanyl OOO[O]76.769.5± 6.1kJ/mol65.0055 ±
0.0012
69696-93-1*1
Peroxyformyl C(=O)O[O]-100.42-105.52± 0.93kJ/mol61.0168 ±
0.0012
56240-83-6*0
Cyanogen chloride anion ClC#[N-]46.751.0± 3.1kJ/mol61.4707 ±
0.0012
12281-43-5*0
Peroxychlorous acid O=ClOO96.290.6± 2.1kJ/mol84.4588 ±
0.0013
177778-92-6*0
Cyanogen chloride cation Cl[C+]#N1326.031327.36± 0.97kJ/mol61.4696 ±
0.0012
37612-72-9*0
Isocyanogen chloride cation ClN=[C+]1480.81482.0± 3.9kJ/mol61.4696 ±
0.0012
956475-91-5*0
(Dimethylamino)methyl anion CN(C)[CH2-]189.8165.6± 3.3kJ/mol58.1029 ±
0.0025
125231-49-4*0
2-Cyclopropyn-1-ylidene C1=C=C=1898.9905.8± 1.6kJ/mol36.0321 ±
0.0024
102508-15-6*0
Oxonium [OH3+]-285.830± 0.026kJ/mol19.02267 ±
0.00037
13968-08-6*800
Ethane anion C[CH3-]41.926.6± 4.4kJ/mol30.0696 ±
0.0017
54064-82-3*0
Cyclopentadienide [CH-]1C=CC=C1100.187.1± 1.1kJ/mol65.0937 ±
0.0040
12127-83-2*0
Nitrato O=[N+](O)O1290.611285.90± 0.86kJ/mol62.00439 ±
0.00090
133057-96-2*0
Cyanogen N#CC#N273.92289.16± 0.43kJ/mol52.0349 ±
0.0016
460-19-5*500
Peroxychlorous acid O=ClOO102.396.2± 3.7kJ/mol84.4588 ±
0.0013
177778-92-6*3
Cyclopropane C1CC141.4135.73± 0.54kJ/mol42.0797 ±
0.0024
75-19-4*500
trans-Cycloheptene C1CCC=CCC1141.6103.5± 1.9kJ/mol96.1702 ±
0.0057
45509-99-7*0
Methanediol C(O)O-379.37-392.76± 0.93kJ/mol48.0413 ±
0.0010
463-57-0*0
Imidogen [NH]358.74358.78± 0.17kJ/mol15.014680 ±
0.000099
13774-92-0*1
Isocyanogen chloride anion ClN=[C-]102.8107.2± 3.9kJ/mol61.4707 ±
0.0012
923019-39-0*0
Isocyanogen anion [C-]#[N]C#N385.5387.6± 3.4kJ/mol52.0354 ±
0.0016
*83951-85-3*0
Trioxodinitrate anion O=N-[N](=O)[O-]-104.3-107.5± 1.9kJ/mol76.01223 ±
0.00091
194856-62-7*0
Bromoform C(Br)(Br)Br2.8± 1.2kJ/mol252.7306 ±
0.0031
75-25-2*590
Nitrogen atom [N]700.554702.457± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*2
Water anion [H][O-][H]-50.1-53.0± 4.3kJ/mol18.01583 ±
0.00033
12259-30-2*0
Cyanogen bromide cation Br[C+]#N1331.21324.9± 1.1kJ/mol105.9209 ±
0.0013
34749-77-4*0
Isofulminic acid cation [OH+][N+]#[C-]1377.01374.9± 2.9kJ/mol43.02423 ±
0.00086
117800-60-9*0
Diisocyanogen anion [C-]#[N+][N]#[C-]456.3461.9± 3.7kJ/mol52.0354 ±
0.0016
*78800-22-3*0
Diisocyanogen cation [C]#[N+][N+]#[C-]1824.81827.9± 3.3kJ/mol52.0343 ±
0.0016
*78800-21-2*0
Phenol cation c1ccc(cc1)[OH+]746.18727.39± 0.65kJ/mol94.1107 ±
0.0048
40932-22-7*0
Phenol anion c1ccc(cc1)[OH-]22.87.9± 4.9kJ/mol94.1118 ±
0.0048
38752-11-3*0
Difluoromethane C(F)F-468.68± 0.36kJ/mol52.02339 ±
0.00081
75-10-5*590
Formylimidogen C(=O)[N]245.2242.1± 4.6kJ/mol43.02478 ±
0.00086
42288-92-6*1
Diazoethenylidene cation [N]=[N]=C=[C+]1771.21773.2± 3.5kJ/mol52.0343 ±
0.0016
*130760-10-0*0
