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

Below is a list of 0 K and 298.15 K enthalpies of formation for all 1414 species included in version 1.122d (as of 12/09/2015).
This version of ATcT results was generated from an expansion of version 1.122b [4][5] to include the enthalpies of formation of methylamine, dimethylamine and trimethylamine that were used as reference values to derive the bond dissociation energies of 20 diatomic molecules containing 3d transition metals.[6].

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

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

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



          
          
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The reaction search accepts only the preferred formula, as specified in this version of the Thermochemical Network.
For help finding the current preferred formula of a species, please refer to the species name or species formula searches above.
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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]711.407716.892± 0.048kJ/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
Chlorine atom [Cl]119.621121.302± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*0
Carbon dioxide C(=O)=O-393.109-393.475± 0.015kJ/mol44.00950 ±
0.00100
124-38-9*0
Fluorine atom [F]77.25379.359± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*0
Methane C-66.556-74.525± 0.056kJ/mol16.04246 ±
0.00085
74-82-8*0
Water O-286.308-285.836± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*500
Water O-238.938-241.842± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*0
Ethane CC-68.33-83.96± 0.13kJ/mol30.0690 ±
0.0017
74-84-0*0
Hydron [H+]1528.0841530.047± 0.000kJ/mol1.007391 ±
0.000070
12408-02-5*0
Bromine atom [Br]117.917111.855± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*0
Ethylene C=C60.9152.39± 0.12kJ/mol28.0532 ±
0.0016
74-85-1*0
Hydrogen chloride Cl-91.989-92.173± 0.0062kJ/mol36.46064 ±
0.00090
7647-01-0*0
Hydroxyl [OH]37.24237.482± 0.027kJ/mol17.00734 ±
0.00031
3352-57-6*0
Methyl [CH3]149.829146.414± 0.080kJ/mol15.03452 ±
0.00083
2229-07-4*0
Carbon monoxide [C-]#[O+]-113.802-110.522± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*0
Methanol CO-189.95-200.84± 0.15kJ/mol32.04186 ±
0.00090
67-56-1*0
Hydrogen fluoride F-272.679-272.726± 0.049kJ/mol20.006343 ±
0.000070
7664-39-3*0
Hydrogen bromide Br-27.72-35.57± 0.16kJ/mol80.9119 ±
0.0010
10035-10-6*0
Iodine atom [I]107.157106.757± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*0
Formaldehyde C=O-105.347-109.186± 0.098kJ/mol30.02598 ±
0.00087
50-00-0*0
Acetylene C#C228.83228.27± 0.13kJ/mol26.0373 ±
0.0016
74-86-2*0
Ethyl C[CH2]130.94119.87± 0.28kJ/mol29.0611 ±
0.0016
2025-56-1*0
Propane CCC-82.74-105.03± 0.19kJ/mol44.0956 ±
0.0025
74-98-6*0
Ethanol CCO-216.92-234.64± 0.21kJ/mol46.0684 ±
0.0017
64-17-5*0
Chloromethane CCl-74.17-82.10± 0.25kJ/mol50.4872 ±
0.0012
74-87-3*0
Nitric oxide [N]=O90.61691.120± 0.065kJ/mol30.00614 ±
0.00031
10102-43-9*0
Ammonia N-38.565-45.557± 0.030kJ/mol17.03056 ±
0.00022
7664-41-7*0
Hydrogen cyanide C#N129.668129.283± 0.091kJ/mol27.02538 ±
0.00081
74-90-8*0
Nitrogen dioxide O=[N]=O36.85534.048± 0.065kJ/mol46.00554 ±
0.00060
10102-44-0*0
Methyl fluoride CF-227.44-235.47± 0.24kJ/mol34.03292 ±
0.00083
593-53-3*0
Hydrogen iodide I28.64626.470± 0.036kJ/mol127.912410 ±
0.000076
10034-85-2*0
Propene CC=C34.9819.98± 0.21kJ/mol42.0797 ±
0.0024
115-07-1*0
Hydroxyde [OH-]-139.099-139.066± 0.027kJ/mol17.00789 ±
0.00031
14280-30-9*0
Hydrogen peroxide OO-129.492-135.478± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*0
Dioxidanyl O[O]15.1212.21± 0.15kJ/mol33.00674 ±
0.00060
3170-83-0*0
Methyl bromide CBr-20.18-35.58± 0.27kJ/mol94.9385 ±
0.0013
74-83-9*0
Benzene c1ccccc1100.5883.07± 0.23kJ/mol78.1118 ±
0.0048
71-43-2*0
Hypochlorous acid OCl-73.875-76.815± 0.028kJ/mol52.46004 ±
0.00095
7790-92-3*0
Acetaldehyde CC=O-154.96-165.44± 0.28kJ/mol44.0526 ±
0.0017
75-07-0*0
Dibromine BrBr45.6830.89± 0.12kJ/mol159.8080 ±
0.0020
7726-95-6*0
Fluoride [F-]-250.912-249.127± 0.048kJ/mol18.99895178 ±
0.00000050
16984-48-8*0
Tetrafluoromethane C(F)(F)(F)F-927.41-933.39± 0.26kJ/mol88.00431 ±
0.00080
75-73-0*0
Methylene [CH2]391.03391.59± 0.12kJ/mol14.02658 ±
0.00081
2465-56-7*1
Methylene [CH2]428.70429.11± 0.12kJ/mol14.02658 ±
0.00081
2465-56-7*2
Methylidyne [CH]592.81596.15± 0.11kJ/mol13.01864 ±
0.00080
3315-37-5*0
Tetrachloromethane C(Cl)(Cl)(Cl)Cl-93.50-95.67± 0.45kJ/mol153.8215 ±
0.0037
56-23-5*0
Diiodine II65.49762.417± 0.0041kJ/mol253.808940 ±
0.000060
7553-56-2*0
Formic acid C(=O)O-371.06-378.38± 0.22kJ/mol46.0254 ±
0.0010
64-18-6*1
Propyne CC#C192.82185.76± 0.25kJ/mol40.0639 ±
0.0024
74-99-7*0
Fluoroform C(F)(F)F-688.79-695.74± 0.44kJ/mol70.01385 ±
0.00080
75-46-7*0
Toluene c1ccc(cc1)C73.4450.15± 0.34kJ/mol92.1384 ±
0.0056
108-88-3*0
Oxonium [OH3+]605.84599.09± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*0
Chloride [Cl-]-228.953-227.346± 0.0021kJ/mol35.45325 ±
0.00090
16887-00-6*0
Bromide [Br-]-206.620-212.682± 0.056kJ/mol79.90455 ±
0.00100
24959-67-9*0
Ozone O=[O+][O-]144.396141.734± 0.039kJ/mol47.99820 ±
0.00090
10028-15-6*0
Hypobromous acid OBr-51.71-62.18± 0.59kJ/mol96.9113 ±
0.0010
13517-11-8*0
Methoxy C[O]28.9921.62± 0.29kJ/mol31.03392 ±
0.00088
2143-68-2*0
n-Butane CCCC-98.65-125.96± 0.26kJ/mol58.1222 ±
0.0033
106-97-8*0
Chloroethane CCCl-96.80-111.38± 0.20kJ/mol64.5138 ±
0.0019
75-00-3*0
Methylamine CN-7.01-21.72± 0.31kJ/mol31.05714 ±
0.00088
74-89-5*0
Chlorine monoxide Cl=O101.125101.716± 0.035kJ/mol51.45210 ±
0.00095
14989-30-1*0
Trifluoromethyl [C](F)(F)F-465.02-467.82± 0.49kJ/mol69.00591 ±
0.00080
2264-21-3*0
Ethylium [CH2+]1[CH2][H]1914.95902.87± 0.31kJ/mol29.0606 ±
0.0016
14936-94-8*0
Hydroxymethyl [CH2]O-10.49-16.80± 0.28kJ/mol31.03392 ±
0.00088
2597-43-5*0
Oxomethylium [CH+]=O827.804827.220± 0.098kJ/mol29.01749 ±
0.00086
17030-74-9*0
Vinyl C=[CH]301.14296.94± 0.34kJ/mol27.0452 ±
0.0016
2669-89-8*0
Imidogen [NH]358.74358.79± 0.17kJ/mol15.014680 ±
0.000099
13774-92-0*0
Allene C=C=C197.37189.89± 0.26kJ/mol40.0639 ±
0.0024
463-49-0*0
Methoxide C[O-]-122.48-130.21± 0.31kJ/mol31.03447 ±
0.00088
3315-60-4*0
Nitrilomethyl [C]#N436.71439.99± 0.15kJ/mol26.01744 ±
0.00080
2074-87-5*0
Dioxymethyl [O-]\[O+]=C111.90104.90± 0.63kJ/mol46.0254 ±
0.0010
56077-92-0*0
Difluorophosgene C(F)(F)=O-603.40-606.50± 0.48kJ/mol66.00691 ±
0.00085
353-50-4*0
Nitric acid O[N+](=O)[O-]-124.49-134.20± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*0
Ketene C=C=O-45.37-48.49± 0.13kJ/mol42.0367 ±
0.0016
463-51-4*0
Formyl [CH]=O41.42941.805± 0.098kJ/mol29.01804 ±
0.00086
2597-44-6*0
Phenol c1ccc(cc1)O-74.52-93.12± 0.68kJ/mol94.1112 ±
0.0048
108-95-2*0
Methylium [CH3+]1099.2341095.291± 0.078kJ/mol15.03397 ±
0.00083
14531-53-4*0
Hypoflorous acid OF-84.40-87.30± 0.19kJ/mol36.00574 ±
0.00031
14034-79-8*0
Iodide [I-]-187.995-188.396± 0.0021kJ/mol126.905019 ±
0.000030
20461-54-5*0
Vinyl chloride C=CCl29.4421.86± 0.31kJ/mol62.4979 ±
0.0018
75-01-4*0
Phenyl c1cccc[c]1350.19336.83± 0.56kJ/mol77.1039 ±
0.0048
2396-01-2*0
Cyanogen chloride ClC#N135.04135.73± 0.47kJ/mol61.4701 ±
0.0012
506-77-4*0
Cyanogen bromide BrC#N187.1180.5± 1.1kJ/mol105.9214 ±
0.0013
506-68-3*0
Methyl iodide CI24.4014.86± 0.18kJ/mol141.93899 ±
0.00083
74-88-4*0
Acetone CC(=O)C-199.56-216.25± 0.32kJ/mol58.0791 ±
0.0025
67-64-1*0
Oxygen atom anion [O-]105.868108.097± 0.0021kJ/mol15.99995 ±
0.00030
14337-01-0*0
Ethoxide CC[O-]-163.35-178.29± 0.53kJ/mol45.0610 ±
0.0017
16331-64-9*0
Hydrogen chloride Cl-166.454± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*834
Amidogen [NH2]188.91186.02± 0.12kJ/mol16.02262 ±
0.00016
13770-40-6*0
Trihydrogen cation [H]1[H+][H]11110.3041106.696± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*0
iso-Butane CC(C)C-106.16-134.76± 0.32kJ/mol58.1222 ±
0.0033
75-28-5*0
Dichloromethane C(Cl)Cl-87.55-94.41± 0.49kJ/mol84.9320 ±
0.0020
75-09-2*0
Tetrabromomethane C(Br)(Br)(Br)Br133.2103.5± 1.3kJ/mol331.6267 ±
0.0041
558-13-4*0
Methylene fluoride C(F)F-443.00-450.58± 0.36kJ/mol52.02339 ±
0.00081
75-10-5*0
Oxygen difluoride FOF26.8024.55± 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
2-Propynyl [CH2]C#C353.99351.43± 0.38kJ/mol39.0559 ±
0.0024
2932-78-7*0
Propynylidene [CH]=C=[CH]543.38546.38± 0.63kJ/mol38.0480 ±
0.0024
67152-18-5*1
Chloroform C(Cl)(Cl)Cl-97.43-102.34± 0.52kJ/mol119.3767 ±
0.0028
67-66-3*0
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]814.62823.58± 0.55kJ/mol36.0321 ±
0.0024
12075-35-3*0
Cyanic fluoride FC#N8.789.11± 0.71kJ/mol45.01584 ±
0.00080
1495-50-7*0
Allyl C=C[CH2]179.54167.82± 0.55kJ/mol41.0718 ±
0.0024
1981-80-2*0
1-Hydroxyethyl C[CH]O-42.00-55.43± 0.65kJ/mol45.0605 ±
0.0017
2348-46-1*1
2-Hydroxyethyl [CH2]CO-12.84-26.11± 0.63kJ/mol45.0605 ±
0.0017
4422-54-2*1
Methylperoxy CO[O]22.3112.66± 0.50kJ/mol47.0333 ±
0.0010
2143-58-0*0
Tetrafluoroethylene C(=C(F)F)(F)F-671.33-674.73± 0.58kJ/mol100.0150 ±
0.0016
116-14-3*0
Chlorine fluoride ClF-55.622-55.717± 0.055kJ/mol54.45110 ±
0.00090
7790-89-8*0
Diazynium N#[NH+]1042.541038.93± 0.68kJ/mol29.02087 ±
0.00016
12357-66-3*0
Methanimine C=N96.2588.34± 0.62kJ/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
Hydride [H-]143.264145.228± 0.000kJ/mol1.008489 ±
0.000070
12184-88-2*0
Nitrosyl hydride N=O109.93106.96± 0.11kJ/mol31.01408 ±
0.00032
14332-28-6*0
Nitrous acid N(=O)O-73.023-79.167± 0.079kJ/mol47.01348 ±
0.00061
7782-77-6*1
Ethynylene [C]=[C]820.28828.74± 0.27kJ/mol24.0214 ±
0.0016
12070-15-4*0
Ethynyl [CH][C]563.87567.99± 0.15kJ/mol25.0293 ±
0.0016
2122-48-7*0
Methyl hydroperoxide COO-115.03-127.85± 0.76kJ/mol48.0413 ±
0.0010
3031-73-0*0
iso-Propyl C[CH]C105.0588.18± 0.56kJ/mol43.0877 ±
0.0024
2025-55-0*0
Phosgene C(=O)(Cl)Cl-217.44-219.13± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*0
Fluoromethylidyne [C]F243.14246.74± 0.13kJ/mol31.00910 ±
0.00080
3889-75-6*0
Phenylium c1cccc[c+]11148.451135.67± 0.88kJ/mol77.1034 ±
0.0048
17333-73-2*0
Fluorooxidanyl [O]F110.27110.89± 0.15kJ/mol34.99780 ±
0.00030
12061-70-0*0
Hypoiodous acid OI-54.2-59.0± 3.1kJ/mol143.91181 ±
0.00031
14332-21-9*0
Methanium [CH5+]921.98911.73± 0.45kJ/mol17.04985 ±
0.00087
15135-49-6*0
Hydroxylamine NO-33.24-43.62± 0.50kJ/mol33.02996 ±
0.00037
7803-49-8*1
Oxirane C1OC1-40.01-52.55± 0.38kJ/mol44.0526 ±
0.0017
75-21-8*0
Hydroxyformyl O[C]=O-181.19-184.16± 0.50kJ/mol45.0174 ±
0.0010
2564-86-5*1
Formate C(=O)[O-]-462.90-466.55± 0.56kJ/mol45.0180 ±
0.0010
71-47-6*0
Isocyanic acid N=C=O-115.84-118.84± 0.31kJ/mol43.02478 ±
0.00086
75-13-8*0
Chlorotrifluoromethane C(F)(F)(F)Cl-704.89-710.00± 0.72kJ/mol104.4586 ±
0.0012
75-72-9*0
Bromotrifluoromethane C(F)(F)(F)Br-639.28-651.40± 0.51kJ/mol148.9099 ±
0.0013
75-63-8*0
Fluorobenzene c1ccc(cc1)F-99.10-114.77± 0.89kJ/mol96.1023 ±
0.0048
462-06-6*0
Nitromethane C[N+](=O)[O-]-60.85-74.75± 0.46kJ/mol61.0401 ±
0.0010
75-52-5*0
Chlorine dioxide O=Cl=O101.3298.85± 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]664.61667.94± 0.60kJ/mol13.01864 ±
0.00080
3315-37-5*2
Aminomethyl [CH2]N158.90149.06± 0.44kJ/mol30.04920 ±
0.00085
10507-29-6*0
Ethoxy CC[O]1.84-12.07± 0.52kJ/mol45.0605 ±
0.0017
2154-50-9*51
Cyanato N#C[O]127.03127.50± 0.35kJ/mol42.01684 ±
0.00086
22400-26-6*0
Dimethylamine CNC3.53-18.11± 0.48kJ/mol45.0837 ±
0.0017
124-40-3*0
Bromoform C(Br)(Br)Br75.249.1± 1.3kJ/mol252.7306 ±
0.0031
75-25-2*0
Hydrogen fluoride F-334.48± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*800
Bromine monoxide Br[O]131.14123.61± 0.28kJ/mol95.9034 ±
0.0010
15656-19-6*0
Hypobromite Br[O-]-96.15-103.63± 0.54kJ/mol95.9039 ±
0.0010
14380-62-2*0
Fluorodioxidanyl FO[O]26.8025.09± 0.26kJ/mol50.99720 ±
0.00060
15499-23-7*0
Peroxynitrous acid OON=O-6.10-14.54± 0.36kJ/mol63.01288 ±
0.00091
14691-52-2*3
Cyclopropane C1CC170.7753.63± 0.47kJ/mol42.0797 ±
0.0024
75-19-4*0
Propadienylidene C=C=[C]554.43555.57± 0.41kJ/mol38.0480 ±
0.0024
60731-10-4*0
1-Butene CCC=C20.86-0.09± 0.38kJ/mol56.1063 ±
0.0032
106-98-9*0
Acetyl C[C]=O-3.37-10.03± 0.36kJ/mol43.0446 ±
0.0016
3170-69-2*0
Dichloromethylene [C](Cl)Cl229.49230.67± 0.65kJ/mol82.9161 ±
0.0020
1605-72-7*2
Fluoroethane CCF-257.21-272.07± 0.38kJ/mol48.0595 ±
0.0016
353-36-6*0
Ethyl bromide CCBr-41.12-63.07± 0.26kJ/mol108.9651 ±
0.0019
74-96-4*0
Vinyl fluoride C=CF-134.62-142.43± 0.48kJ/mol46.0436 ±
0.0016
75-02-5*0
Vinyl bromide C=CBr88.7773.97± 0.61kJ/mol106.9492 ±
0.0019
593-60-2*0
2-Bromoethanol BrCCO-196.57-220.63± 0.57kJ/mol124.9645 ±
0.0019
540-51-2*0
Chlorobenzene c1ccc(cc1)Cl67.1352.17± 0.61kJ/mol112.5566 ±
0.0049
108-90-7*0
Difluorodioxidane FOOF35.2931.57± 0.41kJ/mol69.99561 ±
0.00060
7783-44-0*0
Nitrous oxide [N-]=[N+]=O85.99182.562± 0.097kJ/mol44.01288 ±
0.00033
10024-97-2*0
(E)-Diazene [H]/N=N/[H]207.09199.95± 0.44kJ/mol30.02936 ±
0.00020
15626-43-4*0
Hydroxyoxomethylium O[C+]=O600.69597.60± 0.44kJ/mol45.0169 ±
0.0010
638-71-1*0
Trioxidane OOO-81.71-90.55± 0.72kJ/mol50.01408 ±
0.00091
14699-99-1*1
Vinylium [CH+]1[CH][H]11119.151115.70± 0.59kJ/mol27.0447 ±
0.0016
14604-48-9*0
Hydroxymethylium [CH2+]O717.75709.80± 0.18kJ/mol31.03337 ±
0.00088
18682-95-6*0
Cyanogen N#CC#N308.24310.18± 0.43kJ/mol52.0349 ±
0.0016
460-19-5*0
Propyl CC[CH2]118.27100.87± 0.60kJ/mol43.0877 ±
0.0024
2143-61-5*0
Dioxidanide O[O-]-88.87-91.53± 0.35kJ/mol33.00729 ±
0.00060
14691-59-9*0
n-Butyl CCC[CH2]102.5280.02± 0.72kJ/mol57.1143 ±
0.0033
2492-36-6*0
1,3-Butadiene C=CC=C125.05110.57± 0.40kJ/mol54.0904 ±
0.0032
106-99-0*0
n-Pentane CCCCC-114.50-146.38± 0.31kJ/mol72.1488 ±
0.0041
109-66-0*0
Ethynide [CH][C-]277.42280.83± 0.18kJ/mol25.0299 ±
0.0016
29075-95-4*0
Formic acid C(=O)O-371.06-378.36± 0.22kJ/mol46.0254 ±
0.0010
64-18-6*0
2-Chloroethanol ClCCO-250.05-266.76± 0.63kJ/mol80.5132 ±
0.0019
107-07-3*0
Bromobenzene c1ccc(cc1)Br126.6104.6± 1.3kJ/mol157.0079 ±
0.0049
108-86-1*0
Benzaldehyde c1ccc(cc1)C=O-19.22-37.02± 0.92kJ/mol106.1219 ±
0.0056
100-52-7*0
