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

Below is a list of 0 K and 298.15 K enthalpies of formation for all 1617 species included in version 1.122g (as of 09/20/2019).
This version of ATcT results was generated from an expansion of version 1.122e [4] to include results centered on the determination of the appearance energy of CH₃⁺ from CH₄. [5].

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

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

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

Species:

(chemical formulas are case sensitive)

Exact Matches only:

Website functionality credits

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

Species Name	Image	Δ_fH°(0 K)	Δ_fH°(298.15 K)	Uncertainty	Units	Relative Molecular Mass	ATcT ID
Dihydrogen		0	0	exact		2.01588 ± 0.00014	1333-74-0*0
Helium		0	0	exact		4.0026020 ± 0.0000020	7440-59-7*0
Carbon atom		0	0	exact		12.01070 ± 0.00080	7440-44-0*500
Dinitrogen		0	0	exact		28.01348 ± 0.00014	7727-37-9*0
Dioxygen		0	0	exact		31.99880 ± 0.00060	7782-44-7*0
Difluorine		0	0	exact		37.9968064 ± 0.0000010	7782-41-4*0
Neon		0	0	exact		20.17970 ± 0.00060	7440-01-9*0
Dichlorine		0	0	exact		70.9054 ± 0.0018	7782-50-5*0
Argon		0	0	exact		39.94800 ± 0.00100	7440-37-1*0
Dibromine		0	0	exact		159.8080 ± 0.0020	7726-95-6*500
Krypton		0	0	exact		83.8000 ± 0.1000	7439-90-9*0
Diiodine		0	0	exact		253.808940 ± 0.000060	7553-56-2*500
Xenon		0	0	exact		131.2900 ± 0.0200	7440-63-3*0
Deuterium molecule		0	0	exact		4.02820355600 ± 0.00000000080	7782-39-0*0
Hydrogen atom		216.034	217.998	± 0.000	kJ/mol	1.007940 ± 0.000070	12385-13-6*0
Carbon atom		711.399	716.884	± 0.047	kJ/mol	12.01070 ± 0.00080	7440-44-0*0
Oxygen atom		246.844	249.229	± 0.0021	kJ/mol	15.99940 ± 0.00030	17778-80-2*0
Nitrogen atom		470.579	472.442	± 0.024	kJ/mol	14.006740 ± 0.000070	17778-88-0*0
Carbon dioxide		-393.108	-393.474	± 0.015	kJ/mol	44.00950 ± 0.00100	124-38-9*0
Chlorine atom		119.621	121.302	± 0.0011	kJ/mol	35.45270 ± 0.00090	22537-15-1*0
Fluorine atom		77.255	79.361	± 0.048	kJ/mol	18.99840320 ± 0.00000050	14762-94-8*0
Methane		-66.557	-74.526	± 0.055	kJ/mol	16.04246 ± 0.00085	74-82-8*0
Ethane		-68.35	-83.97	± 0.13	kJ/mol	30.0690 ± 0.0017	74-84-0*0
Water		-286.302	-285.830	± 0.027	kJ/mol	18.01528 ± 0.00033	7732-18-5*500
Water		-238.932	-241.836	± 0.027	kJ/mol	18.01528 ± 0.00033	7732-18-5*0
Hydron		1528.084	1530.047	± 0.000	kJ/mol	1.007391 ± 0.000070	12408-02-5*0
Ethylene		60.88	52.36	± 0.12	kJ/mol	28.0532 ± 0.0016	74-85-1*0
Bromine atom		117.914	111.851	± 0.056	kJ/mol	79.90400 ± 0.00100	10097-32-2*0