Peroxyhypochlorous acid anion OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*0
Diazoethenylidene anion [N]=[N]=C=[C-]529.7532.3± 3.5kJ/mol52.0354 ±
0.0016
*130760-11-1*0
Difluorodioxidane anion FO[O-]F-251.-251.± 28.kJ/mol69.99615 ±
0.00060
*7783-45-1*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-]-60.2-77.9± 1.2kJ/mol106.1225 ±
0.0056
34473-57-9*0
3H-diazirin-3-ylidene-methylene [C]=C1N=N1837.3839.9± 2.4kJ/mol52.0349 ±
0.0016
204253-88-3*0
Carbon atom [C]2.3911.863± 0.044kJ/mol12.01070 ±
0.00080
7440-44-0*501
Propylidene anion CC[CH-]300.8286.6± 3.3kJ/mol42.0803 ±
0.0024
*121408-55-7*0
Imidogen [NH]509.33509.38± 0.18kJ/mol15.014680 ±
0.000099
13774-92-0*2
Ethenol C=CO-112.77-123.20± 0.66kJ/mol44.0526 ±
0.0017
557-75-5*0
Diazene anion N=[NH-]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
100429-75-2*0
Formic acid cation [CH+](=O)O721.88715.34± 0.26kJ/mol46.0248 ±
0.0010
50614-05-6*0
Vinyl alcohol cation C=C[OH+]778.9767.9± 1.3kJ/mol44.0520 ±
0.0017
57239-63-1*0
Formic acid anion [CH-](=O)O-256.2-262.3± 1.8kJ/mol46.0259 ±
0.0010
19066-82-1*0
Oxide [O--]651.653.± 15.kJ/mol16.00050 ±
0.00030
16833-27-5*0
COC vdW [C]=O.[C]589.7598.5± 1.6kJ/mol40.0208 ±
0.0016
*12071-24-8*0
1,2-Butadiene CC=C=C137.56138.61± 0.68kJ/mol54.0904 ±
0.0032
590-19-2*500
Ethylidene [CH]C361.30354.31± 0.75kJ/mol28.0532 ±
0.0016
4218-50-2*0
Diazanide N[NH-]249.4239.3± 3.1kJ/mol31.03785 ±
0.00025
25415-88-7*0
Hydrobromate ion [BrH-]-5.9-12.4± 4.3kJ/mol80.9125 ±
0.0010
85532-97-4*0
Difluorodioxidanium FO[O+]F1283.61280.0± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*0
Methane anion [CH4-]27.319.4± 5.1kJ/mol16.04301 ±
0.00085
27680-53-1*0
Water O-286.304-292.745± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*509
Nitrosodioxaziridine O=NN1OO1415.3409.5± 2.8kJ/mol76.01168 ±
0.00091
132871-99-9*3
Hydrogen peroxide cation O[OH+]897.25890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*12
Hydrogen peroxide OO-190.76± 0.30kJ/mol34.01468 ±
0.00062
7722-84-1*800
Cyanic acid cation [OH+]C#N1135.71133.2± 2.9kJ/mol43.02423 ±
0.00086
59780-31-3*0
Hydroxyaminylium [NH+]O1019.61012.4± 2.5kJ/mol32.02147 ±
0.00034
66097-71-0*0
Dioxodiazoxane O=NON=O93.088.1± 1.3kJ/mol76.01168 ±
0.00091
122413-35-8*0
Diazene anion N=[NH-]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
100429-75-2*1
Chlorine pentafluoride cation F[Cl+](F)(F)(F)F1005.8996.8± 3.3kJ/mol130.44417 ±
0.00090
478167-78-1*0
Diazene cation N=[NH+]1132.471125.53± 0.66kJ/mol30.02881 ±
0.00020
76986-17-9*1
Nitrogen sesquioxide cation O=N-[N+](=O)[O]1027.61023.7± 4.8kJ/mol76.01113 ±
0.00091
*10544-73-7*0
Acetone enol C=C(O)C-151.8-168.7± 1.1kJ/mol58.0791 ±
0.0025
29456-04-0*0