Hypofluorite [O-]F-108.85-108.68± 0.48kJ/mol34.99835 ±
0.00030
12763-66-5*0
Chlorous acid OCl=O25.7520.69± 0.63kJ/mol68.4594 ±
0.0011
13898-47-0*0
Water O-285.836± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*590
Iodoxyl radical I[O]126.97125.04± 0.82kJ/mol142.90387 ±
0.00030
14696-98-1*0
Ammonium [NH4+]643.04631.73± 0.21kJ/mol18.03795 ±
0.00029
14798-03-9*0
Azanide [NH2-]114.89112.02± 0.33kJ/mol16.02317 ±
0.00016
17655-31-1*0
Hydroxyamidogen [NH]O101.694.8± 1.1kJ/mol32.02202 ±
0.00034
13940-32-4*1
Nitrate O=[N+]([O-])[O-]-300.30-306.77± 0.62kJ/mol62.00549 ±
0.00090
14797-55-8*0
Cyanogen iodide IC#N222.5222.0± 1.6kJ/mol152.92191 ±
0.00080
506-78-5*0
Formyl anion [CH-]=O11.6312.02± 0.44kJ/mol29.01859 ±
0.00086
57340-31-5*0
2-Propynylidyne C#C[C]717.94722.29± 0.81kJ/mol37.0400 ±
0.0024
53590-28-6*0
Isobutene CC(=C)C3.95-17.12± 0.43kJ/mol56.1063 ±
0.0032
115-11-7*0
Methanetetraylbisamidogen [N]=C=[N]450.41450.81± 0.68kJ/mol40.02418 ±
0.00081
2669-76-3*0
Trichloromethyl [C](Cl)(Cl)Cl71.9171.43± 0.86kJ/mol118.3688 ±
0.0028
3170-80-7*0
Chloromethylene [CH]Cl320.24320.52± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*2
Methylene bromide C(Br)Br25.54.1± 1.1kJ/mol173.8346 ±
0.0022
74-95-3*0
2-Fluoroethanol FCCO-406.6-423.9± 1.3kJ/mol64.0589 ±
0.0017
371-62-0*0
Phenide c1cccc[c-]1244.44231.01± 0.42kJ/mol77.1044 ±
0.0048
30922-78-2*0
Phenolate c1ccc(cc1)[O-]-146.09-161.56± 0.93kJ/mol93.1038 ±
0.0048
3229-70-7*0
Chloronium [H][ClH+]881.3878.2± 1.1kJ/mol37.46803 ±
0.00091
36658-55-6*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-583.82-589.70± 0.55kJ/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]452.25449.66± 0.60kJ/mol42.02022 ±
0.00021
12596-60-0*0
Trinitrogen cation [N]N=[N+]1519.411516.88± 0.89kJ/mol42.01967 ±
0.00021
12185-03-4*0
Oxonitrate anion N#[O-]87.9187.94± 0.12kJ/mol30.00669 ±
0.00031
14967-78-3*0
Carbon monoxide cation [C]#[O+]1238.3081241.588± 0.026kJ/mol28.00955 ±
0.00085
12144-04-6*0
Nitrosyl ion N#[O+]984.484984.479± 0.065kJ/mol30.00559 ±
0.00031
14452-93-8*0
Nitroxyl N[O]71.1364.52± 0.90kJ/mol32.02202 ±
0.00034
13408-29-2*0
Hydrazoic acid N=[N+]=[N-]297.90291.61± 0.49kJ/mol43.02816 ±
0.00022
7782-79-8*0
Ethanium [CH3+][H][CH3]874.39858.12± 0.62kJ/mol31.0764 ±
0.0017
24669-33-8*1
Acetylium C[C+]=O666.87659.58± 0.47kJ/mol43.0441 ±
0.0016
15762-07-9*0
Cyanide [C-]#N63.96467.250± 0.095kJ/mol26.01799 ±
0.00080
57-12-5*0
Hydroxymethylene [CH]O112.70108.93± 0.28kJ/mol30.02598 ±
0.00087
19710-56-6*1
Carbonic acid OC(=O)O-602.74-612.91± 0.79kJ/mol62.0248 ±
0.0012
463-79-6*1
Hydrogen bromide Br-120.71± 0.16kJ/mol80.9119 ±
0.0010
10035-10-6*800
n-Hexane CCCCCC-130.10-166.98± 0.34kJ/mol86.1754 ±
0.0049
110-54-3*0
1-Hydroxyethylium C[CH+]O609.13594.70± 0.39kJ/mol45.0600 ±
0.0017
18682-96-7*1
Ethoxy CC[O]6.09-8.35± 0.52kJ/mol45.0605 ±
0.0017
2154-50-9*52
Dicarbon monoxide [C]=C=O377.3381.3± 1.1kJ/mol40.0208 ±
0.0016
12071-23-7*1
Formic acid C(=O)O-354.70-361.94± 0.39kJ/mol46.0254 ±
0.0010
64-18-6*2
Formyloxidanyl C(=O)[O]-125.57-127.23± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*1
Trimethylamine CN(C)C1.16-27.69± 0.92kJ/mol59.1103 ±
0.0025
75-50-3*0
Chlorodifluoromethane C(F)(F)Cl-476.4-482.5± 1.2kJ/mol86.4681 ±
0.0012
75-45-6*0
Fluoromethylene [CH]F148.34148.62± 0.46kJ/mol32.01704 ±
0.00080
13453-52-6*2
Fluoroformyl F[C]=O-176.61-176.03± 0.39kJ/mol47.00850 ±
0.00085
1871-24-5*0
Hydrogen chloride Cl-166.993± 0.023kJ/mol36.46064 ±
0.00090
7647-01-0*800
Bromonium [H][BrH+]925.2914.5± 1.5kJ/mol81.9193 ±
0.0010
36658-54-5*0
Hydrogen peroxide cation O[OH+]896.57889.59± 0.58kJ/mol34.01413 ±
0.00062
12325-10-9*1
Hydrazine NN111.5697.41± 0.49kJ/mol32.04524 ±
0.00031
302-01-2*0
Ethylidene [CH]C361.30354.30± 0.91kJ/mol28.0532 ±
0.0016
4218-50-2*1
Vinyl anion C=[CH-]237.01232.59± 0.87kJ/mol27.0458 ±
0.0016
25012-81-1*0
Aminomethylium [CH2+]N763.55751.58± 0.66kJ/mol30.04865 ±
0.00085
488821-23-4*0
Peroxyformic acid C(=O)OO-279.8-289.1± 1.1kJ/mol62.0248 ±
0.0012
107-32-4*1
1-Methylethenyl C[C]=C262.81252.46± 0.78kJ/mol41.0718 ±
0.0024
15552-77-9*0
trans-2-Butene C/C=C/C9.24-11.32± 0.41kJ/mol56.1063 ±
0.0032
624-64-6*0
cis-2-Butene C/C=C\C13.93-7.34± 0.42kJ/mol56.1063 ±
0.0032
590-18-1*0
Cyclopentane C1CCCC1-45.04-77.61± 0.44kJ/mol70.1329 ±
0.0041
287-92-3*0
Cyclopentadiene C1C=CC=C1149.85132.73± 0.76kJ/mol66.1011 ±
0.0040
542-92-7*0
1-Hydroxyethyl C[CH]O-40.46-53.93± 0.93kJ/mol45.0605 ±
0.0017
2348-46-1*2
Protonated oxirane [OH+]1CC1725.23709.06± 0.67kJ/mol45.0600 ±
0.0017
*38607-31-7*0
Ethenol C=CO-112.76-123.95± 0.84kJ/mol44.0526 ±
0.0017
557-75-5*1
Oxoethenyl [CH]=C=O176.97178.09± 0.61kJ/mol41.0287 ±
0.0016
51095-15-9*0
Methanediol C(O)O-379.2-393.4± 1.1kJ/mol48.0413 ±
0.0010
463-57-0*1
Trioxidanide OO[O-]-120.0-123.1± 1.6kJ/mol49.00669 ±
0.00090
89965-38-8*2
Acetyl chloride CC(=O)Cl-232.68-241.55± 0.33kJ/mol78.4973 ±
0.0019
75-36-5*0
Methyl formate COC=O-344.73-357.78± 0.59kJ/mol60.0520 ±
0.0017
107-31-3*1
Chlorohydroxymethyl [CH](Cl)O-54.7-60.7± 1.1kJ/mol65.4787 ±
0.0012
147139-06-8*1
1,1-Dichloroethene C=C(Cl)Cl8.912.92± 0.51kJ/mol96.9427 ±
0.0024
75-35-4*0
Tetrachloroethene C(=C(Cl)Cl)(Cl)Cl-22.3-23.1± 1.1kJ/mol165.8322 ±
0.0039
127-18-4*0
Difluorodichloromethane C(F)(F)(Cl)Cl-490.42-495.18± 0.97kJ/mol120.9129 ±
0.0020
75-71-8*0
Fluorodichloromethane C(F)(Cl)Cl-278.7-284.0± 1.3kJ/mol102.9224 ±
0.0020
75-43-4*0
Trifluoromethylium [C+](F)(F)F409.16406.09± 0.52kJ/mol69.00536 ±
0.00080
18851-76-8*0
Fluoromethylene [CH]F210.16210.50± 0.72kJ/mol32.01704 ±
0.00080
13453-52-6*1
Formyl fluoride FC=O-378.64-382.23± 0.33kJ/mol48.01644 ±
0.00086
1493-02-3*0
Methyl nitrite CON=O-55.58-67.36± 0.45kJ/mol61.0401 ±
0.0010
624-91-9*2
Chlorine pentafluoride FCl(F)(F)(F)F-226.1-234.2± 1.7kJ/mol130.44472 ±
0.00090
13637-63-3*0
Chloro hypochlorite ClOCl79.7877.97± 0.36kJ/mol86.9048 ±
0.0018
7791-21-1*0
Chlorooxy hypochlorite ClOOCl134.55131.32± 0.56kJ/mol102.9042 ±
0.0019
12292-23-8*0
Peroxyhypochlorous acid OOCl3.93-1.34± 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± 0.0011kJ/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
Nitrogen sesquioxide O=N-[N](=O)[O]90.7186.15± 0.15kJ/mol76.01168 ±
0.00091
10544-73-7*0
Ammonium [NH4+]-133.080± 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
Ethylidene [CH]C373.69366.46± 0.98kJ/mol28.0532 ±
0.0016
4218-50-2*2
Methylamidogen C[NH]187.21176.56± 0.49kJ/mol30.04920 ±
0.00085
15622-51-2*0
Hydrogen isocyanide cation [C+]=N1353.01352.9± 1.3kJ/mol27.02483 ±
0.00081
74158-11-5*0
Prop-2-ylium C[CH+]C822.90805.64± 0.25kJ/mol43.0871 ±
0.0024
19252-53-0*0
Propargylenide C#C[CH-]434.5437.1± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*1
neo-Pentane CC(C)(C)C-134.69-167.57± 0.40kJ/mol72.1488 ±
0.0041
463-82-1*0
Dichloride Cl[Cl-]-229.8-228.7± 1.4kJ/mol70.9059 ±
0.0018
12595-89-0*0
2-Hydroxyethyl [CH2]CO-9.91-22.54± 0.91kJ/mol45.0605 ±
0.0017
4422-54-2*2
Chlorine atom cation [Cl+]1370.8061372.602± 0.0011kJ/mol35.45215 ±
0.00090
24203-47-2*0
Dimethyl ether COC-166.53-184.04± 0.45kJ/mol46.0684 ±
0.0017
115-10-6*0
Methanediol C(O)O-368.8-382.0± 1.2kJ/mol48.0413 ±
0.0010
463-57-0*2
(Methylamino)methyl CN[CH2]167.56151.10± 0.97kJ/mol44.0758 ±
0.0017
31277-24-4*0
Dimethylamidogen C[N]C173.7156.3± 1.5kJ/mol44.0758 ±
0.0017
15337-44-7*0
Bromotrichloromethane C(Cl)(Cl)(Cl)Br-32.87-42.01± 0.60kJ/mol198.2728 ±
0.0030
75-62-7*0
Chloromethylidyne [C]Cl430.42434.18± 0.67kJ/mol47.4634 ±
0.0012
3889-76-7*0
Chloromethanol ClCO-232.1-242.4± 1.2kJ/mol66.4866 ±
0.0013
15454-33-8*0
Chloromethoxy C(Cl)[O]-11.7-18.5± 1.1kJ/mol65.4787 ±
0.0012
114282-89-2*0
1,1-Dichloroethane CC(Cl)Cl-119.76-132.54± 0.51kJ/mol98.9586 ±
0.0024
75-34-3*0
1,1,1-Trichloroethane CC(Cl)(Cl)Cl-134.42-145.00± 0.52kJ/mol133.4033 ±
0.0031
71-55-6*0
Hydroperoxonium [OH2+]O738.1727.8± 1.2kJ/mol35.02207 ±
0.00064
70850-26-9*1
Tetraiodomethane C(I)(I)(I)I332.0326.9± 4.1kJ/mol519.62858 ±
0.00081
507-25-5*0
o-Benzyne C1=CC#CC=C1468.05459.13± 0.88kJ/mol76.0960 ±
0.0048
462-80-6*2
Benzyl c1ccc(cc1)[CH2]230.23211.42± 0.62kJ/mol91.1305 ±
0.0056
2154-56-5*0
Acetonyl CC(=O)[CH2]-19.17-31.88± 0.99kJ/mol57.0712 ±
0.0024
3122-07-4*0
Propionaldehyde CCC=O-171.40-186.80± 0.25kJ/mol58.0791 ±
0.0025
123-38-6*0
Bromonium [Br+]1257.7781251.715± 0.057kJ/mol79.90345 ±
0.00100
22541-56-6*0
Nitric acid O[N+](=O)[O-]-206.63± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*800
Oxoammoniumyl [NH+]=O1092.401089.47± 0.68kJ/mol31.01353 ±
0.00032
63559-87-5*0
Trioxidane OOO-72.39-80.88± 0.92kJ/mol50.01408 ±
0.00091
14699-99-1*2
Peroxynitrous acid OON=O7.570.49± 0.41kJ/mol63.01288 ±
0.00091
14691-52-2*1
Chlorodioxidanyl ClO[O]103.91102.82± 0.37kJ/mol67.4515 ±
0.0011
17376-09-9*0
Ethylidyne [C]C508.56504.86± 0.87kJ/mol27.0452 ±
0.0016
67624-57-1*0
Ethylidyne [C]C640.6636.1± 1.2kJ/mol27.0452 ±
0.0016
67624-57-1*2
Methylamidogen anion C[NH-]144.95134.12± 0.68kJ/mol30.04975 ±
0.00085
54448-39-4*0
Iminomethyl cation [NH+]#C953.3949.3± 1.4kJ/mol28.03277 ±
0.00082
196216-36-1*0
Fluoronium [H][F+][H]774.10771.16± 0.88kJ/mol21.01373 ±
0.00014
12206-67-6*2
Perchloryl O=Cl(=O)[O]191.68186.01± 0.61kJ/mol83.4509 ±
0.0013
13932-10-0*0
1-Propenyl CC=[CH]277.99267.20± 0.79kJ/mol41.0718 ±
0.0024
6067-68-1*2
Hydrogen fluoride F-321.03± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*818
1-Propynyl CC#[C]528.39526.03± 0.75kJ/mol39.0559 ±
0.0024
89342-91-6*0
Propargylenide C#C[CH-]437.0439.5± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*2
2-Propyn-1-ylium-1-ylidene C#C[C+]1598.01602.9± 1.3kJ/mol37.0395 ±
0.0024
75104-46-0*0
t-Butyl C[C](C)C75.4450.14± 0.68kJ/mol57.1143 ±
0.0033
1605-73-8*0
2-Butyne CC#CC158.96145.99± 0.59kJ/mol54.0904 ±
0.0032
503-17-3*0
1-Butyne CCC#C179.36165.77± 0.67kJ/mol54.0904 ±
0.0032
107-00-6*0
iso-Pentane CCC(C)C-119.26-153.31± 0.44kJ/mol72.1488 ±
0.0041
78-78-4*0
Isoprene CC(=C)C=C95.9775.44± 0.70kJ/mol68.1170 ±
0.0040
78-79-5*0
2-Hydroxyethyl [CH2]CO-4.9-17.4± 1.3kJ/mol45.0605 ±
0.0017
4422-54-2*3
Vinoxy C=C[O]22.4215.58± 0.77kJ/mol43.0446 ±
0.0016
6912-06-7*0
Acetyl anion C[C-]=O-44.0-49.6± 1.4kJ/mol43.0452 ±
0.0016
78944-68-0*0
Ketene C=C=O182.5177.5± 1.3kJ/mol42.0367 ±
0.0016
463-51-4*1
Water dimer O.O-491.097-499.137± 0.052kJ/mol36.03056 ±
0.00066
25655-83-8*0
Hydroxyformyl O[C]=O-174.34-177.37± 0.53kJ/mol45.0174 ±
0.0010
2564-86-5*2
Hydroxyformyl anion [C-](=O)O-319.50-322.27± 0.60kJ/mol45.0180 ±
0.0010
78944-70-4*2
2-Hydrotrioxy [O][OH][O]299.7294.0± 1.2kJ/mol49.00614 ±
0.00090
*12500-78-6*0
1-Propanol CCCO-231.44-255.28± 0.25kJ/mol60.0950 ±
0.0025
71-23-8*0
(Dimethylamino)methyl CN(C)[CH2]165.1142.0± 1.4kJ/mol58.1024 ±
0.0025
30208-47-0*0
Chloromethide [CH2-]Cl56.553.3± 2.0kJ/mol49.4798 ±
0.0012
60291-29-4*0
cis-1,2-Dichloroethene C(\Cl)=C\Cl3.46-2.54± 0.56kJ/mol96.9427 ±
0.0024
156-59-2*0
Fluorotrichloromethane C(Cl)(Cl)(Cl)F-286.4-289.6± 1.2kJ/mol137.3672 ±
0.0028
75-69-4*0
Difluoromethylene [C](F)F-193.94-193.47± 0.39kJ/mol50.00751 ±
0.00080
2154-59-8*0
Hexafluoroethane C(F)(F)(F)C(F)(F)F-1334.5-1342.8± 1.5kJ/mol138.0118 ±
0.0016
76-16-4*0
1,1-Difluoroethane CC(F)F-489.06-502.78± 0.65kJ/mol66.0500 ±
0.0016
75-37-6*0
1,1-Difluoroethene C=C(F)F-343.60-350.66± 0.94kJ/mol64.0341 ±
0.0016
75-38-7*0
Tricarbon dioxide O=C=C=C=O-94.8-92.7± 1.4kJ/mol68.0309 ±
0.0025
504-64-3*0
Ethylbenzene c1ccc(cc1)CC58.1829.72± 0.55kJ/mol106.1650 ±
0.0064
100-41-4*0
Phenylethene c1ccc(cc1)C=C169.66148.33± 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
Difluoride F[F-]-291.0-290.2± 1.5kJ/mol37.9973550 ±
0.0000010
12184-85-9*0
Acetonate CC(=[O-])[CH2]-188.5-202.1± 1.1kJ/mol57.0717 ±
0.0024
24262-31-5*0
Bromine monochloride BrCl21.88214.439± 0.060kJ/mol115.3567 ±
0.0013
13863-41-7*0
Iodine monobromide IBr49.71840.771± 0.067kJ/mol206.8085 ±
0.0010
7789-33-5*0
Nitrosyl nitrite O=NON=O93.087.8± 1.3kJ/mol76.01168 ±
0.00091
122413-35-8*1
Nitroxyl O=[N+]([O-])[O]79.3874.13± 0.19kJ/mol62.00494 ±
0.00090
12033-49-7*0
Isodiazene [N]N307.52300.44± 0.75kJ/mol30.02936 ±
0.00020
28647-38-3*0
Nitryl hydride [NH+](=O)[O-]-37.2-44.1± 1.5kJ/mol47.01348 ±
0.00061
90266-90-3*0
Carbon atom cation [C+]1797.8601803.458± 0.048kJ/mol12.01015 ±
0.00080
14067-05-1*0
Dioxygen anion O=[O-]-43.36-42.72± 0.17kJ/mol31.99935 ±
0.00060
11062-77-4*0
Methanide [CH3-]141.08137.63± 0.30kJ/mol15.03507 ±
0.00083
15194-58-8*0
Methyliumyl [CH2+]1393.171394.03± 0.12kJ/mol14.02603 ±
0.00081
15091-72-2*0
Methyliumylidene [CH+]1619.7651623.108± 0.056kJ/mol13.01809 ±
0.00080
24361-82-8*0
Methylidyne anion [CH-]474.97478.30± 0.85kJ/mol13.01919 ±
0.00080
28604-54-8*0
Trioxygen difluoride FOOOF112.5106.7± 1.2kJ/mol85.99501 ±
0.00090
16829-28-0*1
Ethanide C[CH2-]152.9141.8± 1.2kJ/mol29.0616 ±
0.0016
25013-41-6*0
Oxidanylium [OH+]1293.1821293.211± 0.035kJ/mol17.00679 ±
0.00031
12259-29-9*0
Methyleneamidogen C=[N]241.95238.30± 0.67kJ/mol28.03332 ±
0.00082
15845-29-1*0
(E)-Iminomethyl [CH]=N275.83272.22± 0.71kJ/mol28.03332 ±
0.00082
54980-10-8*0
Nitrilomethylium [C+]#N1778.01781.5± 1.2kJ/mol26.01689 ±
0.00080
12539-57-0*0
Fluoroacetylene C#CF104.89105.60± 0.41kJ/mol44.0277 ±
0.0016
2713-09-9*0
Methanol cation [CH3+]O856.90846.58± 0.32kJ/mol32.04131 ±
0.00090
12538-91-9*0
Methyloxonium CO.[H+]589.8575.6± 1.2kJ/mol33.04925 ±
0.00092
17836-08-7*0
Hydroxymethylene [CH]O219.3216.4± 1.1kJ/mol30.02598 ±
0.00087
19710-56-6*3
Aquacarbon [C].O442.7441.1± 1.3kJ/mol30.02598 ±
0.00087
81434-73-3*1
Hydroxyde [OH-]-230.020± 0.029kJ/mol17.00789 ±
0.00031
14280-30-9*800
Carbonic acid OC(=O)O-596.87-606.98± 0.85kJ/mol62.0248 ±
0.0012
463-79-6*2
Carbonic acid OC(=O)O-561.64-570.49± 0.98kJ/mol62.0248 ±
0.0012
463-79-6*3
1,2-Propadienyl anion C=C=[CH-]265.65262.44± 0.73kJ/mol39.0565 ±
0.0024
64066-06-4*0
1-Propynyl anion CC#[C-]264.45260.98± 0.76kJ/mol39.0565 ±
0.0024
36147-87-2*0
Chloric acid OCl(=O)=O2.2-4.9± 1.6kJ/mol84.4588 ±
0.0013
7790-93-4*0
Chlorate O=Cl(=O)[O-]-207.4-212.9± 1.6kJ/mol83.4514 ±
0.0013
14866-68-3*0
Hypochloroperoxoous acid, hydroxy ester OOOCl49.242.2± 1.9kJ/mol84.4588 ±