Hydrogen isocyanide anion [C-]=N191.44191.62± 0.36kJ/mol27.02593 ±
0.00081
96913-22-3*0
Aminomethylidyne anion [C-]N481.6478.0± 3.2kJ/mol28.03387 ±
0.00082
96808-04-7*1
C=O-C cation [C]=[O+][C]1585.81592.9± 2.7kJ/mol40.0203 ±
0.0016
83483-98-1*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]657.4653.8± 2.2kJ/mol39.0559 ±
0.0024
84654-90-0*12
Nitrosodioxaziridine O=NN1OO1413.6408.2± 1.8kJ/mol76.01168 ±
0.00091
132871-99-9*0
Hydrogen peroxide cation O[OH+]897.23890.25± 0.51kJ/mol34.01413 ±
0.00062
12325-10-9*0
(Formyloxy)methyl O=CO[CH2]-151.9-160.0± 1.3kJ/mol59.0440 ±
0.0017
3122-12-1*0
Chlorine chlorite ClO[Cl]=O168.6166.4± 1.3kJ/mol102.9042 ±
0.0019
105206-44-8*0
Pentachloroethylium C(Cl)(Cl)(Cl)[C+](Cl)Cl836.1834.5± 3.3kJ/mol201.2844 ±
0.0048
*7094-17-9*0
Methyl nitrite CON=O-52.54-64.50± 0.90kJ/mol61.0401 ±
0.0010
624-91-9*1
Methyl nitrite CON=O-88.89± 0.56kJ/mol61.0401 ±
0.0010
624-91-9*500
1,2-Dibromoethene C(Br)=CBr121.0100.8± 2.1kJ/mol185.8453 ±
0.0026
540-49-8*0
Oxiranylium C1[CH+]O1901.1893.2± 1.5kJ/mol43.0441 ±
0.0016
57789-76-1*0
Hydroxyformyl O[C]=O-181.09-183.63± 0.46kJ/mol45.0174 ±
0.0010
2564-86-5*0
Hydroxyformyl anion [C-](=O)O-319.46-321.32± 0.59kJ/mol45.0180 ±
0.0010
78944-70-4*0
Cyanic acid anion [OH-]C#N-9.2-9.6± 3.1kJ/mol43.02533 ±
0.00086
58199-47-6*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
Nitrosyl nitrite anion O=NON=[O-]-103.1-106.2± 2.8kJ/mol76.01223 ±
0.00091
*122413-35-8*0
Methylaminyliumyl C[N+]1388.41382.1± 2.6kJ/mol29.04071 ±
0.00083
56924-51-7*0
Oxiranyl anion C1[CH-]O1121.1113.2± 1.6kJ/mol43.0452 ±
0.0016
72722-59-9*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
Water dimer cation O.[OH2+]556.8546.4± 3.0kJ/mol36.03001 ±
0.00066
158061-35-9*0
Carboxymethyl [CH2]C(=O)O-227.4-237.3± 1.2kJ/mol59.0440 ±
0.0017
2887-46-9*0
Perchloric acid cation O[Cl+](=O)(=O)=O1191.81182.2± 3.5kJ/mol100.4577 ±
0.0015
91712-47-9*0
Nitrous acid anion O[N-]=O-105.85-109.33± 0.78kJ/mol47.01403 ±
0.00061
256393-36-9*0
Oxonium [OH3+]605.90599.09± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*1
2-Methoxy-2-oxoethyl [CH2]C(=O)OC-203.4-218.6± 1.6kJ/mol73.0706 ±
0.0025
54668-31-4*0
Oxirene C1=CO1273.18271.02± 0.92kJ/mol42.0367 ±
0.0016
157-18-6*0
Trioxidaniumyl O[O+]O925.4916.5± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*0
1,1-Dibromoethane CC(Br)Br-67.3± 1.3kJ/mol187.8612 ±
0.0026
557-91-5*500
Oxoniumyl ion [H][O+][H]978.716975.565± 0.028kJ/mol18.01473 ±
0.00033
56583-62-1*2
1-Propen-1-yl-3-ylidene [CH]C=[CH]666.4662.9± 2.2kJ/mol39.0559 ±
0.0024
84654-90-0*13
Pentachloroethanide C(Cl)(Cl)(Cl)[C-](Cl)Cl-283.7-282.3± 3.9kJ/mol201.2854 ±
0.0048
263019-83-6*0
Chlorine pentafluoride anion F[Cl-](F)(F)(F)F-619.3-622.7± 4.4kJ/mol130.44526 ±
0.00090
184851-42-1*0
1-Propen-1-yl-3-ylidene [CH]C=[CH]699.9697.0± 3.5kJ/mol39.0559 ±
0.0024
84654-90-0*2
Fluorosyl fluoride cation FF[O+]1413.01413.4± 3.5kJ/mol53.99566 ±
0.00030
*86825-50-5*0
Hydroperoxonium [OH2+]O738.1727.8± 1.2kJ/mol35.02207 ±
0.00064
70850-26-9*0
Oxirene C1=CO1387.9384.5± 1.4kJ/mol42.0367 ±
0.0016
157-18-6*1
Carbonylmethyloxonium CO[C+]=O561.5553.2± 3.2kJ/mol59.0435 ±
0.0017
24434-00-2*0
Hydrogen peroxide OO-129.459-135.466± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*1
(Acetyloxy)methyl CC(=O)O[CH2]-200.7-214.5± 1.6kJ/mol73.0706 ±
0.0025
2887-49-2*0
Isocyanogen bromide cation BrN=[C+]1469.91464.1± 5.9kJ/mol105.9209 ±
0.0013
238754-53-5*0
Krypton dication [Kr++]3701.1243701.124± 0.013kJ/mol83.7989 ±
0.1000
18469-91-5*0
Dinitrogen anion N#[N-]192.5192.5± 1.7kJ/mol28.01403 ±
0.00014
12185-02-3*0
Xenon dication [Xe++]3194.143194.14± 0.36kJ/mol131.2889 ±
0.0200
14066-95-6*0
Methoxyoxomethyl CO[C]=O-152.5-160.1± 1.5kJ/mol59.0440 ±
0.0017
16481-04-2*0
Chloroethane CCCl-134.29-135.91± 0.27kJ/mol64.5138 ±
0.0019
75-00-3*500
Diazene cation N=[NH+]1132.471125.81± 0.66kJ/mol30.02881 ±
0.00020
76986-17-9*0
3-Buten-2-one CC(=O)C=C-95.56-111.10± 0.87kJ/mol70.0898 ±
0.0032
78-94-4*0
mu-Oxodioxodinitrogen O=NO[N+]=O984.0981.0± 3.2kJ/mol76.01113 ±
0.00091
87950-63-8*1
3-Buten-2-one CC(=O)C=C-94.0-110.0± 1.6kJ/mol70.0898 ±
0.0032
78-94-4*2
Trihydrogen [H]1[H][H]1254.5250.7± 1.2kJ/mol3.02382 ±
0.00021
12184-91-7*200
1,3-Butadien-2-ol C=C(O)C=C-48.4-64.7± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*12
Methoxyoxomethyl CO[C]=O-151.7-160.7± 2.2kJ/mol59.0440 ±
0.0017
16481-04-2*2
1,3-Butadien-2-ol C=C(O)C=C-38.3-54.7± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*22
Hydrodioxonitrogen cation [NH+](=O)[O]1129.71123.1± 3.2kJ/mol47.01293 ±
0.00061
252986-76-8*0
1,3-Butadien-2-ol C=C(O)C=C-43.1-59.1± 2.3kJ/mol70.0898 ±
0.0032
59120-04-6*2
1,3-Butadien-2-ol C=C(O)C=C-53.8-68.7± 1.6kJ/mol70.0898 ±
0.0032
59120-04-6*0
Ethynol cation C#[C+]O1064.01061.4± 3.0kJ/mol42.0361 ±
0.0016
84005-02-7*0
Hydrogen peroxide cation O[OH+]931.01924.12± 0.98kJ/mol34.01413 ±
0.00062
12325-10-9*21
1-Propen-1-yl-3-ylidene [CH]C=[CH]657.4654.0± 1.5kJ/mol39.0559 ±
0.0024
84654-90-0*0
1,2-Dichloroethene C(Cl)=CCl3.46-1.86± 0.54kJ/mol96.9427 ±
0.0024
540-59-0*0
Hydrodioxonitrate [NH](=O)[O-]-62.3-68.8± 3.3kJ/mol47.01403 ±
0.00061
61508-71-2*0
Methoxyoxomethyl CO[C]=O-151.6-159.7± 2.2kJ/mol59.0440 ±
0.0017
16481-04-2*3
1,2-Difluoroethene C(F)=CF-302.90-308.99± 0.90kJ/mol64.0341 ±
0.0016
1691-13-0*0
1,2-Propadien-1-one anion C=C=C=[O-]49.548.3± 3.1kJ/mol54.0479 ±
0.0024