0.0013
928652-99-7*1
Cyclohexane C1CCCCC1-83.64-123.20± 0.36kJ/mol84.1595 ±
0.0049
110-82-7*0
Ozonide O=[O-]=O-58.48-60.84± 0.21kJ/mol47.99875 ±
0.00090
12596-80-4*0
2-Hydroxyethylium [CH2+]CO1019.21006.3± 1.7kJ/mol45.0600 ±
0.0017
38607-31-7*3
Ethynol C#CO95.393.2± 1.5kJ/mol42.0367 ±
0.0016
32038-79-2*0
Hydroxyformyl anion [C-](=O)O-313.69-315.63± 0.61kJ/mol45.0180 ±
0.0010
78944-70-4*1
2-Propanol CC(O)C-248.87-272.97± 0.32kJ/mol60.0950 ±
0.0025
67-63-0*0
Acetic acid CC(=O)O-418.51-432.63± 0.52kJ/mol60.0520 ±
0.0017
64-19-7*1
Ethylene glycol OCCO-369.81-389.44± 0.49kJ/mol62.0678 ±
0.0018
107-21-1*0
(Methylamino)methyl cation CN[CH2+]728.81710.19± 0.99kJ/mol44.0752 ±
0.0017
*31277-24-4*0
Dichloromethyl [CH](Cl)Cl92.0290.11± 0.88kJ/mol83.9240 ±
0.0020
3474-12-2*0
Chloromethyl [CH2]Cl118.47115.39± 0.87kJ/mol49.4793 ±
0.0012
6806-86-6*0
Methyl hypochlorite COCl-52.9-62.9± 1.4kJ/mol66.4866 ±
0.0013
593-78-2*0
1,2-Dichloroethane C(Cl)CCl-118.48-130.43± 0.54kJ/mol98.9586 ±
0.0024
107-06-2*0
Dichloroacetylene ClC#CCl230.08233.39± 0.98kJ/mol94.9268 ±
0.0024
7572-29-4*0
Fluorochloromethane C(F)Cl-256.3-263.5± 1.3kJ/mol68.4777 ±
0.0012
593-70-4*0
Trioxidanyl OO[O]25.3123.32± 0.13kJ/mol49.00614 ±
0.00090
12500-78-6*1
Formyl chloride C(=O)Cl-179.97-183.18± 0.77kJ/mol64.4707 ±
0.0012
2565-30-2*0
Chloroformyl Cl[C]=O-21.91-20.52± 0.49kJ/mol63.4628 ±
0.0012
2602-42-8*0
1,3-Butadiyne C#CC#C458.35460.07± 0.82kJ/mol50.0587 ±
0.0032
460-12-8*0
o-Benzyne anion C1=CC#CC=[CH-]1413.73404.63± 0.97kJ/mol76.0965 ±
0.0048
100569-88-8*0
Oxygen atom [O]436.666438.523± 0.0021kJ/mol15.99940 ±
0.00030
17778-80-2*2
Benzylide c1ccc(cc1)[CH2-]142.01123.10± 0.45kJ/mol91.1310 ±
0.0056
18860-15-6*0
Fluorobenzene cation c1ccc(cc1)[F+]788.88773.86± 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-]138.8129.4± 1.2kJ/mol60.0321 ±
0.0010
16787-85-2*0
Hydrogen chloride Cl-165.759± 0.025kJ/mol36.46064 ±
0.00090
7647-01-0*828
Dinitrogen pentoxide O=[N+]([O-])O[N+](=O)[O-]24.4114.84± 0.35kJ/mol108.0105 ±
0.0015
10102-03-1*0
Fluoride [F-]-334.48± 0.16kJ/mol18.99895178 ±
0.00000050
16984-48-8*800
Diazenyl [N]=N252.17249.25± 0.47kJ/mol29.02142 ±
0.00016
36882-13-0*0
Trioxidanylium OO[O+]1070.61064.3± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*1
Peroxynitric acid [N+](=O)([O-])OO-42.6-53.0± 1.3kJ/mol79.0123 ±
0.0012
26404-66-0*0
Nitrosyl chloride ClN=O54.45052.548± 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+]1150.831144.45± 0.25kJ/mol16.04191 ±
0.00085
20741-88-2*0
Methylene anion [CH2-]328.49328.92± 0.50kJ/mol14.02713 ±
0.00081
50928-07-9*0
Oxoniumyl ion [H][O+][H]978.464975.561± 0.029kJ/mol18.01473 ±
0.00033
56583-62-1*0
Ethanium [CH3+][H][CH3]874.39858.15± 0.62kJ/mol31.0764 ±
0.0017
24669-33-8*0
Acetylene cation C#[CH+]1328.841328.18± 0.13kJ/mol26.0367 ±
0.0016
25641-79-6*0
Vinylidene [C]=C411.25412.17± 0.33kJ/mol26.0373 ±
0.0016
2143-69-3*0
1-Ethylium-1-ylidene [C+]C1329.61328.2± 1.2kJ/mol27.0447 ±
0.0016
78949-84-5*0
Ethylidyne anion [C-]C456.4452.4± 1.4kJ/mol27.0458 ±
0.0016
117768-70-4*0
Vinylidene anion [C-]=C364.14363.96± 0.63kJ/mol26.0378 ±
0.0016
66295-36-1*0
Ethynylium [CH][C+]1687.591690.92± 0.16kJ/mol25.0288 ±
0.0016
16456-59-0*0
Methyloxoniumylidene C[O+]1062.291054.48± 0.75kJ/mol31.03337 ±
0.00088
58157-09-8*0
Hydroxymethylene [CH]O131.12127.38± 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
Iodide [I-]-56.824± 0.089kJ/mol126.905019 ±
0.000030
20461-54-5*800
Isoformyl [C]O217.29217.67± 0.69kJ/mol29.01804 ±
0.00086
71080-92-7*0
1-Propenyl CC=[CH]280.03269.22± 0.81kJ/mol41.0718 ±
0.0024
6067-68-1*1
Cyclopropene C1C=C1292.34283.61± 0.55kJ/mol40.0639 ±
0.0024
2781-85-3*0
Dioxidenium O[O+]1110.871107.98± 0.11kJ/mol33.00619 ±
0.00060
12207-52-2*0
Bifluoride F.[F-]-481.8-480.6± 1.9kJ/mol39.005295 ±
0.000070
*18130-74-0*2
Chloryl hydride [H][Cl](=O)=O197.6191.2± 1.6kJ/mol68.4594 ±
0.0011
174365-32-3*0
Water anion [H][O-][H]31.329.8± 3.1kJ/mol18.01583 ±
0.00033
12259-30-2*100
Hydrogen fluoride F-321.08± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*820
Cyclobutane C1CCC152.3527.82± 0.41kJ/mol56.1063 ±
0.0032
287-23-0*0
Hydrogen difluoride F.[F]-198.5-198.4± 1.2kJ/mol39.004746 ±
0.000070
12528-21-1*1
n-Heptane CCCCCCC-145.71-187.58± 0.48kJ/mol100.2019 ±
0.0057
142-82-5*0
n-Octane CCCCCCCC-161.46-208.29± 0.67kJ/mol114.2285 ±
0.0065
111-65-9*0
1-Hydroxyethylium C[CH+]O611.1596.6± 1.3kJ/mol45.0600 ±
0.0017
18682-96-7*2
Ethenol C=CO-108.24-119.04± 0.89kJ/mol44.0526 ±
0.0017
557-75-5*2
Vinyl alcohol cation C=C[OH+]778.9767.6± 1.4kJ/mol44.0520 ±
0.0017
57239-63-1*2
Oxiranyl C1[CH]O1172.7164.4± 1.4kJ/mol43.0446 ±
0.0016
31586-84-2*0
Oxiranylium C1[CH+]O1901.5893.5± 1.4kJ/mol43.0441 ±
0.0016
57789-76-1*2
C=O=C [C]=[O]=[C]652.9657.2± 2.3kJ/mol40.0208 ±
0.0016
*12071-23-7*1
C=O=C [C]=[O]=[C]720.0724.3± 1.9kJ/mol40.0208 ±
0.0016
*12071-23-7*2
Oxirene C1=CO1272.85272.15± 0.98kJ/mol42.0367 ±
0.0016
157-18-6*2
Oxirene C1=CO1388.7384.5± 2.6kJ/mol42.0367 ±
0.0016
157-18-6*11
Formic acid cation [CH+](=O)O721.92714.83± 0.26kJ/mol46.0248 ±
0.0010
50614-05-6*1
Dioxirane C1OO19.451.78± 0.55kJ/mol46.0254 ±
0.0010
157-26-6*0
Formyloxidanyl C(=O)[O]-121.76-125.11± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*2
Isofulminic acid C#[N+][O-]170.92169.46± 0.49kJ/mol43.02478 ±
0.00086
51060-05-0*0
Methyl formate COC=O-324.7-337.2± 1.9kJ/mol60.0520 ±
0.0017
107-31-3*2
Dimethylamide C[N-]C122.2103.8± 1.7kJ/mol44.0763 ±
0.0017
34285-60-4*0
Chlorine difluoride [Cl](F)F-47.1-48.2± 1.4kJ/mol73.44951 ±
0.00090
24801-48-7*0
Hexachloroethane C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl-147.4-149.8± 1.6kJ/mol236.7376 ±
0.0056
67-72-1*0
1,1,2-Trichloroethane C(Cl)C(Cl)Cl-136.5-148.2± 1.4kJ/mol133.4033 ±
0.0031
79-00-5*0
Methyl iodide CI-12.28± 0.20kJ/mol141.93899 ±
0.00083
74-88-4*590
Difluoromethylene [C](F)F43.2543.97± 0.39kJ/mol50.00751 ±
0.00080
2154-59-8*1
Difluoromethylene [C](F)F-193.94-193.47± 0.39kJ/mol50.00751 ±
0.00080
2154-59-8*2
Bromide [Br-]-120.71± 0.16kJ/mol79.90455 ±
0.00100
24959-67-9*800
Ethyl iodide CCI-9.42-39.29± 0.49kJ/mol155.9656 ±
0.0016
75-03-6*500
Fluoro(fluorooxy)methylene F[C]OF-135.8-137.0± 2.1kJ/mol66.00691 ±
0.00085
479587-30-9*2
Azide ion [N]N=[N-]193.51189.93± 0.91kJ/mol42.02077 ±
0.00021
14343-69-2*0
Dibromophosgene C(Br)(Br)=O-97.96-113.89± 0.37kJ/mol187.8181 ±
0.0022
593-95-3*0
Oxygen atom [O]246.844249.229± 0.0021kJ/mol15.99940 ±
0.00030
17778-80-2*1
Benzene c1ccccc150.6849.13± 0.23kJ/mol78.1118 ±
0.0048
71-43-2*500
o-Benzyne C1=CC#CC=C1468.05459.13± 0.88kJ/mol76.0960 ±
0.0048
462-80-6*0
m-Benzyne c1[c]ccc[c]1527.0518.5± 1.2kJ/mol76.0960 ±
0.0048
1828-89-3*2
p-Benzyne c1c[c]cc[c]1587.1577.5± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*2
Phenoxy c1ccc(cc1)[O]71.3756.08± 0.94kJ/mol93.1033 ±
0.0048
2122-46-5*0
Benzoyl fluoride c1ccc(cc1)C(=O)F-288.0-304.4± 1.5kJ/mol124.1124 ±
0.0056
455-32-3*0
Iodobenzene c1ccc(cc1)I177.7161.7± 1.0kJ/mol204.0084 ±
0.0048
591-50-4*0
1H-Triazirin-1-yl [N]1N=[N]1585.9584.1± 2.0kJ/mol42.02022 ±
0.00021
912535-95-6*0
(E)-Diazene cation [H]/N=[N+]/[H]1132.461125.53± 0.66kJ/mol30.02881 ±
0.00020
59952-06-6*0
(Z)-Diazene [H]/N=N\[H]228.81221.67± 0.64kJ/mol30.02936 ±
0.00020
15626-42-3*0
Hydroxyaminiumyl [N+]O1160.81157.9± 1.5kJ/mol31.01353 ±
0.00032
63559-88-6*0
Hydroxyamidogen [NH]O123.6117.0± 1.7kJ/mol32.02202 ±
0.00034
13940-32-4*2
Hydroxyaminylium [NH+]O1019.61012.5± 2.5kJ/mol32.02147 ±
0.00034
66097-71-0*1
Dioxyamidogen [NH-][O+]=O240.4233.7± 1.8kJ/mol47.01348 ±
0.00061
71843-95-3*2
Peroxynitrous acid OON=O-0.43-7.48± 0.53kJ/mol63.01288 ±
0.00091
14691-52-2*2
Chlorosyl hydride [H]Cl[O]141.9139.1± 1.7kJ/mol52.46004 ±
0.00095
71572-35-5*0
Bifluoride F.[F-]-68.0-67.6± 1.6kJ/mol39.005295 ±
0.000070
*18130-74-0*1
Dioxiranylidene [C]1OO1190.3191.1± 1.4kJ/mol44.00950 ±
0.00100
138832-57-2*0
Methylidyne [CH]592.81596.15± 0.11kJ/mol13.01864 ±
0.00080
3315-37-5*1
Aquachlorine cation [Cl+]O([H])[H]821.8815.0± 1.7kJ/mol53.46743 ±
0.00096
142599-65-3*0
Ethylidyne [C]C508.56504.86± 0.87kJ/mol27.0452 ±
0.0016
67624-57-1*1
Trioxidaniumyl O[O+]O925.7916.4± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*2
Methylammonium C[NH3+]628.1609.2± 1.4kJ/mol32.06453 ±
0.00091
17000-00-9*0
Aminomethylene [CH][NH2]245.9238.1± 1.5kJ/mol29.04126 ±
0.00083
35430-17-2*0
Methyleneamidogen anion C=[N-]192.72188.97± 0.96kJ/mol28.03387 ±
0.00082
28892-56-0*0
(Z)-Iminomethyl [CH]=N294.51291.02± 0.92kJ/mol28.03332 ±
0.00082
54980-11-9*0
Aminomethylidyne [C]N371.9368.3± 1.1kJ/mol28.03332 ±
0.00082
84654-89-7*0
Hydrogen isocyanide [C]=N192.02192.40± 0.38kJ/mol27.02538 ±
0.00081
6914-07-4*0
Chloroacetylene C#CCl228.04228.90± 0.77kJ/mol60.4820 ±
0.0018
593-63-5*0
Methyleneoxonium [CH2].O152.49144.17± 0.49kJ/mol32.04186 ±
0.00090
177788-17-9*0
Hydroxymethylene anion [CH-]O147.2144.1± 1.6kJ/mol30.02653 ±
0.00087
207914-87-2*1
Iodine atom cation [I+]1115.5491115.149± 0.0062kJ/mol126.903921 ±
0.000030
22541-93-1*0
Hydroxymethyliumylidene [C+]O986.04987.68± 0.83kJ/mol29.01749 ±
0.00086
60528-75-8*0
Isoformyl anion [C][O].[H-]55.858.4± 1.8kJ/mol29.01859 ±
0.00086
81747-63-9*1
Propylium CC[CH2+]856.94838.72± 0.93kJ/mol43.0871 ±
0.0024
19252-52-9*0
Oxywater [OH2][O]64.858.2± 1.3kJ/mol34.01468 ±
0.00062
171363-09-0*0
Cyclopropyl C1C[CH]1302.7290.0± 1.6kJ/mol41.0718 ±
0.0024
2417-82-5*0
Trioxodinitrate anion O=N-[N](=O)[O-]-104.9-108.8± 2.4kJ/mol76.01223 ±
0.00091
194856-62-7*100
Cycloprop-1-enyl C1C=[C]1527.56522.98± 0.69kJ/mol39.0559 ±
0.0024
19528-44-0*0
Cycloprop-2-enyl C1=C[CH]1490.27485.66± 0.64kJ/mol39.0559 ±
0.0024
28933-84-8*0
Cyclopropenylidene C1=C=C1497.07496.11± 0.46kJ/mol38.0480 ±
0.0024
16165-40-5*0
Triiodide ion I[I-]I-51.37± 0.80kJ/mol380.713959 ±
0.000090
14900-04-0*800
2-Propynylidyne anion C#C[C-]539.96544.81± 0.84kJ/mol37.0406 ±
0.0024
82893-67-2*0
Cyclopropynyl [CH]1C#C1710.7714.8± 1.1kJ/mol37.0400 ±
0.0024
119178-99-3*0
Oxygen cation monohydrate [H]O[H][O+]1153.01147.5± 3.3kJ/mol34.01413 ±
0.00062
*31748-17-1*0
sec-Butyl CC[CH]C90.1965.42± 0.98kJ/mol57.1143 ±
0.0033
2348-55-2*0
t-Butylium C[C+](C)C733.77710.50± 0.98kJ/mol57.1137 ±
0.0033
14804-25-2*0
iso-Butyl CC(C)[CH2]97.0173.02± 0.77kJ/mol57.1143 ±
0.0033
4630-45-9*0
Methylcyclopropane CC1CC147.624.3± 1.3kJ/mol56.1063 ±
0.0032
594-11-6*0
Dihydrogen fluoride anion F.[H-]133.2131.9± 1.6kJ/mol21.01483 ±
0.00014
117339-92-1*1
Cyclobutene C1CC=C1176.79159.74± 0.92kJ/mol54.0904 ±
0.0032
822-35-5*0
Peroxychlorous acid O=ClOO96.290.2± 2.1kJ/mol84.4588 ±
0.0013
177778-92-6*1
Chlorine fluoride cation [Cl+]F1165.521165.70± 0.49kJ/mol54.45055 ±
0.00090
12432-44-9*0
Vinyl alcohol cation C=C[OH+]787.1775.9± 1.1kJ/mol44.0520 ±
0.0017
57239-63-1*1
Vinoxy cation [CH2+]C=O1020.11013.1± 1.6kJ/mol43.0441 ±
0.0016
*35731-40-9*1
Vinoxide [CH2-]C=O-153.58-160.63± 0.77kJ/mol43.0452 ±
0.0016
35731-40-9*0
Dinitrogen tetraoxide O=N(=O)N(=O)=O20.1410.85± 0.14kJ/mol92.0111 ±
0.0012
10544-72-6*0
Hydrogen fluoride F-321.12± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*821
Perchloric acid OCl(=O)(=O)=O13.21.8± 1.8kJ/mol100.4582 ±
0.0015
7601-90-3*0
Acetic acid CC(=O)O-485.20± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*800
COC vdW [C]=O.[C]589.3598.1± 1.9kJ/mol40.0208 ±
0.0016
*12071-24-8*1
Oxirene C1=CO1390.8386.6± 2.7kJ/mol42.0367 ±
0.0016
157-18-6*12
Methylperoxy anion CO[O-]-89.81-99.96± 0.68kJ/mol47.0339 ±
0.0010
35683-44-4*0
Fluorohydrochlorine cation FCl[H+]975.3972.3± 2.0kJ/mol55.45849 ±
0.00090
70110-64-4*0
Formyloxoniumylidene C(=O)[O+]1017.31013.8± 1.4kJ/mol45.0169 ±
0.0010
54375-27-8*0
Dioxymethylene [CH]O[O]364.0361.6± 2.7kJ/mol45.0174 ±
0.0010
438586-67-5*1
2-Hydrotrioxy cation [O][OH][O+]1297.91291.3± 1.5kJ/mol49.00559 ±
0.00090
*74241-49-9*0
Cyanic acid OC#N-12.20-14.91± 0.49kJ/mol43.02478 ±
0.00086
420-05-3*0
Fulminic acid O[N+]#[C-]235.38233.68± 0.48kJ/mol43.02478 ±
0.00086
506-85-4*0
Isocyanate -221.09-221.31± 0.54kJ/mol42.01739 ±
0.00086
71000-82-3*0
Nitrosomethylidyne [C]N=O389.5390.8± 1.5kJ/mol42.01684 ±
0.00086
82267-15-0*0
Oxazirinyl [C]1=NO1449.9450.7± 1.5kJ/mol42.01684 ±
0.00086
228850-18-8*0
Dimethylmethyleneammonium C[N+](C)[CH2]695.9670.8± 1.4kJ/mol58.1018 ±
0.0025
28149-27-1*0
Isocyanogen [C-]#[N+]C#N410.8413.1± 1.7kJ/mol52.0349 ±
0.0016
83951-85-3*0
Diisocyanogen [C-]#[N+][N+]#[C-]610.2613.1± 1.8kJ/mol52.0349 ±
0.0016
78800-21-2*0
Cyanoamidogen [NH]C#N325.0322.6± 1.8kJ/mol41.03212 ±
0.00082
12347-01-2*0
Trichloromethide [C-](Cl)(Cl)Cl-125.0-124.4± 2.0kJ/mol118.3693 ±
0.0028
14478-07-0*0
Oxygen anion monohydrate [H]O[H][O-]-239.1-244.4± 3.0kJ/mol34.01523 ±
0.00062
31748-17-1*0
Deuterium atom [2H]219.804221.717± 0.000kJ/mol2.01410177800 ±
0.00000000040
16873-17-9*0
Chlorine difluoride cation [Cl+](F)F998.9996.7± 1.7kJ/mol73.44896 ±
0.00090
32629-46-2*0
Trichloroethene C(Cl)=C(Cl)Cl-10.8-14.1± 1.6kJ/mol131.3874 ±
0.0031
79-01-6*0
2-Hydrotrioxy anion [O][OH][O-]27.521.8± 1.4kJ/mol49.00669 ±
0.00090
*89965-38-8*0
Bromodichloromethane C(Cl)(Cl)Br-37.6-49.3± 1.3kJ/mol163.8280 ±
0.0022
75-27-4*0
Difluorodibromomethane C(F)(F)(Br)Br-366.0-383.7± 1.4kJ/mol209.8155 ±
0.0022
75-61-6*0
Dichlorodibromomethane C(Cl)(Cl)(Br)Br20.75.0± 1.5kJ/mol242.7241 ±
0.0028
594-18-3*0
Bromodifluoromethane C(F)(F)Br-410.85-424.05± 0.49kJ/mol130.9194 ±
0.0013
1511-62-2*0
Oxofluoronium O=[F+]1342.641342.59± 0.81kJ/mol34.99725 ±
0.00030
12763-67-6*0
1,2-Difluoroethane C(F)CF-434.44-447.87± 0.86kJ/mol66.0500 ±
0.0016
624-72-6*0
1,2-Difluoroacetylene FC#CF2.775.59± 0.66kJ/mol62.0182 ±
0.0016
689-99-6*0
Fluoro(fluorooxy)methylene F[C]OF-38.8-40.4± 2.1kJ/mol66.00691 ±
0.00085
479587-30-9*1
Phenylium c1cccc[c+]11251.11238.0± 1.9kJ/mol77.1034 ±
0.0048
17333-73-2*1
Hydrogen difluoride cation [F+]F[H]1174.31171.3± 1.5kJ/mol39.004198 ±
0.000070
*126950-54-7*0
Chlorobenzene cation c1ccc(cc1)[Cl+]942.46928.54± 0.61kJ/mol112.5561 ±
0.0049
55450-32-3*0
Chlorobenzene c1ccc(cc1)Cl11.21± 0.59kJ/mol112.5566 ±
0.0049
108-90-7*500
Bromobenzene cation c1ccc(cc1)[Br+]994.7973.2± 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-]81.561.5± 1.4kJ/mol123.1094 ±
0.0049
98-95-3*0
Chlorine chlorite ClO[Cl]=O168.6166.2± 1.3kJ/mol102.9042 ±
0.0019
105206-44-8*3
Methyl nitrite CON=O-55.58-66.25± 0.45kJ/mol61.0401 ±
0.0010
624-91-9*0
Carbon atom anion [C-]589.631594.777± 0.049kJ/mol12.01125 ±
0.00080
14337-00-9*0
Dioxymethylidyne [C]O[O]299.8301.1± 1.7kJ/mol44.00950 ±
0.00100
791121-04-5*0
Nitronium O=[N+]=O961.78958.22± 0.20kJ/mol46.00499 ±
0.00060
14522-82-8*0
Trifluoromethide [C-](F)(F)F-637.7-639.5± 1.8kJ/mol69.00646 ±
0.00080
54128-17-5*0
2-Cyclopropyn-1-ylidene C1=C=C=1899.2906.1± 1.6kJ/mol36.0321 ±
0.0024
102508-15-6*1
Propynylidyne cation [C+]1=C=C=11947.01954.9± 2.0kJ/mol36.0316 ±
0.0024
154702-35-9*0
Dioxaziridinyl [N]1OO1355.1352.6± 1.5kJ/mol46.00554 ±
0.00060
66252-29-7*0
Hydrogen fluoride F-321.14± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*822
Bromo hypobromite BrOBr120.1103.7± 1.4kJ/mol175.8074 ±
0.0020
21308-80-5*0
Ethylene cation C=[CH2+]1075.221068.01± 0.12kJ/mol28.0526 ±
0.0016
34470-02-5*0
Peroxyimidogen [N]O[O]405.4403.4± 1.9kJ/mol46.00554 ±
0.00060
*60488-31-5*0
Chlorosyl ion [Cl+]=O1150.851150.69± 0.66kJ/mol51.45155 ±
0.00095
12301-79-0*0
Hydrogen fluoride F-321.10± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*904
Iminomethyl anion [CH-]=N237.4233.6± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*1
Fluoronium [H][F+][H]774.10771.16± 0.88kJ/mol21.01373 ±
0.00014
12206-67-6*0
Cyanogen iodide anion IC#[N-]86.588.8± 8.1kJ/mol152.92246 ±
0.00080
1356929-44-6*0
Oxadiazirine N1=NO1351.7349.8± 1.7kJ/mol44.01288 ±
0.00033
227934-45-4*0
Formaldehyde cation C=[O+]944.89941.27± 0.10kJ/mol30.02543 ±
0.00087
54288-05-0*0
Iodine atom [I]107.157106.757± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*1
NON [N]O[N]545.5542.3± 1.7kJ/mol44.01288 ±
0.00033
227934-46-5*0
Isoformyl anion [C][O].[H-]267.4268.0± 1.6kJ/mol29.01859 ±
0.00086
81747-63-9*2
Fluoronium [H][F+][H]1490.11491.5± 1.9kJ/mol21.01373 ±
0.00014
12206-67-6*1
Azidonitrene [N]=NN=[N]692.1687.5± 1.4kJ/mol56.02696 ±
0.00028
147363-92-6*2
Dioxygenyl ion monohydrate O.O=[O+]828.7821.6± 2.1kJ/mol50.01353 ±
0.00091
11083-61-7*0
Diazenide N#N.[H-]175.7176.7± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*100
Chlorite O=[Cl-]=O-105.62-107.80± 0.35kJ/mol67.4520 ±
0.0011
14998-27-7*0
2-Propynylium [CH2+]C#C1193.461190.65± 0.38kJ/mol39.0554 ±
0.0024
21540-27-2*0
2-Cyclopropen-1-ylium-1-yl C1=[C+]=C11382.01381.0± 1.1kJ/mol38.0474 ±
0.0024
85398-75-0*0
Dihydrogen fluoride anion [F-].[H][H]-257.0-260.1± 1.9kJ/mol21.01483 ±
0.00014
*117339-92-1*2
Propynylidene [CH]=C=[CH]597.6599.3± 1.2kJ/mol38.0480 ±
0.0024
67152-18-5*3
Propenediylidene [CH][CH][C]796.3797.4± 1.3kJ/mol38.0480 ±
0.0024
60731-11-5*0
Cyclopentene C1CC=CC158.0933.82± 0.45kJ/mol68.1170 ±
0.0040
142-29-0*0
Ethyloxoniumyl CC[OH+]783.6766.5± 1.7kJ/mol46.0679 ±
0.0017
34480-55-2*0
1-Hydroxyethylium C[CH+]O609.13594.70± 0.39kJ/mol45.0600 ±
0.0017
18682-96-7*0
Hydrogen difluoride F.[F]-187.4-187.1± 1.6kJ/mol39.004746 ±
0.000070
12528-21-1*2
Peroxychlorite O=ClO[O-]-34.3-34.2± 2.0kJ/mol83.4514 ±
0.0013
852472-63-0*0
Trihydrogen dioxide anion [OH][H][OH-]-487.5-495.8± 1.1kJ/mol35.02317 ±
0.00064
12501-19-8*0
1-Chloro ozone ClOO[O]226.3223.1± 2.3kJ/mol83.4509 ±
0.0013
141801-66-3*101
Acetaldehyde cation CC=[O+]832.03822.05± 0.28kJ/mol44.0520 ±
0.0017
36505-03-0*0
Oxiranylium C1[CH+]O11233.61226.6± 1.8kJ/mol43.0441 ±
0.0016
57789-76-1*1
Oxiranyl anion C1[CH-]O1121.3113.2± 1.6kJ/mol43.0452 ±
0.0016
72722-59-9*0
Ketene C=C=O-45.37-48.49± 0.13kJ/mol42.0367 ±
0.0016
463-51-4*2
Fluorochlorate [Cl-]F-256.03-255.43± 0.81kJ/mol54.45165 ±
0.00090
12272-56-9*0
Ethynol anion [CH-]=C=O-48.51-47.26± 0.89kJ/mol41.0293 ±
0.0016
64066-01-9*0
Dicarbon monoxide anion [C-]=C=O154.4158.0± 1.1kJ/mol40.0213 ±
0.0016
87191-88-6*0
Dicarbon monoxide [C]=C=O440.4444.7± 1.1kJ/mol40.0208 ±
0.0016
12071-23-7*2
COC vdW [C]=O.[C]725.2733.5± 2.0kJ/mol40.0208 ±
0.0016
*12071-24-8*2
C=O-C cation [C]=[O+][C]1575.81582.9± 2.4kJ/mol40.0203 ±
0.0016
83483-98-1*1
C=O=C anion [C-]=[O+]=[C-]549.8553.5± 2.2kJ/mol40.0213 ±
0.0016
*87191-88-6*0
Hydroxyimidogen [N]O217.93215.04± 0.90kJ/mol31.01408 ±
0.00032
35337-59-8*0
Formic acid cation [CH+](=O)O723.8716.7± 1.2kJ/mol46.0248 ±
0.0010
50614-05-6*2
Formic acid anion [CH-](=O)O-256.2-262.3± 1.8kJ/mol46.0259 ±
0.0010
19066-82-1*1
Nitrous acid N(=O)O-71.39-77.74± 0.29kJ/mol47.01348 ±
0.00061
7782-77-6*2
OH-CO vdW complex [O][H].[C]#O-80.31-77.42± 0.96kJ/mol45.0174 ±
0.0010
*2564-85-4*100
CO-HO vdW complex [O][H].O#[C]-77.6-73.6± 1.8kJ/mol45.0174 ±
0.0010
*2564-84-3*100
H-CO2 vdW complex [H].O=C=O-179.3-178.3± 2.2kJ/mol45.0174 ±
0.0010
*2564-83-2*100
Dibromide Br[Br-]-199.2-213.3± 2.0kJ/mol159.8085 ±
0.0020
12595-70-9*0
Isocyanic acid cation [NH+]=C=O1003.041000.38± 0.51kJ/mol43.02423 ±
0.00086
444010-28-0*0
Isofulminic acid cation C#[N+][O]1215.81213.0± 1.3kJ/mol43.02423 ±
0.00086
114766-65-3*0
Acetic acid CC(=O)O-484.93± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*840
Dioxygen O=O94.41094.383± 0.000kJ/mol31.99880 ±
0.00060
7782-44-7*2
Acetyl chloride CC(=O)Cl-272.22± 0.33kJ/mol78.4973 ±
0.0019
75-36-5*500
Chlorohydrofluorine cation ClF[H+]1000.8998.1± 2.1kJ/mol55.45849 ±
0.00090
70110-63-3*0
(Formyloxy)methyl O=CO[CH2]-148.7-156.9± 1.7kJ/mol59.0440 ±
0.0017
3122-12-1*1
Glyoxal O=CC=O-206.91-212.55± 0.52kJ/mol58.0361 ±
0.0017
107-22-2*1
Chloride [Cl-]-166.993± 0.023kJ/mol35.45325 ±
0.00090
16887-00-6*800
Diazoethenylidene [N-]=[N+]=C=[C]657.0659.6± 3.0kJ/mol52.0349 ±
0.0016
130760-10-0*0
Isocyanomethylidyne [C][N+]#[C-]671.3675.7± 3.6kJ/mol38.0281 ±
0.0016
53590-27-5*0
Fluorosyl fluoride FF[O]192.6193.1± 2.3kJ/mol53.99621 ±
0.00030
86825-57-2*1
Diazomethyl [CH]=[N]=[N]472.9470.4± 2.0kJ/mol41.03212 ±
0.00082
20813-32-5*0
Isocyanoamidogen [NH][N+]#[C-]492.8490.8± 2.0kJ/mol41.03212 ±
0.00082
947408-73-3*0
Tetrachloromethane C(Cl)(Cl)(Cl)Cl-108.76-128.17± 0.45kJ/mol153.8215 ±
0.0037
56-23-5*500
Dichloromethylene anion [C-](Cl)Cl75.6377.90± 0.78kJ/mol82.9166 ±
0.0020
118364-73-1*0
Dichloromethylium [CH+](Cl)Cl894.6891.4± 1.2kJ/mol83.9235 ±
0.0020
56932-33-3*0
Dichloromethide [CH-](Cl)Cl-41.3-43.0± 2.0kJ/mol83.9246 ±
0.0020
32180-91-9*0
Chloromethylium [CH2+]Cl962.4958.5± 1.2kJ/mol49.4787 ±
0.0012
59000-00-9*0
Chloromethylene [CH]Cl346.12346.42± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*1
1,2-Dichloroethane C(Cl)CCl-165.63± 0.56kJ/mol98.9586 ±
0.0024
107-06-2*500
1,1-Dichloroethane CC(Cl)Cl-163.40± 0.54kJ/mol98.9586 ±
0.0024
75-34-3*500
Chlorosyl chloride ClCl[O]134.5133.2± 1.4kJ/mol86.9048 ±
0.0018
86825-56-1*0
Hydroxydioxonitrate O[N](=O)[O-]-190.5-194.8± 3.2kJ/mol63.01343 ±
0.00091
58875-09-5*0
Chloroform C(Cl)(Cl)Cl-133.73± 0.52kJ/mol119.3767 ±
0.0028
67-66-3*590
Chlorodibromomethane C(Cl)(Br)Br18.8-0.0± 3.4kJ/mol208.2793 ±
0.0023
124-48-1*0
Fluorotribromomethane C(Br)(Br)(Br)F-107.2-131.2± 1.6kJ/mol270.7211 ±
0.0031
353-54-8*0
Chlorotribromomethane C(Br)(Br)(Br)Cl77.354.4± 1.6kJ/mol287.1754 ±
0.0032
594-15-0*0
Chlorobromomethane C(Cl)Br-29.0-43.0± 1.3kJ/mol129.3833 ±
0.0016
74-97-5*0
Fluoromethyliumylidene [C+]F1122.671125.89± 0.48kJ/mol31.00855 ±
0.00080
33412-11-2*0
Fluoromethylene [CH]F148.34148.62± 0.46kJ/mol32.01704 ±
0.00080
13453-52-6*0
Ethyl iodide CCI8.69-7.19± 0.49kJ/mol155.9656 ±
0.0016
75-03-6*0
1,2-Dibromoacetylene BrC#CBr333.3322.4± 3.6kJ/mol183.8294 ±
0.0026
624-61-3*0
Azanylium [NH2+]1266.551264.48± 0.12kJ/mol16.02207 ±
0.00016
15194-15-7*0
Fluoro(fluorooxy)methylene F[C]OF-100.9-99.1± 2.1kJ/mol66.00691 ±
0.00085
479587-30-9*101
Fluorooxomethylium F[C+]=O724.6724.3± 1.4kJ/mol47.00795 ±
0.00085
38264-00-5*0
Fluoroisoformyl [C]OF-38.8-33.4± 2.0kJ/mol47.00850 ±
0.00085
*1871-24-5*0
Benzene cation c1ccc(cc1)[H+]992.47976.00± 0.23kJ/mol78.1113 ±
0.0048
34504-50-2*0
Hydrogen fluoride F-321.04± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*902
Ammonia N-80.890± 0.053kJ/mol17.03056 ±
0.00022
7664-41-7*1000
Ammonium nitrate [NH4+].O=[N+]([O-])[O-]-350.29-365.25± 0.18kJ/mol80.04344 ±
0.00095
6484-52-2*500
2-Oxopropylium CC(=[O+])[CH2]784.4770.6± 1.8kJ/mol57.0707 ±
0.0024
54088-52-7*0
1,2-Dibromoethane C(Br)CBr-10.9-37.8± 1.3kJ/mol187.8612 ±
0.0026
106-93-4*0
Nirous oxide cation N#[N+]=O1329.671326.77± 0.12kJ/mol44.01233 ±
0.00033
12269-46-4*0
(E)-Diazene anion [H]/N=[N-]/[H]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
*59952-06-6*0
Methylimidogen C[N]323.1315.4± 1.7kJ/mol29.04126 ±
0.00083
27770-42-9*0
(Z)-Diazene cation [H]/N=[N+]\[H]1157.01150.1± 1.3kJ/mol30.02881 ±
0.00020
86631-37-0*0
Iminomethyl anion [CH-]=N252.7248.9± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*2
Hydrogen cyanide cation [CH+]#N1442.521442.06± 0.20kJ/mol27.02483 ±
0.00081
12601-62-6*0
1-Hydrazinylium-1-yl [N+]N1143.41136.4± 1.4kJ/mol30.02881 ±
0.00020
63986-30-1*0
Diiodide I[I-]-178.13-180.72± 0.48kJ/mol253.809489 ±
0.000060
12190-71-5*0
Methyleneoxonium cation [CH2+].O827.8818.3± 1.7kJ/mol32.04131 ±
0.00090
*177788-17-9*0
Hydroxymethanide [CH2-]O9.42.8± 1.7kJ/mol31.03447 ±
0.00088
55830-71-2*0
Formaldehyde C=O-105.347-109.186± 0.098kJ/mol30.02598 ±
0.00087
50-00-0*2
Hydrogen peroxide cation O[OH+]930.4923.6± 1.0kJ/mol34.01413 ±
0.00062
12325-10-9*2
Oxadiazirine anion [N-]1=NO195.195.5± 2.9kJ/mol44.01343 ±
0.00033
350586-31-1*0
Hydroxymethylene cation [CH+]O986.4982.8± 1.6kJ/mol30.02543 ±
0.00087
135395-06-1*2
Hydroxymethylene cation [CH+]O1482.11479.4± 1.9kJ/mol30.02543 ±
0.00087
135395-06-1*3
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
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
Trioxidaniumyl O[O+]O935.4926.4± 1.6kJ/mol50.01353 ±
0.00091
161321-37-5*3
Peroxyformic acid C(=O)OO-265.8-273.8± 1.7kJ/mol62.0248 ±
0.0012
107-32-4*2
Peroxyformic acid C(=O)OO-265.6-273.5± 1.6kJ/mol62.0248 ±
0.0012
107-32-4*3
Hydrogen fluoride F-320.86± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*815
Diazenide N#N.[H-]347.5344.6± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*1
Fluorodioxidanide [F-]O[O]-256.9-256.1± 1.9kJ/mol50.99775 ±
0.00060
23553-17-5*0
Propynylidene cation C#C[CH+]1410.81413.4± 1.3kJ/mol38.0474 ±
0.0024
75123-91-0*0
Propynylidene [CH]=C=[CH]597.3599.1± 1.1kJ/mol38.0480 ±
0.0024
67152-18-5*4
Hydroxylamine NO-15.0-25.5± 1.9kJ/mol33.02996 ±
0.00037
7803-49-8*2
Propadienylidenide C=C=[C-]381.16382.06± 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
Hydroxylamine cation N[OH+]857.9848.0± 2.2kJ/mol33.02941 ±
0.00037
62675-55-2*0
Dihydrogen fluoride anion F.[H-]-61.9-60.5± 3.2kJ/mol21.01483 ±
0.00014
117339-92-1*2
Hydrogen chloride Cl-165.559± 0.026kJ/mol36.46064 ±
0.00090
7647-01-0*825
Nitroxyl cation N[O+]946.15939.02± 0.87kJ/mol32.02147 ±
0.00034
*51375-41-8*0
n-Pentane CCCCC-156.15-173.12± 0.31kJ/mol72.1488 ±
0.0041
109-66-0*500
iso-Pentane CCC(C)C-178.53± 0.44kJ/mol72.1488 ±
0.0041
78-78-4*500
neo-Pentane CC(C)(C)C-189.96± 0.40kJ/mol72.1488 ±
0.0041
463-82-1*500
Cyclopentane C1CCCC1-106.29± 0.44kJ/mol70.1329 ±
0.0041
287-92-3*590
1,5-Hexadiene C=CCCC=C108.3483.75± 0.40kJ/mol82.1436 ±
0.0049
592-42-7*0
Chlorine oxide peroxide O=ClO[O]226.5227.4± 2.5kJ/mol83.4509 ±
0.0013
141801-67-4*100
2-Hydroxyethylium [CH2+]CO1024.41011.8± 2.3kJ/mol45.0600 ±
0.0017
38607-31-7*1
Ethoxy CC[O]1.84-11.59± 0.52kJ/mol45.0605 ±
0.0017
2154-50-9*0
Ethyloxoniumylidene CC[O+]988.8975.1± 1.9kJ/mol45.0600 ±
0.0017
54387-07-4*0
Dihydrogen fluoride F.H-55.9-54.9± 1.6kJ/mol21.01428 ±
0.00014
12592-22-2*1
Hydroxyaminylium [NH+]O1048.61041.5± 2.6kJ/mol32.02147 ±
0.00034
66097-71-0*2
Nitrosyl fluoride FN=O-85.82-88.18± 0.93kJ/mol49.00454 ±
0.00031
7789-25-5*0
Formylmethyl anion 140.5134.2± 1.9kJ/mol43.0452 ±
0.0016
64723-93-9*0
Hydroxyamidogen anion [NH-]O90.985.0± 2.9kJ/mol32.02257 ±
0.00034
*66097-71-0*0
Dicarbon monoxide cation [C+]=C=O1434.01439.1± 2.2kJ/mol40.0203 ±
0.0016
12287-08-0*0
1,3-Butadiyne-1,4-diyl [C]#CC#[C]1052.451062.43± 0.67kJ/mol48.0428 ±
0.0032
78015-07-3*0
C=O-C cation [C]=[O+][C]1812.61816.6± 2.4kJ/mol40.0203 ±
0.0016
83483-98-1*2
1-Chloro ozone anion ClOO[O-]-108.9-111.4± 2.2kJ/mol83.4514 ±
0.0013
224299-15-4*3
Oxirene cation C1=C[O+]11109.01105.5± 5.2kJ/mol42.0361 ±
0.0016
94664-69-4*0
1-Chloro ozone anion ClOO[O-]-66.8-68.7± 2.1kJ/mol83.4514 ±
0.0013
224299-15-4*1
Dihydrogen cation [H][H+]1488.3641488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*0
Nitrosyl nitrate O=N(O1)ON1=O70.662.3± 1.8kJ/mol92.0111 ±
0.0012
*15969-55-8*0
Formic acid anion [CH-](=O)O-241.2-246.9± 1.9kJ/mol46.0259 ±
0.0010
19066-82-1*2
Bifluoride F[H][F-]-705.22-709.07± 0.36kJ/mol39.005295 ±
0.000070
18130-74-0*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
Deuterium atom cation [2H+]1532.2101534.123± 0.000kJ/mol2.01355319809 ±
0.00000000040
14464-47-2*0
Dioxymethylene [CH]O[O]341.1338.9± 3.4kJ/mol45.0174 ±
0.0010
438586-67-5*2
Dioxofluorine [O]F[O]524.0523.2± 1.1kJ/mol50.99720 ±
0.00060
175861-93-5*0
Trifluoride ion FF[F-]-348.9-349.7± 2.6kJ/mol56.9957582 ±
0.0000015
25730-99-8*0
Cyanato cation N#C[O+]1261.561262.07± 0.59kJ/mol42.01629 ±
0.00086
17247-99-3*0
Nitrous acid N(=O)O-73.023-78.680± 0.079kJ/mol47.01348 ±
0.00061
7782-77-6*0
Nitrosomethyliumylidene [C+]N=O1509.91510.9± 1.9kJ/mol42.01629 ±
0.00086
67197-19-7*0
Fulminate [C-]#[N+][O-]59.259.5± 1.9kJ/mol42.01739 ±
0.00086
28269-67-2*0
Acetic acid CC(=O)O-484.11-483.68± 0.18kJ/mol60.0520 ±
0.0017
64-19-7*500
Acetic acid CC(=O)O-484.73± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*825
Acetic acid CC(=O)O-484.91± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*835
Dioxaziridinyl cation [N+]1OO11365.81363.3± 1.7kJ/mol46.00499 ±
0.00060
*66252-29-7*0
(Formyloxy)methyl O=CO[CH2]-133.6-141.8± 2.2kJ/mol59.0440 ±
0.0017
3122-12-1*2
Ethane cation C[CH3+]1043.201029.19± 0.60kJ/mol30.0685 ±
0.0017
34488-65-8*0
Glyoxal O=CC=O-188.51-193.95± 0.69kJ/mol58.0361 ±