159171-62-7*0
Dioxymethylene [CH]O[O]341.8339.8± 3.0kJ/mol45.0174 ±
0.0010
438586-67-5*0
Ethynol anion C#[C-]O163.7165.2± 3.3kJ/mol42.0372 ±
0.0016
864971-50-6*0
Hydroxyamidogen [NH]O101.594.7± 1.1kJ/mol32.02202 ±
0.00034
13940-32-4*0
2-Cyclopropen-1-one cation O=[C+]1C=C11078.51075.4± 2.0kJ/mol54.0468 ±
0.0024
100815-68-7*0
2-Hydroxyethylium [CH2+]CO1019.01006.9± 1.5kJ/mol45.0600 ±
0.0017
38607-31-7*0
Ethynol C#CO95.4792.99± 0.94kJ/mol42.0367 ±
0.0016
32038-79-2*0
Diiodine cation I[I+]963.523960.408± 0.018kJ/mol253.808391 ±
0.000060
28712-14-3*0
Dichloromethylene [C](Cl)Cl229.51230.69± 0.64kJ/mol82.9161 ±
0.0020
1605-72-7*0
Cyanic fluoride cation F[C+]#N1294.51294.9± 1.1kJ/mol45.01529 ±
0.00080
62532-69-8*0
Isourea NC(=N)O-156.2-172.8± 2.6kJ/mol60.05534 ±
0.00091
4744-36-9*0
Peroxyformate C(=O)O[O-]-340.96-346.40± 0.96kJ/mol61.0174 ±
0.0012
104960-05-6*0
O--HH Complex [H][H].[O]247.2248.2± 2.0kJ/mol18.01528 ±
0.00033
*7732-18-5*102
Carbamoyl anion [NH2-]=C=O-81.7-87.6± 3.1kJ/mol44.03327 ±
0.00087
78944-69-1*0
Isocyanic fluoride cation FN=[C+]1618.41619.0± 4.0kJ/mol45.01529 ±
0.00080
*16992-26-0*0
Iodine monochloride ICl-36.511-35.537± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*500
1-Methoxyethenol C=C(O)OC-284.8-303.3± 1.7kJ/mol74.0785 ±
0.0025
4453-91-2*0
Cyanic fluoride anion FC#[N-]-20.4-18.4± 2.9kJ/mol45.01639 ±
0.00080
34507-50-1*0
Formaldoxime C=NO30.720.2± 1.4kJ/mol45.04066 ±
0.00088
75-17-2*0
Difluorovinylidene anion [C-]=C(F)F-88.2-87.1± 2.3kJ/mol62.0188 ±
0.0016
107693-92-5*0
Trihydrogen [H]1[H][H]1745.878743.199± 0.062kJ/mol3.02382 ±
0.00021
12184-91-7*0
Hydrogen cyanide anion [CH-]#N129.511129.033± 0.090kJ/mol27.02593 ±
0.00081
12334-27-9*0
Dibromovinylidene [C]=C(Br)Br510.0498.9± 4.1kJ/mol183.8294 ±
0.0026
261771-36-2*0
Fluorovinylidene [C]=CF298.9300.1± 3.1kJ/mol44.0277 ±
0.0016
70302-00-0*0
Tetraoxidanyl OOO[O]2.00.2± 3.0kJ/mol65.0055 ±
0.0012
69696-93-1*0
Ethynol C#CO406.5403.3± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*12
Hypochloroperoxoous acid, hydroxy ester OOOCl49.142.3± 1.9kJ/mol84.4588 ±
0.0013
928652-99-7*0
Dioxohydrazine O=NN=O192.2188.7± 1.8kJ/mol60.01228 ±
0.00062
16824-89-8*1
Nitrosyl nitrate O=NO[N+](=O)[O-]48.340.4± 1.8kJ/mol92.0111 ±
0.0012
15969-55-8*0
Oxoiodonium I[O+]1066.11064.1± 1.9kJ/mol142.90332 ±
0.00030
81182-81-2*0
Isoformyl anion [C][O].[H-]55.758.4± 1.8kJ/mol29.01859 ±
0.00086
81747-63-9*0
Chlorine atom [Cl]130.176131.783± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*2
Iminomethyl [CH]=N275.82272.22± 0.71kJ/mol28.03332 ±
0.00082
15691-95-9*0
Fluorine atom [F]82.09383.878± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*2
Bromovinylidene [C]=CBr466.1460.1± 3.8kJ/mol104.9333 ±
0.0019
161957-27-3*0
1-Cyanoethylidene C[C]C#N437.6433.9± 1.5kJ/mol53.0627 ±
0.0024
498544-34-6*0
Ethynol C#CO409.5406.4± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*13
Difluorophosgene anion C(F)(F)=[O-]-602.3-604.2± 3.3kJ/mol66.00745 ±
0.00085
474815-26-4*0
Water O-286.304-285.832± 0.026kJ/mol18.01528 ±
0.00033
7732-18-5*499
Chloromethylene [CH]Cl320.26320.55± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*0
Bromine atom [Br]161.998155.936± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*2
Methoxyethene C=COC-89.0-106.3± 1.1kJ/mol58.0791 ±
0.0025
107-25-5*0
Hydroperoxyimidogen OO[N]111.8108.9± 2.8kJ/mol47.01348 ±
0.00061
877456-58-1*2
3-Imino-2-propen-1-ylidene [CH]C=C=N530.7526.3± 1.2kJ/mol53.0627 ±
0.0024
916765-05-4*0
Chlorous acid anion O[Cl-]=O-154.3-156.2± 3.3kJ/mol68.4600 ±
0.0011
99559-66-7*0
3-Imino-2-propen-1-ylidene [CH]C=C=N571.8567.0± 1.6kJ/mol53.0627 ±
0.0024
916765-05-4*2
Hydroxymethylene cation [CH+]O971.9968.3± 1.4kJ/mol30.02543 ±
0.00087
135395-06-1*0
Methoxyethene C=COC-81.6-98.7± 2.4kJ/mol58.0791 ±
0.0025
107-25-5*1
Diazene N=N207.10199.96± 0.44kJ/mol30.02936 ±
0.00020
3618-05-1*0
Ethoxyethene C=COCC-117.4-135.9± 1.5kJ/mol72.1057 ±
0.0033
109-92-2*0
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]600.6596.3± 1.2kJ/mol53.0627 ±
0.0024
123416-74-0*0
Cyanogen iodide cation I[C+]#N1271.51271.3± 1.6kJ/mol152.92136 ±
0.00080
34749-78-5*0
2-(Methylidyneamino)ethenyl [CH]=CN=[CH]634.4630.4± 1.6kJ/mol53.0627 ±
0.0024
123416-74-0*2
Fluoro(fluorooxy)methylene F[C]OF-134.8-136.0± 1.4kJ/mol66.00691 ±
0.00085
479587-30-9*0
Hydrazoic acid N=[N+]=[N-]261.44± 0.65kJ/mol43.02816 ±
0.00022
7782-79-8*500
Methylaminyliumyl C[N+]1423.21416.3± 2.6kJ/mol29.04071 ±
0.00083
56924-51-7*2
Ethynol C#CO455.6452.3± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*14
Dioxohydrazine O=NN=O172.89171.12± 0.14kJ/mol60.01228 ±
0.00062
16824-89-8*0
Ethoxyethene C=COCC-111.0-134.8± 2.3kJ/mol72.1057 ±
0.0033
109-92-2*21
Hydrazoic acid anion N=[N]=[N-]309.0303.1± 2.4kJ/mol43.02871 ±
0.00022
203264-98-6*0
Ethoxyethene C=COCC-110.4-132.6± 2.6kJ/mol72.1057 ±
0.0033
109-92-2*1
Isocyanomethane C[N+]#[C-]145.9± 2.2kJ/mol41.0520 ±
0.0016
593-75-9*500
Diazene N=N207.10199.96± 0.44kJ/mol30.02936 ±
0.00020
3618-05-1*1
Hydroxymethylene anion [CH-]O147.1144.2± 1.6kJ/mol30.02653 ±
0.00087
207914-87-2*0
Peroxyformic acid C(=O)OO-279.26-288.40± 0.90kJ/mol62.0248 ±
0.0012
107-32-4*0
2-Hydroxyethyl [CH2]CO-13.34-26.60± 0.56kJ/mol45.0605 ±
0.0017
4422-54-2*0
2-Cyanovinyl [CH]=CC#N447.8445.4± 1.3kJ/mol52.0547 ±
0.0024
189141-20-6*0
2-Cyanovinylium [CH+]=CC#N1517.11515.1± 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