0.0017
107-22-2*2
Glyoxal O=CC=O-206.91-212.47± 0.52kJ/mol58.0361 ±
0.0017
107-22-2*0
Fluoroniumyl ion [FH+]1275.5561275.788± 0.050kJ/mol20.005795 ±
0.000070
12381-92-9*0
Dimethylaminylium C[N+]C1040.01024.6± 1.8kJ/mol44.0752 ±
0.0017
49784-85-2*0
Isocyanogen anion 383.7387.4± 2.6kJ/mol52.0354 ±
0.0016
*83951-85-3*1
Diisocyanogen cation [C]#[N+][N+]#[C-]1823.11825.9± 3.5kJ/mol52.0343 ±
0.0016
*78800-21-2*1
Cyanomethylidyne [C]C#N676.1680.5± 1.9kJ/mol38.0281 ±
0.0016
4120-02-9*0
Dioxaziridinyl anion [N-]1OO1295.9293.4± 1.7kJ/mol46.00609 ±
0.00060
66252-31-1*0
Perchloryloxy O=Cl(=O)(=O)[O]248.6241.0± 1.8kJ/mol99.4503 ±
0.0015
12133-63-0*0
Hydrogen fluoride F-321.16± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*823
Dichloromethylene [C](Cl)Cl313.62314.82± 0.90kJ/mol82.9161 ±
0.0020
1605-72-7*1
Perchlorate O=Cl(=O)(=O)[O-]-263.2-272.1± 2.2kJ/mol99.4508 ±
0.0015
14797-73-0*0
Trioxidanylium OO[O+]1085.31079.1± 1.5kJ/mol49.00559 ±
0.00090
74241-49-9*2
Azidonitrene [N]=NN=[N]660.8657.6± 1.6kJ/mol56.02696 ±
0.00028
147363-92-6*1
Ethylene anion C=[CH2-]232.1224.5± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*1
Chloromethyliumyl [CH+]Cl1207.31207.6± 2.0kJ/mol48.4708 ±
0.0012
89877-51-0*0
Chloromethylene anion [CH-]Cl203.42204.23± 0.94kJ/mol48.4719 ±
0.0012
75466-08-9*0
Chlorohydroxymethyl [CH](Cl)O-46.0-51.6± 2.0kJ/mol65.4787 ±
0.0012
147139-06-8*2
1,1,2-Trichloroethane C(Cl)C(Cl)Cl-188.5± 1.4kJ/mol133.4033 ±
0.0031
79-00-5*500
Hexachloroethane C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl-216.6± 2.9kJ/mol236.7376 ±
0.0056
67-72-1*500
trans-1,2-Dichloroethene C(\Cl)=C/Cl5.29-0.13± 0.56kJ/mol96.9427 ±
0.0024
156-60-5*0
Chlorine difluoride anion [Cl-](F)F-504.9-505.8± 1.9kJ/mol73.45005 ±
0.00090
16892-05-0*0
Tetrachloroethene C(=C(Cl)Cl)(Cl)Cl-62.9± 1.1kJ/mol165.8322 ±
0.0039
127-18-4*500
Azanylium [NH3+]944.272937.318± 0.030kJ/mol17.03001 ±
0.00022
19496-55-0*0
Hydrofluorate ion [FH-]-75.6-75.1± 1.8kJ/mol20.006892 ±
0.000070
37249-79-9*0
Chlorine difluoride [Cl]FF22.523.8± 1.9kJ/mol73.44951 ±
0.00090
91483-78-2*0
Nitric acid O[N+](=O)[O-]-206.31± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*839
Hydrogen chloride Cl-166.685± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*841
Fluorochlorobromomethane C(F)(Cl)Br-219.3-231.7± 5.5kJ/mol147.3737 ±
0.0016
593-98-6*0
Fluoromethyliumyl [CH+]F1116.91117.2± 2.4kJ/mol32.01649 ±
0.00080
89877-52-1*0
Fluoromethylene anion [CH-]F95.9496.47± 0.64kJ/mol32.01759 ±
0.00080
71267-42-0*0
Peroxyimidogen cation [N]O[O+]1409.61406.8± 1.9kJ/mol46.00499 ±
0.00060
*60488-32-6*0
Fluorodioxidenium FO[O+]1221.91219.5± 2.0kJ/mol50.99665 ±
0.00060
139584-95-5*0
Polytetrafluoroethylene FC(C(F)(F)[*:1])(F)[*:2]-829.49± 0.58kJ/mol100.0150 ±
0.0016
9002-84-0*591
Nitric acid O[N+](=O)[O-]-179.01-173.29± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*500
Dihydrooxooxygen cation [OH2][O+]994.5987.8± 1.6kJ/mol34.01413 ±
0.00062
177329-59-8*0
cis-1,2-Difluoroethene F/C=C\F-302.9-309.7± 1.1kJ/mol64.0341 ±
0.0016
1630-77-9*0
trans-1,2-Difluoroethene F/C=C/F-299.7-306.1± 1.1kJ/mol64.0341 ±
0.0016
1630-78-0*0
Bromoacetylene C#CBr282.4275.9± 2.2kJ/mol104.9333 ±
0.0019
593-61-3*0
Formyl fluoride cation F[CH+]=O816.6813.3± 1.3kJ/mol48.01589 ±
0.00086
99766-68-4*0
Formyl fluoride F[C-]=O-405.4-403.9± 1.8kJ/mol47.00905 ±
0.00085
62227-71-8*0
Fluoroisoformyl cation [C+]OF1347.51348.9± 2.5kJ/mol47.00795 ±
0.00085
*1871-25-6*0
Hydrogen fluoride F-321.01± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*901
Aminyliumyl [NH+]1659.031659.96± 0.24kJ/mol15.014131 ±
0.000099
19067-62-0*0
Peroxyimidogen anion [N]O[O-]165.0162.7± 1.7kJ/mol46.00609 ±
0.00060
60488-31-5*0
Fluorosyl fluoride anion FF[O-]-147.2-146.9± 3.0kJ/mol53.99675 ±
0.00030
*86825-57-2*2
Hydrogen fluoride F-302.39± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*590
o-Benzyne cation C1=CC#CC=[CH+]11393.81385.8± 1.7kJ/mol76.0954 ±
0.0048
70220-84-7*0
m-Benzyne cation c1[c]ccc[c+]11365.51357.0± 1.9kJ/mol76.0954 ±
0.0048
121058-08-0*0
p-Benzyne c1c[c]cc[c]1603.5594.2± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*1
Hydrogen bromide Br-120.23± 0.16kJ/mol80.9119 ±
0.0010
10035-10-6*834
Xenon cation [Xe+]1170.3541170.354± 0.0062kJ/mol131.2895 ±
0.0200
24203-25-6*0
Hydrogen bromide Br-120.52± 0.16kJ/mol80.9119 ±
0.0010
10035-10-6*844
Acetylene anion C#[CH-]356.9356.7± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*1
Krypton hydride cation [Kr+][H]1106.331104.55± 0.69kJ/mol84.8074 ±
0.1000
37276-90-7*0
Allylium C=C[CH2+]964.09952.53± 0.55kJ/mol41.0713 ±
0.0024
1724-44-3*0
Allyl anion C=C[CH2-]133.02123.27± 0.86kJ/mol41.0723 ±
0.0024
1724-46-5*0
1-Propenyl cation CC=[CH+]1232.61222.3± 1.7kJ/mol41.0713 ±
0.0024
50457-58-4*2
1-Propenyl anion CC=[CH-]203.6192.4± 1.8kJ/mol41.0723 ±
0.0024
65887-20-9*2
1-Propenyl cation CC=[CH+]1234.31223.9± 1.7kJ/mol41.0713 ±
0.0024
50457-58-4*1
1-Propenyl anion CC=[CH-]210.2199.1± 1.8kJ/mol41.0723 ±
0.0024
65887-20-9*1
Methylimidogen anion C[N-]321.1313.5± 1.8kJ/mol29.04181 ±
0.00083
82539-34-2*0
Trioxodinitrate anion O=N-[N](=O)[O-]-88.5-95.6± 2.1kJ/mol76.01223 ±
0.00091
194856-62-7*1
Hydrogen fluoride F-321.16± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*905
Trioxidanylium OO[O+]1070.61064.3± 1.4kJ/mol49.00559 ±
0.00090
74241-49-9*0
Cycloprop-2-enylium C1=C[CH+]11080.71075.6± 1.4kJ/mol39.0554 ±
0.0024
26810-74-2*0
Ethynylene cation [C]=[C+]1967.91974.5± 1.9kJ/mol24.0209 ±
0.0016
12595-79-8*0
Methyleneaminylium C=[N+]1456.61453.0± 2.2kJ/mol28.03277 ±
0.00082
53518-13-1*1
Propynylidene [CH]=C=[CH]543.38546.38± 0.63kJ/mol38.0480 ±
0.0024
67152-18-5*0
Hypobromous acid cation O[Br+]974.82964.20± 0.64kJ/mol96.9108 ±
0.0010
154804-02-1*0
Cyclopropyne 791.3790.8± 1.4kJ/mol38.0480 ±
0.0024
60701-63-5*0
Cyclopropenyliumdiyl [CH+]1C#C11692.01694.9± 1.9kJ/mol37.0395 ±
0.0024
127476-05-5*0
Cyclopropynyl anion [CH-]1C#C1517.8520.8± 1.1kJ/mol37.0406 ±
0.0024
136861-42-2*0
Hypochlorous acid cation O[Cl+]998.91995.86± 0.90kJ/mol52.45949 ±
0.00095
71606-47-8*0
Nitrate O=[N+]([O-])[O-]-206.63± 0.18kJ/mol62.00549 ±
0.00090
14797-55-8*800
Hypofluorous acid anion O[F-]155.3154.7± 2.6kJ/mol36.00629 ±
0.00031
36505-07-4*2
Nitrogen hydride oxide [NH3+][O-]71.660.4± 2.0kJ/mol33.02996 ±
0.00037
38544-48-8*0
Nirous oxide anion [N-]=[N]=O99.296.6± 1.9kJ/mol44.01343 ±
0.00033
12274-12-3*0
Hydrogen chloride Cl-165.948± 0.026kJ/mol36.46064 ±
0.00090
7647-01-0*907
Aminomethyliumylidene [C+]N1168.31165.1± 2.2kJ/mol28.03277 ±
0.00082
86784-42-1*0
Cyclopentene C1CC=CC14.98± 0.42kJ/mol68.1170 ±
0.0040
142-29-0*590
Hydrogen chloride Cl-166.639± 0.025kJ/mol36.46064 ±
0.00090
7647-01-0*840
Nitroxyl anion N[O-]48.741.7± 2.0kJ/mol32.02257 ±
0.00034
51375-41-8*0
Tribromide Br[Br-]Br-287.6-308.0± 1.9kJ/mol239.7125 ±
0.0030
14522-80-6*0
Nitrosyl nitrite O=NON=O109.3105.2± 1.8kJ/mol76.01168 ±
0.00091
122413-35-8*2
Ethanol CCO-269.34-277.10± 0.21kJ/mol46.0684 ±
0.0017
64-17-5*500
Hydrogen chloride Cl-165.548± 0.027kJ/mol36.46064 ±
0.00090
7647-01-0*953
Methylammoniumyl C[NH2+]865.1851.2± 1.8kJ/mol31.05659 ±
0.00088
34516-31-9*0
1-Hydroxyethyl anion C[CH-]O-19.9-33.3± 2.9kJ/mol45.0610 ±
0.0017
88032-18-2*0
1,2-Propadien-1-yl-3-ylidene anion [C]=C=[C-]621.9629.3± 1.3kJ/mol36.0326 ±
0.0024
109292-47-9*0
Trifluorine cation FF[F+]1529.51527.4± 2.3kJ/mol56.9946610 ±
0.0000015
64710-22-1*0
2-Cyclopropyn-1-ylidene C1=C=C=1993.81000.6± 2.5kJ/mol36.0321 ±
0.0024
102508-15-6*2
Acetaldehyde anion CC=[O-]-61.8-72.1± 2.1kJ/mol44.0531 ±
0.0017
60427-04-5*0
Hydrogen chloride Cl-166.714± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*951
Propynylidyne anion [C-]1=C=C=1664.9672.2± 1.6kJ/mol36.0326 ±
0.0024
500574-36-7*0
Ketene cation C=C=[O+]882.20879.18± 0.13kJ/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
Oxoethenylium [CH+]=C=O1139.31142.1± 2.9kJ/mol41.0282 ±
0.0016
92056-63-8*0
Bicyclo[1.1.0]buta-1,3-diene-2,4-diyl C12=[C]C2=[C]11047.481055.08± 0.72kJ/mol48.0428 ±
0.0032
12184-80-4*0
Hydrooxonitrate [NH-]=O78.5975.67± 0.99kJ/mol31.01463 ±
0.00032
66057-02-1*0
Triazirine N1N=N1464.1457.6± 2.6kJ/mol43.02816 ±
0.00022
157-29-9*0
Ethynol cation C#[C+]O1063.51061.3± 2.9kJ/mol42.0361 ±
0.0016
84005-02-7*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
Hydroxyimidogen anion [N-]O229.9227.4± 2.3kJ/mol31.01463 ±
0.00032
*35337-59-8*0
Dioxirane anion C1[O-]O1-170.4-177.2± 3.9kJ/mol46.0259 ±
0.0010
*157-26-6*0
Peroxychloric acid O=Cl(=O)OO77.569.3± 2.6kJ/mol100.4582 ±
0.0015
177778-91-5*0
Dioxymethyl anion C=[O][O-]55.049.8± 1.4kJ/mol46.0259 ±
0.0010
93207-29-5*0
Hypochlorous acid anion O[Cl-]198.7198.3± 2.5kJ/mol52.46059 ±
0.00095
34524-94-2*0
Methylamine anion C[NH2-]83.969.0± 2.8kJ/mol31.05769 ±
0.00088
81096-79-9*0
Formyloxidanyl C(=O)[O]-125.57-126.93± 0.56kJ/mol45.0174 ±
0.0010
16499-21-1*0
Dioxiranyl O1[CH]O1216.2212.8± 2.4kJ/mol45.0174 ±
0.0010
120595-16-6*0
Deuterium hydride cation [H][2H+]1490.4981490.587± 0.000kJ/mol3.021493 ±
0.000070
12181-16-7*0
Oxobromonium Br[O+]1139.21131.4± 1.6kJ/mol95.9029 ±
0.0010
142315-39-7*0
2-Propanol CC(O)C-305.60-318.40± 0.32kJ/mol60.0950 ±
0.0025
67-63-0*500
1-Propanol CCCO-290.56-302.74± 0.24kJ/mol60.0950 ±
0.0025
71-23-8*500
Tetranitrogen cation [N]=NN=[N+]1392.81392.5± 1.5kJ/mol56.02641 ±
0.00028
12185-04-5*0
Hydroxyoxoammoniumyl O[N+]=O984.1977.6± 1.8kJ/mol47.01293 ±
0.00061
80371-48-8*0
Cyanogen bromide anion BrC#[N-]58.254.6± 3.8kJ/mol105.9220 ±
0.0013
54092-05-6*0
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
Acetic acid CC(=O)O-418.51-432.63± 0.52kJ/mol60.0520 ±
0.0017
64-19-7*0
Bromine dioxide [O]Br[O]167.1157.5± 3.0kJ/mol111.9028 ±
0.0012
21255-83-4*0
Dinitrogen pentoxide O=[N+]([O-])O[N+](=O)[O-]-41.06± 0.42kJ/mol108.0105 ±
0.0015
10102-03-1*500
Methoxycarbonyl CO[C]=O-150.1-158.0± 2.1kJ/mol59.0440 ±
0.0017
16481-04-2*1
Dioxygen O=O-0.000-0.000± 0.000kJ/mol31.99880 ±
0.00060
7782-44-7*1
Diazenium N[NH+]968.59957.33± 0.77kJ/mol31.03675 ±
0.00025
37369-93-0*0
Oxalic acid C(=O)(C(=O)O)O-710.8-721.4± 2.1kJ/mol90.0349 ±
0.0020
144-62-7*0
2-Chloro ozone anion ClO([O])[O-]-103.4-105.7± 3.2kJ/mol83.4514 ±
0.0013
*141801-67-4*0
Fluorine atom cation [F+]1758.3011760.599± 0.048kJ/mol18.99785462 ±
0.00000050
14701-13-4*0
Water O-285.838± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*589
Methanol anion [CH3-]O-89.0-99.7± 2.8kJ/mol32.04241 ±
0.00090
68474-04-4*0
Isocyanogen anion 386.6389.5± 3.0kJ/mol52.0354 ±
0.0016
*83951-85-3*2
Diisocyanogen cation [C]#[N+][N+]#[C-]1835.11837.8± 3.5kJ/mol52.0343 ±
0.0016
*78800-21-2*2
Ethanium [CH3+][H][CH3]888.8870.3± 1.8kJ/mol31.0764 ±
0.0017
24669-33-8*2
Ethanium [CH3+][H][CH3]895.2877.3± 1.9kJ/mol31.0764 ±
0.0017
24669-33-8*3
Hydroperoxyimidogen OO[N]103.399.7± 2.4kJ/mol47.01348 ±
0.00061
877456-58-1*1
Cyanoamidogen anion [NH-]C#N72.069.0± 1.8kJ/mol41.03267 ±
0.00082
67131-47-9*0
Cyanamide NC#N140.8134.5± 1.5kJ/mol42.04006 ±
0.00082
420-04-2*0
Diazomethylene [C]=N=[N]578.8579.5± 3.8kJ/mol40.02418 ±
0.00081
2468-81-7*0
Trichloromethylium [C+](Cl)(Cl)Cl854.24852.72± 0.96kJ/mol118.3683 ±
0.0028
27130-34-3*0
Dichloromethyliumyl [C+](Cl)Cl1121.61122.6± 1.8kJ/mol82.9156 ±
0.0020
55945-51-2*0
Ethylene anion C=[CH2-]231.6225.5± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*2
Formaldehyde anion C=[O-]-26.7-28.3± 2.0kJ/mol30.02653 ±
0.00087
27837-46-3*0
Hydrogen chloride Cl-165.981± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*829
Formaldehyde C=O196.044192.713± 0.098kJ/mol30.02598 ±
0.00087
50-00-0*1
Bromine atom [Br]117.917111.855± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*1
Nitric acid cation O[N+](=O)[O]1029.141020.08± 0.69kJ/mol63.01233 ±
0.00091
272109-63-4*0
Trichloroethene C(Cl)=C(Cl)Cl-48.7± 1.6kJ/mol131.3874 ±
0.0031
79-01-6*590
Aminomethyl anion [CH2-]N209.2199.0± 2.1kJ/mol30.04975 ±
0.00085
74215-21-7*0
Chlorosyl chloride cation ClCl[O+]1132.61130.8± 2.0kJ/mol86.9043 ±
0.0018
*86825-56-1*0
Chloromethane cation C[Cl+]1015.111008.34± 0.25kJ/mol50.4867 ±
0.0012
12538-71-5*0
1-Ethylium-1-yl [CH+]C1182.11174.7± 3.2kJ/mol28.0526 ±
0.0016
85944-79-2*0
Ethylidene anion [CH-]C325.8318.4± 1.9kJ/mol28.0537 ±
0.0016
35829-99-3*0
Fluorosyl fluoride cation FF[O+]1413.01413.4± 3.5kJ/mol53.99566 ±
0.00030
*86825-50-5*1
Peroxyhypochlorite ClO[O-]-249.23-248.20± 0.37kJ/mol67.4520 ±
0.0011
224299-14-3*0
Methylaminilium C[NH+]1134.81125.0± 2.1kJ/mol30.04865 ±
0.00085
49784-84-1*0
Fluorobromomethane C(F)Br-198.0-212.4± 5.5kJ/mol112.9290 ±
0.0013
373-52-4*0
Chloroniumyl ion [ClH+]1137.7971137.731± 0.0051kJ/mol36.46009 ±
0.00090
12258-94-5*0
Chlorine difluoride cation [Cl+]FF1346.31344.9± 2.1kJ/mol73.44896 ±
0.00090
86825-59-4*0
Fluorodibromomethane C(F)(Br)Br-160.0-179.5± 5.5kJ/mol191.8250 ±
0.0022
1868-53-7*0
Difluorochlorobromomethane C(F)(F)(Cl)Br-431.5-442.2± 5.5kJ/mol165.3642 ±
0.0016
353-59-3*0
Dichlorofluorobromomethane C(Cl)(Cl)(F)Br-230.2-240.0± 5.5kJ/mol181.8185 ±
0.0022
353-58-2*0
Dibromofluorochloromethane C(Br)(Br)(F)Cl-170.8-187.4± 5.5kJ/mol226.2698 ±
0.0023
353-55-9*0
Chlorine difluoride anion [Cl-]FF-319.0-319.1± 2.2kJ/mol73.45005 ±
0.00090
91419-41-9*0
Krypton cation [Kr+]1350.7561350.756± 0.000kJ/mol83.7995 ±
0.1000
16915-28-9*0
Difluoromethyliumyl [C+](F)F908.35908.78± 0.91kJ/mol50.00696 ±
0.00080
54250-40-7*0
Hydrogen fluoride F-321.05± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*903
Methanimine cation C=[NH+]1056.01049.1± 1.8kJ/mol29.04071 ±
0.00083
65130-65-6*0
Methanimine anion C=[NH-]224.3217.1± 2.2kJ/mol29.04181 ±
0.00083
127593-73-1*0
Ammonium radical [NH4]190.01179.43± 0.43kJ/mol18.03850 ±
0.00029
92075-50-8*0
Dibromine BrBr-2.16± 0.20kJ/mol159.8080 ±
0.0020
7726-95-6*800
Hydrogen fluoride F-321.04± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*888
Ozone cation O=[O+]=O1352.8701350.531± 0.041kJ/mol47.99765 ±
0.00090
12596-82-6*0
Hydrogen fluoride F-321.11± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*890