Ethynol C#CO464.2461.0± 3.2kJ/mol42.0367 ±
0.0016
32038-79-2*15
Chlorohydroxymethyl [CH](Cl)O-54.9-60.6± 1.1kJ/mol65.4787 ±
0.0012
147139-06-8*0
2-Isocyanovinyl [CH]=C[N+]#[C-]543.1541.7± 1.7kJ/mol52.0547 ±
0.0024
225798-14-1*0
Propylidyne CC[C]492.4482.8± 1.2kJ/mol41.0718 ±
0.0024
85056-54-8*0
Trihydrogen cation [H]1[H+][H]11110.5771106.695± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*1
Cyanomethyliumyl [CH+]C#N1506.71508.2± 2.3kJ/mol39.0355 ±
0.0016
34447-38-6*0
Cyanomethylene anion [CH-]C#N286.5287.0± 1.5kJ/mol39.0366 ±
0.0016
12373-24-9*0
Cyanomethylene [CH]C#N479.9483.2± 1.1kJ/mol39.0361 ±
0.0016
2612-62-6*0
Ethoxyethene C=COCC-108.4-131.6± 2.3kJ/mol72.1057 ±
0.0033
109-92-2*11
Phosgene cation C(=[O+])(Cl)Cl897.1896.0± 1.7kJ/mol98.9150 ±
0.0020
73249-38-4*0
Isocyanomethyliumyl [CH+][N+]#[C-]1505.91507.8± 3.3kJ/mol39.0355 ±
0.0016
99045-54-2*0
Isocyanomethylene anion [CH-][N+]#[C-]400.5401.2± 2.1kJ/mol39.0366 ±
0.0016
144141-01-5*0
Isocyanomethylene [CH][N+]#[C-]582.3584.5± 1.7kJ/mol39.0361 ±
0.0016
78694-65-2*0
Carbon atom [C]1114.9601120.106± 0.047kJ/mol12.01070 ±
0.00080
7440-44-0*3
3-Oxo-1,2-propadien-1-ylium-1-yl [C+]=C=C=O1379.91385.2± 3.9kJ/mol52.0310 ±
0.0024
151455-13-9*0
3-Oxo-1,2-propadienylidene anion [C-]=C=C=O223.9229.7± 3.6kJ/mol52.0320 ±
0.0024
109292-50-4*0
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]21529.8121531.45± 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+]1393.7601391.172± 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.± 76.kJ/mol39.94855 ±
0.00100
16544-90-4*1
Argon anion [Ar-]23.23.± 76.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± 0.099kJ/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. 1.122o of the Thermochemical Network (2020); available at ATcT.anl.gov
4   Y.-C. Chang, B. Xiong, D. H. Bross, B. Ruscic, and C. Y. Ng,
A Vacuum Ultraviolet laser Pulsed Field Ionization-Photoion Study of Methane (CH4): Determination of the Appearance Energy of Methylium From Methane with Unprecedented Precision and the Resulting Impact on the Bond Dissociation Energies of CH4 and CH4+.
Phys. Chem. Chem. Phys. 19, 9592-9605 (2017) [DOI: 10.1039/c6cp08200a] (part of 2017 PCCP Hot Articles collection)
5   P. B. Changala, T. L. Nguyen, J. H. Baraban, G. B. Ellison, J. F. Stanton, D. H. Bross, and B. Ruscic,
Active Thermochemical Tables: The Adiabatic Ionization Energy of Hydrogen Peroxide.
J. Phys. Chem. A 121, 8799-8806 (2017) [DOI: 10.1021/acs.jpca.7b06221] (highlighted on the journal cover)
6   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 [6]).
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.