Hydrogen fluoride F-321.16± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*891
Hydrogen bromide Br-120.46± 0.16kJ/mol80.9119 ±
0.0010
10035-10-6*952
Aminomethyliumyl [CH][NH2+]1039.51031.8± 2.3kJ/mol29.04071 ±
0.00083
89302-94-3*0
Difluorophosgene cation C(F)(F)=[O+]653.41650.78± 0.57kJ/mol66.00636 ±
0.00085
73256-56-1*0
Difluorophosgene anion C(F)(F)=[O-]-603.6-605.5± 3.4kJ/mol66.00745 ±
0.00085
474815-26-4*0
Carbon atom [C]711.407716.892± 0.048kJ/mol12.01070 ±
0.00080
7440-44-0*1
Chlorohydroxymethylene Cl[C]OH13.911.0± 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
Chloryl ion O=[Cl+]=O1100.151097.49± 0.52kJ/mol67.4510 ±
0.0011
25052-55-5*0
Dibromophosgene C(Br)(Br)=O-144.18± 0.96kJ/mol187.8181 ±
0.0022
593-95-3*590
2-Chloroethanol ClCCO-315.10± 0.56kJ/mol80.5132 ±
0.0019
107-07-3*590
2-Bromoethanol BrCCO-274.83± 0.48kJ/mol124.9645 ±
0.0019
540-51-2*590
Hydrogen bromide Br-120.47± 0.16kJ/mol80.9119 ±
0.0010
10035-10-6*842
Imidogen anion [NH-]322.62322.67± 0.17kJ/mol15.015229 ±
0.000099
23841-33-0*0
Trioxidanyl OO[O]26.2823.01± 0.19kJ/mol49.00614 ±
0.00090
12500-78-6*2
Hypofluorous acid cation O[F+]1141.991138.98± 0.87kJ/mol36.00519 ±
0.00031
90243-22-4*0
Phenylium c1cccc[c+]11148.451135.67± 0.88kJ/mol77.1034 ±
0.0048
17333-73-2*2
Chlorosyl chloride anion ClCl[O-]-185.4-184.7± 2.3kJ/mol86.9053 ±
0.0018
*86825-55-0*0
Carbon atom [C]833.338838.485± 0.048kJ/mol12.01070 ±
0.00080
7440-44-0*2
m-Benzyne anion c1[c]ccc[c-]1444.1435.2± 1.3kJ/mol76.0965 ±
0.0048
249589-31-9*0
p-Benzyne anion c1c[c]cc[c-]1465.1455.5± 1.3kJ/mol76.0965 ±
0.0048
219298-17-6*0
Chloryl chloride ClCl([O])[O]126.1122.1± 1.7kJ/mol102.9042 ±
0.0019
117489-73-3*0
Benzylium c1ccc(cc1)[CH2+]929.66910.16± 0.63kJ/mol91.1299 ±
0.0056
6711-19-9*0
Hydrogen bromide Br-120.42± 0.16kJ/mol80.9119 ±
0.0010
10035-10-6*841
Aminomethylene anion [CH][NH2-]353.0346.1± 2.3kJ/mol29.04181 ±
0.00083
207914-86-1*0
Phenyloxoniumylidene c1ccc(cc1)[O+]902.9888.6± 2.4kJ/mol93.1028 ±
0.0048
41071-17-4*0
Fluorosyl fluoride anion FF[O-]-56.6-56.1± 2.4kJ/mol53.99675 ±
0.00030
*86825-57-2*1
Hydrogen difluoride cation [F+]F[H]1174.31171.3± 1.5kJ/mol39.004198 ±
0.000070
*126950-54-7*2
Ammonium chloride [NH4+].[Cl-]-311.728-314.889± 0.063kJ/mol53.49120 ±
0.00095
12125-02-9*510
Acetylene anion C#[CH-]380.1380.3± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*2
Fluorobenzene c1ccc(cc1)F-151.82-149.40± 0.89kJ/mol96.1023 ±
0.0048
462-06-6*500
Bromobenzene c1ccc(cc1)Br59.9± 1.3kJ/mol157.0079 ±
0.0049
108-86-1*500
Ammonium bromide [NH4+].[Br-]-253.48-270.05± 0.17kJ/mol97.9425 ±
0.0010
12124-97-9*510
Acetone CC(=O)C-244.51-247.63± 0.32kJ/mol58.0791 ±
0.0025
67-64-1*500
Tribromine BrBrBr155.8134.1± 3.2kJ/mol239.7120 ±
0.0030
11094-39-6*0
Propionaldehyde CCC=O-218.20-216.75± 0.29kJ/mol58.0791 ±
0.0025
123-38-6*500
Triazirinylium ion [N]1N=[N+]11608.81605.9± 1.6kJ/mol42.01967 ±
0.00021
92220-05-8*0
Monoammonium succinate OC(=O)CCC(=O)[O-].[NH4+]-1068.01± 0.72kJ/mol135.1186 ±
0.0035
38457-08-8*510
Diammonium succinate [O-]C(=O)CCC(=O)[O-].[NH4+].[NH4+]-1182.56± 0.48kJ/mol152.1492 ±
0.0035
2226-88-2*510
Nitrosyl nitrate O=NO[N+](=O)[O-]48.240.2± 1.8kJ/mol92.0111 ±
0.0012
15969-55-8*1
1-Methylethenylium C[C+]=C995.9986.4± 2.7kJ/mol41.0713 ±
0.0024
50457-57-3*0
Isocyanic fluoride FN=[C]301.3303.1± 1.8kJ/mol45.01584 ±
0.00080
16992-26-0*0
Formic acid C(=O)O-431.56-424.73± 0.21kJ/mol46.0254 ±
0.0010
64-18-6*500
Bromoniumyl [BrH+]1097.951090.10± 0.16kJ/mol80.9114 ±
0.0010
12258-64-9*0
1-Methylethenyl anion C[C-]=C199.2188.0± 2.8kJ/mol41.0723 ±
0.0024
65887-19-6*0
Hydrogen fluoride F-321.45± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*832
2-Propen-3-ylium-1-ylidyne [CH][CH][C+]1791.21792.8± 2.6kJ/mol38.0474 ±
0.0024
161054-36-0*0
Propenediylidene anion [CH][CH][C-]588.8590.1± 2.3kJ/mol38.0485 ±
0.0024
*161054-36-0*0
Hydroxyoxoammoniumyl O[N+]=O984.1977.6± 1.8kJ/mol47.01293 ±
0.00061
80371-48-8*1
Isocyanogen chloride ClN=[C]314.6316.2± 2.4kJ/mol61.4701 ±
0.0012
75754-69-7*0
(Z)-Diazene anion [H]/N=[N-]\[H]280.0273.3± 2.0kJ/mol30.02991 ±
0.00020
*86631-37-0*0
Carbon dioxide cation [C+](=O)=O1335.01335.5± 2.4kJ/mol44.00895 ±
0.00100
12181-61-2*1
Carbon monoxide anion [C]#[O-]30.033.7± 2.3kJ/mol28.01065 ±
0.00085
12539-63-8*0
Nitrous acid anion O[N-]=O-107.0-111.7± 2.4kJ/mol47.01403 ±
0.00061
256393-36-9*2
NON anion [N]O[N-]495.3492.8± 2.5kJ/mol44.01343 ±
0.00033
*227934-47-6*0
Peroxyhypochlorous acid anion OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*2
Iodine monochloride ICl-36.511-35.537± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*510
Acetic acid CC(=O)O-397.4-411.2± 1.2kJ/mol60.0520 ±
0.0017
64-19-7*2
Isocyanogen bromide BrN=[C]341.5335.8± 3.4kJ/mol105.9214 ±
0.0013
65997-98-0*0
Acetic acid CC(=O)O-484.93± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*839
Oxygen difluoride anion FO[F-]-202.1-201.9± 2.7kJ/mol53.99675 ±
0.00030
*7783-41-7*0
Trioxidanyl OO[O]25.3123.22± 0.13kJ/mol49.00614 ±
0.00090
12500-78-6*0
Methyl formate COC=O-386.13± 0.59kJ/mol60.0520 ±
0.0017
107-31-3*500
Hydroxylamine NO-97.1± 2.2kJ/mol33.02996 ±
0.00037
7803-49-8*1000
Ethylene glycol OCCO-448.71-455.23± 0.38kJ/mol62.0678 ±
0.0018
107-21-1*500
Hydrogen chloride Cl-166.567± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*839
Isocyanogen iodide IN=[C]341.7341.9± 4.9kJ/mol152.92191 ±
0.00080
66004-32-8*0
Oxalic acid C(=O)(C(=O)O)O-819.30± 0.46kJ/mol90.0349 ±
0.0020
144-62-7*500
Isocyanogen iodide anion IN=[C-]123.0125.1± 9.3kJ/mol152.92246 ±
0.00080
*66004-32-8*0
Dimethylamine CNC-43.71± 0.39kJ/mol45.0837 ±
0.0017
124-40-3*500
Nitrosyl nitrite anion O=NON=[O-]-103.1-106.2± 2.8kJ/mol76.01223 ±
0.00091
*122413-35-8*1
Dinitrogen dioxide O=NN=O172.88171.12± 0.14kJ/mol60.01228 ±
0.00062
16824-89-8*2
Trimethylamine CN(C)C-49.8± 1.0kJ/mol59.1103 ±
0.0025
75-50-3*500
Cyclobutane C1CCC13.92± 0.41kJ/mol56.1063 ±
0.0032
287-23-0*590
Cyanogen cation N#C[C+]#N1598.341600.57± 0.44kJ/mol52.0343 ±
0.0016
37354-81-7*0
Cyanogen anion N#CC#[N-]282.1285.2± 3.3kJ/mol52.0354 ±
0.0016
11118-88-0*0
Isocyanogen cation [C]#[N+]C#N1652.91654.2± 1.8kJ/mol52.0343 ±
0.0016
133415-63-1*0
Methylcyclopropane CC1CC11.80± 0.59kJ/mol56.1063 ±
0.0032
594-11-6*590
Methanol CO-235.20-238.53± 0.15kJ/mol32.04186 ±
0.00090
67-56-1*500
Diisocyanogen anion [C-]#[N+][N]#[C-]456.8463.7± 5.7kJ/mol52.0354 ±
0.0016
*78800-22-3*0
Diazoethenylidene cation [N]=[N]=C=[C+]1777.11779.1± 6.1kJ/mol52.0343 ±
0.0016
*130760-10-0*0
Diazoethenylidene anion [N]=[N]=C=[C-]536.0538.6± 5.8kJ/mol52.0354 ±
0.0016
*130760-11-1*0
3H-diazirin-3-ylidene-methylene [C]=C1N=N1833.7836.1± 3.6kJ/mol52.0349 ±
0.0016
204253-88-3*0
Isocyanomethyliumylidene [C][N+]#[C]1612.61618.1± 6.2kJ/mol38.0276 ±
0.0016
78271-45-1*0
Isocyanomethylidyne anion [C][N]#[C-]478.6482.3± 5.9kJ/mol38.0287 ±
0.0016
*53590-27-5*0
Methylamine CN-47.01± 0.36kJ/mol31.05714 ±
0.00088
74-89-5*500
Cyanomethyliumylidene [C+]C#N1711.11716.5± 6.0kJ/mol38.0276 ±
0.0016
76619-90-4*0
Cyanomethylidyne anion [C-]C#N406.7410.3± 5.7kJ/mol38.0287 ±
0.0016
12373-35-2*0
2,3-didehydro-1H-azirin-1-yl [N]1C#C1722.2726.2± 4.9kJ/mol38.0281 ±
0.0016
439586-06-8*0
Cyanoaminyliumyl [N]=[C+]=[N]1671.91673.3± 2.9kJ/mol40.02363 ±
0.00081
316122-03-9*0
Cyanoamidogen anion [N]=[C-]=[N]210.89210.90± 0.81kJ/mol40.02473 ±
0.00081
189879-95-6*0
Cyanamide NC#N58.89± 0.54kJ/mol42.04006 ±
0.00082
420-04-2*500
Diazomethyliumyl [C+]=N=[N]1641.81643.6± 4.3kJ/mol40.02363 ±
0.00081
307495-90-5*0
Diazomethylene anion [C-]=N=[N]407.9408.0± 3.9kJ/mol40.02473 ±
0.00081
205498-92-6*0
Deuterium hydride [H][2H]0.3280.319± 0.000kJ/mol3.022042 ±
0.000070
13983-20-5*0
Methanol dimer CO.CO-398.3-419.0± 1.4kJ/mol64.0837 ±
0.0018
42845-44-3*0
Isodiazene anion [N-]N380.9374.0± 2.1kJ/mol30.02991 ±
0.00020
*63986-30-1*0
1-Ethenylium-1-yl [C+]=C1507.11507.1± 2.1kJ/mol26.0367 ±
0.0016
80541-07-7*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
Dioxiranylidene cation [C+]1OO11409.11410.3± 2.6kJ/mol44.00895 ±
0.00100
*138832-57-2*0
Trifluorine FFF80.681.9± 2.6kJ/mol56.9952096 ±
0.0000015
73455-86-4*0
Chlorine chlorite ClO[Cl]=O177.4175.0± 2.2kJ/mol102.9042 ±
0.0019
105206-44-8*2
Cyclopropyl anion C1C[CH-]1263.5250.8± 2.5kJ/mol41.0723 ±
0.0024
1724-45-4*0
Dioxiranylidene anion [C-]1OO1-110.2-109.7± 3.0kJ/mol44.01005 ±
0.00100
*138832-58-3*0
Carbon monoxide [C-]#[O+]465.581469.288± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*1
Trihydrogen [H]1[H][H]1756.931754.146± 0.015kJ/mol3.02382 ±
0.00021
12184-91-7*2
Hydrogen fluoride F-321.02± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*887
Hydrogen chloride Cl-166.743± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*842
1,1,1-Trichloroethane CC(Cl)(Cl)Cl-177.63± 0.52kJ/mol133.4033 ±
0.0031
71-55-6*500
Trioxidane OOO-81.71-90.31± 0.72kJ/mol50.01408 ±
0.00091
14699-99-1*0
Nitrogen sesquioxide cation O=N-[N+](=O)[O]1027.71023.8± 3.4kJ/mol76.01113 ±
0.00091
*10544-73-7*0
Vinyl chloride C=CCl-2.71.9± 1.9kJ/mol62.4979 ±
0.0018
75-01-4*500
Poly(vinylchloride) C{-}(Cl)C{+n}-84.6-94.0± 1.3kJ/mol62.4979 ±
0.0018
9002-86-2*500
Paraformaldehyde C=O-179.2± 1.6kJ/mol30.02598 ±
0.00087
30525-89-4*500
1,1-Dichloroethene C=C(Cl)Cl-23.82± 0.51kJ/mol96.9427 ±
0.0024
75-35-4*500
Isoprene CC(=C)C=C48.67± 0.73kJ/mol68.1170 ±
0.0040
78-79-5*500
n-Hexane CCCCCC-180.03-198.69± 0.34kJ/mol86.1754 ±
0.0049
110-54-3*500
Oxadiazirine [N+]1=NO11509.91507.4± 2.4kJ/mol44.01233 ±
0.00033
*227934-45-4*0
Cyclohexane C1CCCCC1-156.33± 0.36kJ/mol84.1595 ±
0.0049
110-82-7*500
Nitrato O=[N+](O)O1290.551285.84± 0.86kJ/mol62.00439 ±
0.00090
133057-96-2*0
Dihydrogen fluoride F.H-56.5-54.2± 1.7kJ/mol21.01428 ±
0.00014
12592-22-2*2
Dichloromethane C(Cl)Cl-123.42± 0.50kJ/mol84.9320 ±
0.0020
75-09-2*590
n-Heptane CCCCCCC-201.78-224.23± 0.48kJ/mol100.2019 ±
0.0057
142-82-5*500
Oxygen difluoride cation FO[F+]1292.101289.58± 0.66kJ/mol53.99566 ±
0.00030
39432-25-2*0
n-Octane CCCCCCCC-226.70-249.82± 0.67kJ/mol114.2285 ±
0.0065
111-65-9*500
Nitric acid O[N+](=O)[O-]-186.85± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*801
1,5-Hexadiene C=CCCC=C54.39± 0.32kJ/mol82.1436 ±
0.0049
592-42-7*500
1-Propynylium CC#[C+]1547.11545.1± 3.1kJ/mol39.0554 ±
0.0024
24858-94-4*0
Hydrogen peroxide OO-193.185-187.368± 0.079kJ/mol34.01468 ±
0.00062
7722-84-1*500
1,2-Propadien-1-ylium-1-yl-3-ylidene [C]=C=[C+]1982.11991.2± 2.2kJ/mol36.0316 ±
0.0024
118090-85-0*1
Trioxirane O1OO1272.9270.3± 1.3kJ/mol47.99820 ±
0.00090
153851-84-4*0
Ammonia anion [NH3-]94.387.3± 2.4kJ/mol17.03111 ±
0.00022
37353-00-7*0
Difluoromethylene anion [C-](F)F-211.21-209.99± 0.60kJ/mol50.00805 ±
0.00080
66212-40-6*0
Nitric acid O[N+](=O)[O-]-197.76± 0.18kJ/mol63.01288 ±
0.00091
7697-37-2*805
Nitrosyl nitrite O=NON=O125.7120.4± 2.1kJ/mol76.01168 ±
0.00091
122413-35-8*3
Fluoromethylidyne anion [C-]F200.8204.3± 1.9kJ/mol31.00965 ±
0.00080
33412-12-3*0
Hydrochlorate ion [ClH-]-25.2-24.2± 2.5kJ/mol36.46119 ±
0.00090
63099-75-2*0
Cycloprop-1-enylium C1C=[C+]11502.31498.1± 2.2kJ/mol39.0554 ±
0.0024
117067-78-4*0
Cycloprop-1-enyl anion C1C=[C-]1373.5369.0± 2.2kJ/mol39.0565 ±
0.0024
80251-77-0*0
Oxygen atom hexacation [O+6]42035.2842037.14± 0.12kJ/mol15.99611 ±
0.00030
14158-22-6*0
Nitric acid trihydrate O[N+](=O)[O-].O.O.O-1062.12-1055.27± 0.21kJ/mol117.0587 ±
0.0019
13444-83-2*500
1,2-Difluoroacetylene cation F[C+]#CF1081.21084.3± 1.5kJ/mol62.0177 ±
0.0016
268566-70-7*0
Dioxymethylidyne cation [C+]O[O]1436.61439.1± 2.7kJ/mol44.00895 ±
0.00100
*791121-04-5*2
Propane cation CC[CH3+]974.6954.7± 1.7kJ/mol44.0951 ±
0.0025
34479-70-4*0
Azide ion [N]N=[N-]272.61± 0.48kJ/mol42.02077 ±
0.00021
14343-69-2*800
Dihydrogen cation [H][H+]1489.0601488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*1
Nitric acid monohydrate O[N+](=O)[O-].O-479.18-472.68± 0.19kJ/mol81.0282 ±
0.0012
13444-82-1*500
Carbon dioxide anion [C-](=O)=O-340.6-340.1± 2.2kJ/mol44.01005 ±
0.00100
14485-07-5*0
NON cation [N]O[N+]1443.91444.1± 2.8kJ/mol44.01233 ±
0.00033
*227934-46-5*0
Peroxyhypochlorous acid cation OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*1
Chloro(chlorooxy)methylene Cl[C]OCl73.573.7± 3.6kJ/mol98.9155 ±
0.0020
479587-31-0*2
Hydrogen difluoride cation [F+]F[H]1267.61265.4± 4.1kJ/mol39.004198 ±
0.000070
*126950-54-7*1
Cycloprop-2-enyl anion C1=C[CH-]1514.8511.8± 2.2kJ/mol39.0565 ±
0.0024
20829-57-6*0
Chlorooxomethylium Cl[C+]=O783.7783.9± 2.2kJ/mol63.4623 ±
0.0012
38264-03-8*0
Hydrogen difluoride cation F[H][F+]1241.1238.± 17.kJ/mol39.004198 ±
0.000070
126950-54-7*1
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
2-Iodoethanol ICCO-207.3± 2.4kJ/mol171.9650 ±
0.0017
624-76-0*590
Dioxymethylidyne cation [C+]O[O]1388.21391.7± 3.2kJ/mol44.00895 ±
0.00100
*791121-04-5*101
1,3-Butadiyne cation C#CC#[CH+]1440.201442.07± 0.86kJ/mol50.0581 ±
0.0032
55468-55-8*0
Tricarbon dioxide cation O=C=[C+]=C=O928.4931.9± 1.4kJ/mol68.0304 ±
0.0025
151528-67-5*0
Tricarbon dioxide anion O=C=[C-]=C=O-134.0-130.3± 3.2kJ/mol68.0314 ±
0.0025
109362-94-9*0
Benzene anion c1ccc(cc1)[H-]209.0197.1± 1.2kJ/mol78.1124 ±
0.0048
34562-85-1*0
Peroxychlorous acid O=ClOO103.597.7± 2.5kJ/mol84.4588 ±
0.0013
177778-92-6*2
Tetrazete N1=NN=N1764.9759.0± 1.8kJ/mol56.02696 ±
0.00028
42851-09-2*0
Hydraziniumyl N[NH2+]886.6873.2± 2.0kJ/mol32.04469 ±
0.00031
20771-51-1*0
Difluorodioxidanium FO[O+]F1283.61279.1± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*1
o-Benzyne C1=CC#CC=C1625.6616.3± 1.1kJ/mol76.0960 ±
0.0048
462-80-6*1
Chlorodioxidenium ClO[O+]1202.71200.4± 3.4kJ/mol67.4510 ±
0.0011
64710-10-7*0
Hydrazine NN57.2350.67± 0.18kJ/mol32.04524 ±
0.00031
302-01-2*500
Tetraoxodinitrogen cation O=N(=O)[N+](=O)=O1030.61025.1± 2.6kJ/mol92.0105 ±
0.0012
64476-91-1*0
m-Benzyne c1[c]ccc[c]1527.0518.5± 1.2kJ/mol76.0960 ±
0.0048
1828-89-3*0
Hydrogen chloride Cl-166.107± 0.024kJ/mol36.46064 ±
0.00090
7647-01-0*830
p-Benzyne cation c1c[c]cc[c+]11425.81418.5± 2.1kJ/mol76.0954 ±
0.0048
121058-09-1*0
p-Benzyne c1c[c]cc[c]1587.1577.6± 1.2kJ/mol76.0960 ±
0.0048
3355-34-8*0
Toluene c1ccc(cc1)C19.8712.11± 0.34kJ/mol92.1384 ±
0.0056
108-88-3*500
Hydronium radical O.[H]-18.5-21.6± 2.1kJ/mol19.02322 ±
0.00037
12168-76-2*100
Ethylbenzene c1ccc(cc1)CC-12.55± 0.55kJ/mol106.1650 ±
0.0064
100-41-4*500
Phenylethene c1ccc(cc1)C=C104.29± 0.48kJ/mol104.1491 ±
0.0064
100-42-5*500
Hydrogen bromide Br-120.32± 0.16kJ/mol80.9119 ±
0.0010
10035-10-6*839
Phenylacetylene c1ccc(cc1)C#C273.4± 1.1kJ/mol102.1332 ±
0.0064
536-74-3*500
Phenol c1ccc(cc1)O-146.32-162.17± 0.68kJ/mol94.1112 ±
0.0048
108-95-2*500
Cyclopropenylidene anion C1=[C-]=C1544.3543.8± 2.2kJ/mol38.0485 ±
0.0024
*16165-40-5*0
Benzaldehyde c1ccc(cc1)C=O-85.7-86.7± 1.1kJ/mol106.1219 ±
0.0056
100-52-7*500
Carbide [C]=[C-]504.86511.43± 0.52kJ/mol24.0219 ±
0.0016
12595-78-7*0
Fluorobenzene anion c1ccc(cc1)[F-]-18.3-30.2± 1.8kJ/mol96.1029 ±
0.0048
34561-55-2*0
Peroxynitrous acid OON=O-6.10-12.73± 0.36kJ/mol63.01288 ±
0.00091
14691-52-2*0
Tetraazatetrahedrane N12N3N1N23763.7757.2± 1.7kJ/mol56.02696 ±
0.00028
12596-63-3*0
Bromosyl bromide BrBr[O]178.6162.8± 2.1kJ/mol175.8074 ±
0.0020
68322-97-4*0
Iodobenzene cation c1ccc(cc1)[I+]1022.71007.2± 1.0kJ/mol204.0078 ±
0.0048
38406-85-8*0
Dioxygen difluoride [O][O](F)F75.171.6± 3.6kJ/mol69.99561 ±
0.00060
183051-89-0*0
Hydrazoic acid cation N=[N+]=[N]1333.651327.98± 0.83kJ/mol43.02761 ±
0.00022
58852-14-5*0
Nitrobenzene c1ccc(cc1)[N+](=O)[O-]6.4± 1.4kJ/mol123.1094 ±
0.0049
98-95-3*500
Perchloryl cation O=[Cl+](=O)[O]1252.01246.3± 2.5kJ/mol83.4504 ±
0.0013
23594-88-9*0
Hydrazoic acid anion N=[N]=[N-]309.0302.7± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*1
Nitromethane C[N+](=O)[O-]-114.19-113.00± 0.43kJ/mol61.0401 ±
0.0010
75-52-5*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
Trifluoroethylene FC(F)=CF-482.7-487.7± 8.4kJ/mol82.0245 ±
0.0016
359-11-5*0
Norbornadiene C1C2C=CC1C=C2237.9212.5± 1.2kJ/mol92.1384 ±
0.0056
121-46-0*0
Norbornadiene C1C2C=CC1C=C2179.1± 1.1kJ/mol92.1384 ±
0.0056
121-46-0*500
2,3-Butanedione CC(=O)C(=O)C-365.54± 0.54kJ/mol86.0892 ±
0.0033
431-03-8*500
2,3-Butanedione CC(=O)C(=O)C-310.19-326.75± 0.70kJ/mol86.0892 ±
0.0033
431-03-8*0
Succinic acid OC(=O)CCC(=O)O-918.57-940.30± 0.13kJ/mol118.0880 ±
0.0034
110-15-6*500
1,2-Diiodoethane C(I)CI87.7873.12± 0.90kJ/mol281.8621 ±
0.0016
624-73-7*0
1,2-Diiodoethane C(I)CI9.25± 0.60kJ/mol281.8621 ±
0.0016
624-73-7*500
1,1-Dibromoethane CC(Br)Br-9.2-36.3± 7.8kJ/mol187.8612 ±
0.0026
557-91-5*0
Dihydrogen [H][H]1.4170.019± 0.000kJ/mol2.01588 ±
0.00014
1333-74-0*1
Xenon hydride cation [Xe+][H]1038.151036.37± 0.89kJ/mol132.2974 ±
0.0200
37276-91-8*0
Nitrosyl nitrate O=NO[N+](=O)[O-]60.552.5± 2.0kJ/mol92.0111 ±
0.0012
15969-55-8*2
Hydroxylamine NO-33.24-43.61± 0.50kJ/mol33.02996 ±
0.00037
7803-49-8*0
Carbon monoxide [C-]#[O+]-113.802-110.522± 0.026kJ/mol28.01010 ±
0.00085
630-08-0*2
Dioxofluorine cation [O]F[O+]1667.01664.8± 2.8kJ/mol50.99665 ±
0.00060
223566-05-0*0
Hydroxyoxoammoniumyl O[N+]=O1014.71008.4± 2.0kJ/mol47.01293 ±
0.00061
80371-48-8*2
Nitrous acid anion O[N-]=O-106.3-110.2± 2.5kJ/mol47.01403 ±
0.00061
256393-36-9*1
Water trimer O.O.O-762.75-776.85± 0.21kJ/mol54.04584 ±
0.00099
31014-12-7*0
Methylene [CH2]391.03391.59± 0.12kJ/mol14.02658 ±
0.00081
2465-56-7*0
Hydrazoic acid N=[N+]=[N-]272.61± 0.48kJ/mol43.02816 ±
0.00022
7782-79-8*800
mu-Oxodichlorine cation Cl[O+]Cl1130.441126.83± 0.63kJ/mol86.9043 ±
0.0018
51174-96-0*0
Nitrogen atom [N]470.579472.441± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*1
mu-Oxodichlorate anion Cl[O-]Cl-147.8-147.7± 2.5kJ/mol86.9053 ±
0.0018
365546-30-1*0
Polyoxymethylene C=O-170.89± 0.21kJ/mol30.02598 ±
0.00087
9002-81-7*500
Trihydrogen cation [H]1[H+][H]11110.3041106.697± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*2
Dioxaziridine N1OO1277.2270.5± 2.0kJ/mol47.01348 ±
0.00061
67394-35-8*0
Propylene cation CC=[CH2+]975.07962.11± 0.35kJ/mol42.0792 ±
0.0024
34504-10-4*0
Cyclopentadiene C1C=CC=C1108.73± 0.61kJ/mol66.1011 ±
0.0040
542-92-7*590
Hydrogen iodide I-56.824± 0.089kJ/mol127.912410 ±
0.000076
10034-85-2*800
Formaldehyde C=O-171.16± 0.59kJ/mol30.02598 ±
0.00087
50-00-0*800
Ethynylene [C]=[C]820.28826.85± 0.27kJ/mol24.0214 ±
0.0016
12070-15-4*2
Dihydrogen anion [H][H-]253.8254.7± 1.2kJ/mol2.01643 ±
0.00014
12184-89-3*0
Tetrabromomethane C(Br)(Br)(Br)Br49.0± 1.4kJ/mol331.6267 ±
0.0041
558-13-4*500
Tetraiodomethane C(I)(I)(I)I392.5± 8.0kJ/mol519.62858 ±
0.00081
507-25-5*500
Methyl bromide CBr-55.90-58.92± 0.28kJ/mol94.9385 ±
0.0013
74-83-9*590
Tetroxidane OOOO-33.8-44.3± 2.4kJ/mol66.0135 ±
0.0012
29683-94-1*0
Dihydrogen cation [H][H+]1488.3641488.480± 0.000kJ/mol2.01533 ±
0.00014
12184-90-6*2
Hydrogen peroxide OO-129.492-135.478± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*2
Acetic acid CC(=O)O-484.91± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*833
Trioxirane cation O1O[O+]11444.61442.4± 2.2kJ/mol47.99765 ±
0.00090
*153851-84-4*0
Acetic acid CC(=O)O-484.96± 0.23kJ/mol60.0520 ±
0.0017
64-19-7*850
Isocyanogen bromide anion BrN=[C-]105.4102.2± 4.6kJ/mol105.9220 ±
0.0013
*238754-53-5*0
Dioxofluorine anion [O]F[O-]155.9154.3± 2.5kJ/mol50.99775 ±
0.00060
*175861-93-5*0
Peroxyhypochlorous acid cation OO[Cl+]1050.81045.1± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*2
1,2-Propadien-1-ylium-1-yl-3-ylidene [C]=C=[C+]1947.01954.9± 2.0kJ/mol36.0316 ±
0.0024
118090-85-0*0
Fluorine atom [F]77.25379.038± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*1
1-Hydroxyethyl C[CH]O-42.00-55.43± 0.65kJ/mol45.0605 ±
0.0017
2348-46-1*0
Hydroxylamine NO-107.62± 0.66kJ/mol33.02996 ±
0.00037
7803-49-8*500
Methyl formate COC=O-344.73-357.78± 0.59kJ/mol60.0520 ±
0.0017
107-31-3*0
Oxygen atom pentacation [O+5]28708.78828710.646± 0.053kJ/mol15.99666 ±
0.00030
14127-66-3*0
Deuteride [2H-]146.991148.904± 0.0021kJ/mol2.01465035791 ±
0.00000000040
14452-69-8*0
Hydrogen peroxide cation O[OH+]930.4923.6± 1.0kJ/mol34.01413 ±
0.00062
12325-10-9*22
Hydroxymethylene [CH]O112.70108.94± 0.28kJ/mol30.02598 ±
0.00087
19710-56-6*0
Chlorine atom [Cl]119.621121.228± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*1
Ethyl bromide CCBr-55.52-91.05± 0.27kJ/mol108.9651 ±
0.0019
74-96-4*500
Oxonium [OH3+]605.84599.09± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*2
Vinyl iodide C=CI139.7130.8± 1.2kJ/mol153.9497 ±
0.0016
593-66-8*0
Trihydrogen [H]1[H][H]1215.9218.3± 1.1kJ/mol3.02382 ±
0.00021
12184-91-7*100
Peroxyhypochlorous acid anion OO[Cl-]-2.9-3.3± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*1
Hydrogen peroxide cation O[OH+]896.57889.59± 0.58kJ/mol34.01413 ±
0.00062
12325-10-9*11
Tribromide Br[Br-]Br-129.29± 0.26kJ/mol239.7125 ±
0.0030
14522-80-6*800
Chlorine trifluoride cation F[Cl+](F)F1053.41049.1± 2.5kJ/mol92.44736 ±
0.00090
478167-77-0*0
Oxygen atom octacation [O+8]197447.75197449.60± 0.12kJ/mol15.99501 ±
0.00030
21450-98-6*0
2-Chloro ozone ClO([O])[O]265.8265.3± 3.7kJ/mol83.4509 ±
0.0013
*141801-66-3*0
Hydrazoic acid N=[N+]=[N-]257.62± 0.48kJ/mol43.02816 ±
0.00022
7782-79-8*1000
Oxygen atom heptacation [O+7]113369.48113371.34± 0.12kJ/mol15.99556 ±
0.00030
14274-89-6*0
Acetaldehyde CC=O-186.94-191.66± 0.33kJ/mol44.0526 ±
0.0017
75-07-0*500
Tetraoxodinitrate anion O=N(=O)[N-](=O)=O-184.6-187.8± 2.4kJ/mol92.0116 ±
0.0012
63552-02-3*0
Tricarbon dioxide O=C=C=C=O-131.6-116.5± 1.4kJ/mol68.0309 ±
0.0025
504-64-3*500
Oxygen atom tetracation [O+4]17719.20717721.064± 0.025kJ/mol15.99721 ±
0.00030
14127-65-2*0
Cyclopropane cation C1[CH2+]C11022.31006.9± 1.8kJ/mol42.0792 ±
0.0024
34496-93-0*0
Iodine atom [I]198.109197.709± 0.0021kJ/mol126.904470 ±
0.000030
14362-44-8*2
1,3-Butadiyn-4-ylium-1-yl [C]#CC#[C+]2109.92120.5± 2.9kJ/mol48.0423 ±
0.0032
124708-46-9*0
m-Benzyne c1[c]ccc[c]1614.6605.2± 1.4kJ/mol76.0960 ±
0.0048
1828-89-3*1
Bromodioxy BrO[O]118.2109.1± 4.3kJ/mol111.9028 ±
0.0012
67177-47-3*0
Hydrogen fluoride F-321.13± 0.16kJ/mol20.006343 ±
0.000070
7664-39-3*906
Difluorodioxidanium FO[O+]F1287.21283.0± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*2
Iodine monochloride ICl-24.048± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*590
Oxoniumyl ion [H][O+][H]978.464975.561± 0.029kJ/mol18.01473 ±
0.00033
56583-62-1*1
Dinitrogen dimer -0.880.84± 0.67kJ/mol56.02696 ±
0.00028
*7727-37-9*0
Oxygen atom trication [O+3]10249.92910252.880± 0.018kJ/mol15.99775 ±
0.00030
14127-64-1*0
Trihydrogen [H]1[H][H]1745.878743.094± 0.062kJ/mol3.02382 ±
0.00021
12184-91-7*1
Diatomic bromine cation Br[Br+]1060.321045.37± 0.23kJ/mol159.8075 ±
0.0020
12595-71-0*0
Ammonium hydroxide [NH4+].[OH-]-366.726± 0.062kJ/mol35.04584 ±
0.00047
1336-21-6*1000
1,3-Butadiynyl anion [C]#CC#[C-]677.7686.8± 1.2kJ/mol48.0433 ±
0.0032
59158-53-1*0
Difluorine cation F[F+]1514.3011514.475± 0.013kJ/mol37.9962578 ±
0.0000010
12184-86-0*0
Hydrazine monohydrate NN.O-242.68± 0.19kJ/mol50.06052 ±
0.00053
7803-57-8*500
Dihydrogen [H][H]-0.000-0.058± 0.000kJ/mol2.01588 ±
0.00014
1333-74-0*2
Nitrosyl nitrite anion O=NON=[O-]-100.3-103.5± 2.9kJ/mol76.01223 ±
0.00091
*122413-35-8*2
Hypochloroperoxoous acid, hydroxy ester OOOCl49.542.6± 2.5kJ/mol84.4588 ±
0.0013
928652-99-7*2
Methylaminyliumyl C[N+]1388.31382.0± 2.6kJ/mol29.04071 ±
0.00083
56924-51-7*1
Acetylene anion C#[CH-]356.9356.7± 1.9kJ/mol26.0378 ±
0.0016
50443-89-5*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
3H-Diazirin-3-ylidene [C]1N=N1578.0578.4± 4.0kJ/mol40.02418 ±
0.00081
253308-70-2*0
Water O-286.308-292.749± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*510
Tribromine cation Br[Br+]Br1035.91013.2± 2.6kJ/mol239.7115 ±
0.0030
33105-86-1*0
Trioxygen difluoride FOOOF112.5107.3± 1.2kJ/mol85.99501 ±
0.00090
16829-28-0*0
Hydrazoic acid anion N=[N]=[N-]316.2310.0± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*2
Water O-238.938-241.842± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*2
(Z)-1,2-Diiodoethene 215.71207.43± 0.44kJ/mol279.8462 ±
0.0016
590-26-1*0
(E)-1,2-Diiodoethene 214.82207.43± 0.44kJ/mol279.8462 ±
0.0016
590-27-2*0
Fluorosyl fluoride FF[O]227.225.± 21.kJ/mol53.99621 ±
0.00030
86825-57-2*2
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
1,2-Dibromoethane C(Br)CBr-79.5± 1.3kJ/mol187.8612 ±
0.0026
106-93-4*500
Oxygen atom dication [O++]4949.4594953.000± 0.013kJ/mol15.99830 ±
0.00030
14127-63-0*0
Deuterium molecule cation [2H][2H+]1492.2861492.361± 0.000kJ/mol4.02765497609 ±
0.00000000080
12184-84-8*0
Hydroxymethylene cation [CH+]O971.9968.3± 1.4kJ/mol30.02543 ±
0.00087
135395-06-1*0
Chlorine pentafluoride cation F[Cl+](F)(F)(F)F1005.8996.8± 3.3kJ/mol130.44417 ±
0.00090
478167-78-1*0
Water dimer cation O.[OH2+]556.8546.3± 3.0kJ/mol36.03001 ±
0.00066
158061-35-9*0
Hydroxymethylene anion [CH-]O147.2144.2± 1.6kJ/mol30.02653 ±
0.00087
207914-87-2*0
Diazene cation N=[NH+]1132.461125.53± 0.66kJ/mol30.02881 ±
0.00020
76986-17-9*1
Cyanogen iodide cation I[C+]#N1271.31271.2± 1.6kJ/mol152.92136 ±
0.00080
34749-78-5*0
Peroxychlorous acid O=ClOO96.290.6± 2.1kJ/mol84.4588 ±
0.0013
177778-92-6*0
Oxirene C1=CO1272.85272.15± 0.98kJ/mol42.0367 ±
0.0016
157-18-6*0
Nitrogen atom anion [N-]487.6489.9± 2.5kJ/mol14.007289 ±
0.000070
17778-87-9*0
Chlorine chlorite ClO[Cl]=O168.6166.4± 1.3kJ/mol102.9042 ±
0.0019
105206-44-8*0
Hydrogen cyanide anion [CH-]#N129.516129.038± 0.091kJ/mol27.02593 ±
0.00081
12334-27-9*0
2-Hydroxyethylium [CH2+]CO1019.21007.0± 1.7kJ/mol45.0600 ±
0.0017
38607-31-7*0
Dinitrogen dioxide O=NN=O192.2188.6± 1.8kJ/mol60.01228 ±
0.00062
16824-89-8*1
Water anion [H][O-][H]-50.1-53.0± 4.3kJ/mol18.01583 ±
0.00033
12259-30-2*0
Chlorohydroxymethyl [CH](Cl)O-54.7-60.4± 1.1kJ/mol65.4787 ±
0.0012
147139-06-8*0
Hydrazoic acid N=[N+]=[N-]261.48± 0.65kJ/mol43.02816 ±
0.00022
7782-79-8*500
Isocyanic fluoride cation FN=[C+]1618.41619.0± 4.0kJ/mol45.01529 ±
0.00080
*16992-26-0*0
Methane anion [CH4-]27.319.4± 5.1kJ/mol16.04301 ±
0.00085
27680-53-1*0
Oxonium [OH3+]605.90599.09± 0.17kJ/mol19.02267 ±
0.00037
13968-08-6*1
Carbon atom [C]1114.9701120.117± 0.048kJ/mol12.01070 ±
0.00080
7440-44-0*3
O--HH Complex [H][H].[O]247.2248.2± 2.0kJ/mol18.01528 ±
0.00033
*7732-18-5*102
Isocyanic fluoride anion FN=[C-]74.376.0± 5.7kJ/mol45.01639 ±
0.00080
357426-78-9*0
Nitrogen atom [N]700.554702.457± 0.024kJ/mol14.006740 ±
0.000070
17778-88-0*2
Hydrobromate ion [BrH-]-5.7-12.2± 4.3kJ/mol80.9125 ±
0.0010
85532-97-4*0
Hydrogen peroxide OO-190.78± 0.30kJ/mol34.01468 ±
0.00062
7722-84-1*800
Fluoro(fluorooxy)methylene F[C]OF-135.8-137.0± 2.1kJ/mol66.00691 ±
0.00085
479587-30-9*0
Trihydrogen [H]1[H][H]1745.878743.199± 0.062kJ/mol3.02382 ±
0.00021
12184-91-7*0
Dichlorine cation Cl[Cl+]1108.2871108.266± 0.013kJ/mol70.9049 ±
0.0018
12595-90-3*0
Fluorosyl fluoride anion FF[O-]-147.2-146.9± 3.0kJ/mol53.99675 ±
0.00030
*86825-57-2*0
Formic acid cation [CH+](=O)O721.92715.38± 0.26kJ/mol46.0248 ±
0.0010
50614-05-6*0
(Methylamino)methyl anion CN[CH2-]200.9184.0± 3.2kJ/mol44.0763 ±
0.0017
*31277-25-5*0
Isocyanogen chloride anion ClN=[C-]102.8107.3± 3.9kJ/mol61.4707 ±
0.0012
923019-39-0*0
Diazene anion N=[NH-]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
100429-75-2*0
Phosgene cation C(=[O+])(Cl)Cl897.1896.0± 1.7kJ/mol98.9150 ±
0.0020
73249-38-4*0
Phosgene C(=O)(Cl)Cl-242.72± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*501
Phosgene C(=O)(Cl)Cl-255.43-242.72± 0.27kJ/mol98.9155 ±
0.0020
75-44-5*502
Diiodine cation I[I+]963.523960.408± 0.018kJ/mol253.808391 ±
0.000060
28712-14-3*0
Chloro(chlorooxy)methylene Cl[C]OCl73.573.7± 3.6kJ/mol98.9155 ±
0.0020
479587-31-0*0
Chloro(chlorooxy)methylene Cl[C]OCl112.114.± 16.kJ/mol98.9155 ±
0.0020
479587-31-0*1
Formic acid anion [CH-](=O)O-256.2-262.3± 1.8kJ/mol46.0259 ±
0.0010
19066-82-1*0
Methyl fluoride cation C[F+]981.81974.32± 0.62kJ/mol34.03237 ±
0.00083
59122-96-2*0
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
Methyl fluoride CF-245.74± 0.45kJ/mol34.03292 ±
0.00083
593-53-3*590
(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
O--HH Complex [H][H].[O]247.6248.9± 2.7kJ/mol18.01528 ±
0.00033
*7732-18-5*101
Chloromethane CCl-105.96-101.99± 0.25kJ/mol50.4872 ±
0.0012
74-87-3*590
Chloroformyl anion Cl[C-]=O-356.5-352.9± 3.3kJ/mol63.4633 ±
0.0012
41976-93-6*0
Water O-286.310-292.751± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*509
Diazene N=N207.09199.96± 0.44kJ/mol30.02936 ±
0.00020
3618-05-1*1
Fluorosyl fluoride cation FF[O+]1413.01413.4± 3.5kJ/mol53.99566 ±
0.00030
*86825-50-5*0
Dinitrogen tetraoxide O=N(=O)N(=O)=O-37.87-27.02± 0.19kJ/mol92.0111 ±
0.0012
10544-72-6*500
Nitrosyl nitrite anion O=NON=[O-]-103.1-106.2± 2.8kJ/mol76.01223 ±
0.00091
*122413-35-8*0
Diazene anion N=[NH-]265.5258.7± 2.0kJ/mol30.02991 ±
0.00020
100429-75-2*1
Ethane anion C[CH3-]41.926.6± 4.4kJ/mol30.0696 ±
0.0017
54064-82-3*0
(Dimethylamino)methyl anion CN(C)[CH2-]189.5165.3± 3.3kJ/mol58.1029 ±
0.0025
125231-49-4*0
2-Iodoethanol ICCO-132.0-150.2± 2.5kJ/mol171.9650 ±
0.0017
624-76-0*0
Cyanogen chloride cation Cl[C+]#N1326.121327.45± 0.97kJ/mol61.4696 ±
0.0012
37612-72-9*0
Propargylenide C#C[CH-]434.5437.7± 1.1kJ/mol38.0485 ±
0.0024
82906-05-6*0
Hydroperoxonium [OH2+]O762.5752.6± 2.0kJ/mol35.02207 ±
0.00064
70850-26-9*2
Cyanogen N#CC#N273.99289.24± 0.43kJ/mol52.0349 ±
0.0016
460-19-5*500
Hydrodioxonitrogen cation [NH+](=O)[O]1129.61123.0± 3.2kJ/mol47.01293 ±
0.00061
252986-76-8*0
Methyl bromide cation C[Br+]996.93982.01± 0.27kJ/mol94.9380 ±
0.0013
12538-70-4*0
Trihydrogen cation [H]1[H+][H]11110.5771106.695± 0.013kJ/mol3.02327 ±
0.00021
28132-48-1*1
Isoformyl anion [C][O].[H-]55.858.4± 1.8kJ/mol29.01859 ±
0.00086
81747-63-9*0
Chloroethane CCCl-134.19-135.81± 0.20kJ/mol64.5138 ±
0.0019
75-00-3*500
Ethenol C=CO-112.76-123.18± 0.84kJ/mol44.0526 ±
0.0017
557-75-5*0
Hydrogen peroxide cation O[OH+]896.57889.59± 0.58kJ/mol34.01413 ±
0.00062
12325-10-9*0
Vinyl alcohol cation C=C[OH+]778.9768.0± 1.4kJ/mol44.0520 ±
0.0017
57239-63-1*0
Methyl iodide cation C[I+]944.69935.29± 0.18kJ/mol141.93844 ±
0.00083
12538-72-6*0
Cyanogen chloride anion ClC#[N-]46.751.1± 3.1kJ/mol61.4707 ±
0.0012
12281-43-5*0
Oxoniumyl ion [H][O+][H]978.714975.563± 0.029kJ/mol18.01473 ±
0.00033
56583-62-1*2
Isocyanogen anion [C-]#[N]C#N383.7387.8± 2.6kJ/mol52.0354 ±
0.0016
*83951-85-3*0
Trihydrogen [H]1[H][H]1254.5250.7± 1.2kJ/mol3.02382 ±
0.00021
12184-91-7*200
Hydrodioxonitrate [NH](=O)[O-]-62.4-68.8± 3.3kJ/mol47.01403 ±
0.00061
61508-71-2*0
Fluoroform C(F)(F)F-704.21± 0.47kJ/mol70.01385 ±
0.00080
75-46-7*590
Imidogen [NH]358.74358.79± 0.17kJ/mol15.014680 ±
0.000099
13774-92-0*1
Difluorodioxidanium FO[O+]F1283.61280.0± 2.3kJ/mol69.99506 ±
0.00060
*7783-44-0*0
Peroxyhypochlorous acid anion OO[Cl-]-32.2-34.0± 2.6kJ/mol68.4600 ±
0.0011
*67952-08-3*0
Imidogen [NH]509.34509.39± 0.18kJ/mol15.014680 ±
0.000099
13774-92-0*2
Carbonic acid OC(=O)O-602.74-612.05± 0.79kJ/mol62.0248 ±
0.0012
463-79-6*0
Diisocyanogen cation [C]#[N+][N+]#[C-]1823.11826.1± 3.5kJ/mol52.0343 ±
0.0016
*78800-21-2*0
Diazenide N#N.[H-]175.7176.7± 1.6kJ/mol29.02197 ±
0.00016
71004-29-0*0
Fluorosyl fluoride FF[O]192.6193.1± 2.3kJ/mol53.99621 ±
0.00030
86825-57-2*0
Ethylene anion C=[CH2-]232.1225.6± 2.0kJ/mol28.0537 ±
0.0016
34527-91-8*0
Perchloric acid cation O[Cl+](=O)(=O)=O1191.81182.2± 3.5kJ/mol100.4577 ±
0.0015
91712-47-9*0
Ethynylene [C]=[C]827.45834.15± 0.27kJ/mol24.0214 ±
0.0016
12070-15-4*1
Hydrogen isocyanide anion [C-]=N191.57191.76± 0.38kJ/mol27.02593 ±
0.00081
96913-22-3*0
Cyanic fluoride cation F[C+]#N1294.51294.9± 1.1kJ/mol45.01529 ±
0.00080
62532-69-8*0
Bromine atom [Br]162.001155.939± 0.056kJ/mol79.90400 ±
0.00100
10097-32-2*2
Isocyanogen chloride cation ClN=[C+]1480.91482.1± 3.9kJ/mol61.4696 ±
0.0012
956475-91-5*0
Isocyanogen bromide cation BrN=[C+]1470.31464.6± 5.9kJ/mol105.9209 ±
0.0013
238754-53-5*0
Hydroxyformyl O[C]=O-181.19-183.77± 0.50kJ/mol45.0174 ±
0.0010
2564-86-5*0
Difluorodioxidane anion FO[O-]F-251.-251.± 28.kJ/mol69.99615 ±
0.00060
*7783-45-1*0
Water O-238.654-241.842± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*1
Hydroxyformyl anion [C-](=O)O-319.50-321.58± 0.60kJ/mol45.0180 ±
0.0010
78944-70-4*0
Peroxychlorous acid O=ClOO102.396.2± 3.7kJ/mol84.4588 ±
0.0013
177778-92-6*3
Chlorine atom [Cl]130.176131.783± 0.0011kJ/mol35.45270 ±
0.00090
22537-15-1*2
Ethylidene [CH]C361.30354.32± 0.91kJ/mol28.0532 ±
0.0016
4218-50-2*0
Bromoform C(Br)(Br)Br3.0± 1.3kJ/mol252.7306 ±
0.0031
75-25-2*590
Water O-286.310-285.838± 0.027kJ/mol18.01528 ±
0.00033
7732-18-5*499
Phenol cation c1ccc(cc1)[OH+]746.32727.53± 0.68kJ/mol94.1107 ±
0.0048
40932-22-7*0
Hydrogen peroxide cation O[OH+]896.60889.59± 0.58kJ/mol34.01413 ±
0.00062
12325-10-9*12
Hydroperoxonium [OH2+]O738.1727.8± 1.2kJ/mol35.02207 ±
0.00064
70850-26-9*0
Oxonium [OH3+]-285.836± 0.027kJ/mol19.02267 ±
0.00037
13968-08-6*800
Hydroxyamidogen [NH]O101.694.8± 1.1kJ/mol32.02202 ±
0.00034
13940-32-4*0
Cyclopropylium C1C[CH+]11104.71093.3± 4.1kJ/mol41.0713 ±
0.0024
1724-43-2*0
Benzaldehyde cation c1ccc(cc1)C=[O+]896.9880.2± 1.9kJ/mol106.1214 ±
0.0056
80226-59-1*0
Benzaldehyde anion c1ccc(cc1)C=[O-]-60.1-77.7± 1.2kJ/mol106.1225 ±
0.0056
34473-57-9*0
Methylene fluoride C(F)F-466.85± 0.39kJ/mol52.02339 ±
0.00081
75-10-5*590
C=O-C cation [C]=[O+][C]1575.81582.9± 2.4kJ/mol40.0203 ±
0.0016
83483-98-1*0
Dioxyamidogen [NH-][O+]=O251.1244.5± 2.5kJ/mol47.01348 ±
0.00061
71843-95-3*1
Hydroxyaminylium [NH+]O1019.61012.5± 2.5kJ/mol32.02147 ±
0.00034
66097-71-0*0
Hypochloroperoxoous acid, hydroxy ester OOOCl49.242.4± 1.9kJ/mol84.4588 ±
0.0013
928652-99-7*0
2-Cyclopropyn-1-ylidene C1=C=C=1899.2906.1± 1.6kJ/mol36.0321 ±
0.0024
102508-15-6*0
Cyclopropane C1CC135.52± 0.59kJ/mol42.0797 ±
0.0024
75-19-4*500
Trihydrogen [H]1[H][H]1477.4474.7± 2.3kJ/mol3.02382 ±
0.00021
12184-91-7*201
Dinitrogen dioxide O=NN=O172.88171.12± 0.14kJ/mol60.01228 ±
0.00062
16824-89-8*0
1,2-Propadien-1-yl-3-ylidene anion [C]=C=[C-]621.9629.3± 1.3kJ/mol36.0326 ±
0.0024
109292-47-9*1
Cyanogen bromide cation Br[C+]#N187.3180.9± 1.1kJ/mol105.9209 ±
0.0013
34749-77-4*0
Iminomethyl [CH]=N275.83272.23± 0.71kJ/mol28.03332 ±
0.00082
15691-95-9*0
Cyanic fluoride anion FC#[N-]-20.4-18.4± 2.9kJ/mol45.01639 ±
0.00080
34507-50-1*0
Trioxygen difluoride FOOOF113.6107.8± 2.1kJ/mol85.99501 ±
0.00090
16829-28-0*2
Nitrosyl nitrite O=NON=O93.088.1± 1.3kJ/mol76.01168 ±
0.00091
122413-35-8*0
Trioxodinitrate anion O=N-[N](=O)[O-]-104.9-108.8± 2.4kJ/mol76.01223 ±
0.00091
194856-62-7*0
Dioxymethylene [CH]O[O]341.1338.9± 3.4kJ/mol45.0174 ±
0.0010
438586-67-5*0
Hydrogen peroxide cation O[OH+]930.5923.6± 1.0kJ/mol34.01413 ±
0.00062
12325-10-9*21
Chlorous acid cation O[Cl+]=O996.6991.6± 3.1kJ/mol68.4589 ±
0.0011
*99559-66-7*0
Chlorine pentafluoride anion F[Cl-](F)(F)(F)F-619.3-622.7± 4.4kJ/mol130.44526 ±
0.00090
184851-42-1*0
Methanediol C(O)O-379.2-392.6± 1.1kJ/mol48.0413 ±
0.0010
463-57-0*0
Oxirene C1=CO1388.7385.4± 2.6kJ/mol42.0367 ±
0.0016
157-18-6*1
Aminomethylidyne anion [C-]N481.6478.0± 3.2kJ/mol28.03387 ±
0.00082
96808-04-7*1
Fluorine atom [F]82.08883.872± 0.048kJ/mol18.99840320 ±
0.00000050
14762-94-8*2
COC vdW [C]=O.[C]589.3598.1± 1.9kJ/mol40.0208 ±
0.0016
*12071-24-8*0
Hydrazine anion N[NH2-]232.1217.8± 4.1kJ/mol32.04579 ±
0.00031
65391-88-0*0
Chlorine trifluoride anion F[Cl-](F)F-480.4-481.9± 3.6kJ/mol92.44846 ±
0.00090
184289-50-7*0
Diazene cation N=[NH+]1132.461125.81± 0.66kJ/mol30.02881 ±
0.00020
76986-17-9*0
Methyl nitrite CON=O-52.46-64.42± 0.90kJ/mol61.0401 ±
0.0010
624-91-9*1
Methyl nitrite CON=O-88.82± 0.56kJ/mol61.0401 ±
0.0010
624-91-9*500
Hydrogen peroxide OO-129.472-135.478± 0.063kJ/mol34.01468 ±
0.00062
7722-84-1*1
2,2,4-Trimethylpentane CC(C)CC(C)(C)C-171.4-223.8± 1.5kJ/mol114.2285 ±
0.0065
540-84-1*0
Carbon atom [C]2.3911.863± 0.044kJ/mol12.01070 ±
0.00080
7440-44-0*501
Dinitrogen anion N#[N-]192.5192.5± 1.7kJ/mol28.01403 ±
0.00014
12185-02-3*0
Nitrous acid anion O[N-]=O-107.0-110.5± 2.4kJ/mol47.01403 ±
0.00061
256393-36-9*0
Methylaminyliumyl C[N+]1388.31382.0± 2.6kJ/mol29.04071 ±
0.00083
56924-51-7*0
Iminomethyl anion [CH-]=N237.4233.6± 1.8kJ/mol28.03387 ±
0.00082
90623-30-6*0
Hydroperoxyimidogen OO[N]111.8108.9± 2.8kJ/mol47.01348 ±
0.00061
877456-58-1*2
Peroxyhypochlorous acid cation OO[Cl+]1030.31024.5± 2.5kJ/mol68.4589 ±
0.0011
*67952-07-2*0
Oxide [O--]651.653.± 15.kJ/mol16.00050 ±
0.00030
16833-27-5*0
Succinic acid OC(=O)CCC(=O)O-795.65-817.79± 0.61kJ/mol118.0880 ±
0.0034
110-15-6*0
Iodine monochloride ICl-36.511-35.537± 0.063kJ/mol162.35717 ±
0.00090
7790-99-0*500
Dicarbon monoxide [C]=C=O377.3381.3± 1.1kJ/mol40.0208 ±
0.0016
12071-23-7*0
Peroxyformic acid C(=O)OO-279.8-288.9± 1.1kJ/mol62.0248 ±
0.0012
107-32-4*0
3-Chloro-3-methyl-3H-diazirine CC1(N=N1)Cl230.218.± 40.kJ/mol90.5114 ±
0.0019
4222-21-3*0
Chlorous acid anion O[Cl-]=O-154.3-156.2± 3.3kJ/mol68.4600 ±
0.0011
99559-66-7*0
Trioxidaniumyl O[O+]O925.7916.8± 1.5kJ/mol50.01353 ±
0.00091
161321-37-5*0
Diazene N=N207.09199.96± 0.44kJ/mol30.02936 ±
0.00020
3618-05-1*0
1,1-Dibromoethane CC(Br)Br-66.4± 1.4kJ/mol187.8612 ±
0.0026
557-91-5*500
Iodosyl ion I[O+]1066.11064.1± 1.9kJ/mol142.90332 ±
0.00030
81182-81-2*0
Propynylidene [CH]=C=[CH]597.6599.4± 1.2kJ/mol38.0480 ±
0.0024
67152-18-5*2
Methoxycarbonyl CO[C]=O-150.1-157.8± 2.1kJ/mol59.0440 ±
0.0017
16481-04-2*0
Diazanide N[NH-]249.4239.3± 3.1kJ/mol31.03785 ±
0.00025
25415-88-7*0
Hydrazoic acid anion N=[N]=[N-]309.0303.1± 2.3kJ/mol43.02871 ±
0.00022
203264-98-6*0
1,2-Dichloroethene C(Cl)=CCl3.46-1.86± 0.56kJ/mol96.9427 ±
0.0024
540-59-0*0
(Formyloxy)methyl O=CO[CH2]-148.7-156.8± 1.7kJ/mol59.0440 ±
0.0017
3122-12-1*0
Methylaminyliumyl C[N+]1423.01416.1± 2.6kJ/mol29.04071 ±
0.00083
56924-51-7*2
2-Hydroxyethyl [CH2]CO-12.84-26.11± 0.63kJ/mol45.0605 ±
0.0017
4422-54-2*0
Krypton dication [Kr++]3701.1243701.124± 0.013kJ/mol83.7989 ±
0.1000
18469-91-5*0
Chloromethylene [CH]Cl320.24320.53± 0.89kJ/mol48.4713 ±
0.0012
2108-20-5*0
Xenon dication [Xe++]3194.143194.14± 0.36kJ/mol131.2889 ±
0.0200
14066-95-6*0
Dichloromethylene [C](Cl)Cl229.49230.67± 0.65kJ/mol82.9161 ±
0.0020
1605-72-7*0
Neon dication [Ne++]6032.9886033.214± 0.0041kJ/mol20.17860 ±
0.00060
14041-55-5*0
Neon trication [Ne+3]12152.40312152.403± 0.033kJ/mol20.17805 ±
0.00060
14158-25-9*0
Neon tetracation [Ne+4]21529.8221531.45± 0.25kJ/mol20.17751 ±
0.00060
14041-56-6*0
Neon pentacation [Ne+5]33711.133711.1± 1.2kJ/mol20.17696 ±
0.00060
14175-48-5*0
Neon hexacation [Ne+6]48949.348949.3± 1.3kJ/mol20.17641 ±
0.00060
14041-57-7*0
Neon heptacation [Ne+7]68948.768948.7± 1.5kJ/mol20.17586 ±
0.00060
14175-50-9*0
Neon octacation [Ne+8]92018.292018.2± 1.5kJ/mol20.17531 ±
0.00060
14782-26-4*0
Neon nonacation [Ne+9]207396.1207396.1± 1.5kJ/mol20.17476 ±
0.00060
15721-59-2*0
Neon cation [Ne+]2080.6622080.769± 0.000kJ/mol20.17915 ±
0.00060
14782-23-1*0
Neon decacation [Ne+10]338828.3338828.3± 1.5kJ/mol20.17421 ±
0.00060
32218-07-8*0
Argon dimer cation [Ar][Ar+]1393.7601391.173± 0.018kJ/mol79.8955 ±
0.0020
17596-58-6*0
Argon cation [Ar+]1520.5711520.580± 0.0011kJ/mol39.94745 ±
0.00100
14791-69-6*0
Argon dimer [Ar][Ar]-1.013-6.347± 0.0051kJ/mol79.8960 ±
0.0020
12595-59-4*0
Helium cation [He+]2372.3222372.322± 0.000kJ/mol4.0020534 ±
0.0000020
14234-48-1*0
Helium dication [He++]7622.8397622.839± 0.000kJ/mol4.0015048 ±
0.0000020
12587-46-1*0
Helium anion [He-]51.51.± 130.kJ/mol4.0031506 ±
0.0000020
14452-58-5*1
Helium anion [He-]51.51.± 130.kJ/mol4.0031506 ±
0.0000020
14452-58-5*0
Argon anion [Ar-]23.23.± 75.kJ/mol39.94855 ±
0.00100
16544-90-4*1
Argon anion [Ar-]23.23.± 75.kJ/mol39.94855 ±
0.00100
16544-90-4*0
Helium anion [He-]1868.431868.43± 0.11kJ/mol4.0031506 ±
0.0000020
14452-58-5*2
Helium anion [He-]1904.8231904.824± 0.0011kJ/mol4.0031506 ±
0.0000020
14452-58-5*3
Helium anion [He-]5724.95724.9± 1.5kJ/mol4.0031506 ±
0.0000020
14452-58-5*4
Argon anion [Ar-]1111.1161111.116± 0.098kJ/mol39.94855 ±
0.00100
16544-90-4*2
Hydron [H+]00exact1.007391 ±
0.000070
12408-02-5*800


References (for your convenience, also available in RIS and BibTex format)
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. 1.122d of the Thermochemical Network, Argonne National Laboratory (2018); available at ATcT.anl.gov
4   B. Ruscic,
Active Thermochemical Tables: Sequential Bond Dissociation Enthalpies of Methane, Ethane, and Methanol and the Related Thermochemistry.
J. Phys. Chem. A 119, 7810-7837 (2015) [DOI: 10.1021/acs.jpca.5b01346]
5   T. L. Nguyen, J. H. Baraban, B. Ruscic, and J. F. Stanton,
On the HCN – HNC Energy Difference.
J. Phys. Chem. A 119, 10929-10934 (2015) [DOI: 10.1021/acs.jpca.5b08406]
6   L. Cheng, J. Gauss, B. Ruscic, P. Armentrout, and J. Stanton,
Bond Dissociation Energies for Diatomic Molecules Containing 3d Transition Metals: Benchmark Scalar-Relativistic Coupled-Cluster Calculations for Twenty Molecules.
J. Chem. Theory Comput. 13, 1044-1056 (2017) [DOI: 10.1021/acs.jctc.6b00970]
7   B. Ruscic,
Uncertainty Quantification in Thermochemistry, Benchmarking Electronic Structure Computations, and Active Thermochemical Tables.
Int. J. Quantum Chem. 114, 1097-1101 (2014) [DOI: 10.1002/qua.24605]

Formula
The aggregate state is given in parentheses following the formula, such as: g - gas-phase, cr - crystal, l - liquid, etc.

Uncertainties
The listed uncertainties correspond to estimated 95% confidence limits, as customary in thermochemistry (see, for example, Ruscic [7]).
Note that an uncertainty of ± 0.000 kJ/mol indicates that the estimated uncertainty is < ± 0.0005 kJ/mol.

Website Functionality Credits
The reorganization of the website was developed and implemented by David H. Bross (ANL).
The find function is based on the complete Species Dictionary entries for the appropriate version of the ATcT TN.
The molecule images are rendered by Indigo-depict.
The XYZ renderings are based on Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/.

Acknowledgement
This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences under Contract No. DE-AC02-06CH11357.