Methanol		-190.01	-200.89	± 0.15	kJ/mol	32.04186 ± 0.00090	67-56-1*0
Hydrogen chloride		-91.989	-92.173	± 0.0062	kJ/mol	36.46064 ± 0.00090	7647-01-0*0
Hydroxyl		37.248	37.488	± 0.027	kJ/mol	17.00734 ± 0.00031	3352-57-6*0
Carbon monoxide		-113.803	-110.523	± 0.026	kJ/mol	28.01010 ± 0.00085	630-08-0*0
Methyl		149.872	146.458	± 0.060	kJ/mol	15.03452 ± 0.00083	2229-07-4*0
Propane		-82.75	-105.03	± 0.18	kJ/mol	44.0956 ± 0.0025	74-98-6*0
Formaldehyde		-105.379	-109.218	± 0.098	kJ/mol	30.02598 ± 0.00087	50-00-0*0
Hydrogen fluoride		-272.677	-272.724	± 0.049	kJ/mol	20.006343 ± 0.000070	7664-39-3*0
Hydrogen bromide		-27.97	-35.82	± 0.14	kJ/mol	80.9119 ± 0.0010	10035-10-6*0
Ethanol		-217.30	-235.02	± 0.22	kJ/mol	46.0684 ± 0.0017	64-17-5*0
Iodine atom		107.157	106.757	± 0.0021	kJ/mol	126.904470 ± 0.000030	14362-44-8*0
Ethyl		131.06	119.99	± 0.27	kJ/mol	29.0611 ± 0.0016	2025-56-1*0
Acetylene		228.82	228.26	± 0.13	kJ/mol	26.0373 ± 0.0016	74-86-2*0
Nitric oxide		90.619	91.123	± 0.065	kJ/mol	30.00614 ± 0.00031	10102-43-9*0
Chloromethane		-74.61	-82.54	± 0.19	kJ/mol	50.4872 ± 0.0012	74-87-3*0
Hydrogen cyanide		129.661	129.276	± 0.090	kJ/mol	27.02538 ± 0.00081	74-90-8*0
Ammonia		-38.565	-45.557	± 0.030	kJ/mol	17.03056 ± 0.00022	7664-41-7*0
Propene		34.93	19.93	± 0.21	kJ/mol	42.0797 ± 0.0024	115-07-1*0
Nitrogen dioxide		36.859	34.052	± 0.065	kJ/mol	46.00554 ± 0.00060	10102-44-0*0
Hydroxyde		-139.093	-139.060	± 0.027	kJ/mol	17.00789 ± 0.00031	14280-30-9*0
Dioxidanyl		15.12	12.22	± 0.15	kJ/mol	33.00674 ± 0.00060	3170-83-0*0
Hydrogen iodide		28.645	26.470	± 0.036	kJ/mol	127.912410 ± 0.000076	10034-85-2*0
Fluoromethane		-227.45	-235.48	± 0.24	kJ/mol	34.03292 ± 0.00083	593-53-3*0
Acetaldehyde		-155.16	-165.64	± 0.26	kJ/mol	44.0526 ± 0.0017	75-07-0*0
Hydrogen peroxide		-129.480	-135.466	± 0.063	kJ/mol	34.01468 ± 0.00062	7722-84-1*0
Bromomethane		-20.88	-36.28	± 0.18	kJ/mol	94.9385 ± 0.0013	74-83-9*0
n-Butane		-98.47	-125.78	± 0.26	kJ/mol	58.1222 ± 0.0033	106-97-8*0
Benzene		100.62	83.10	± 0.23	kJ/mol	78.1118 ± 0.0048	71-43-2*0
Methylene		428.73	429.14	± 0.11	kJ/mol	14.02658 ± 0.00081	2465-56-7*2
Hypochlorous acid		-73.869	-76.809	± 0.027	kJ/mol	52.46004 ± 0.00095	7790-92-3*0
Propyne		192.79	185.73	± 0.24	kJ/mol	40.0639 ± 0.0024	74-99-7*0
Formic acid		-371.10	-378.42	± 0.22	kJ/mol	46.0254 ± 0.0010	64-18-6*1
Dibromine		45.67	30.88	± 0.11	kJ/mol	159.8080 ± 0.0020	7726-95-6*0
Methylene		391.068	391.625	± 0.098	kJ/mol	14.02658 ± 0.00081	2465-56-7*1
Fluoride		-250.910	-249.125	± 0.048	kJ/mol	18.99895178 ± 0.00000050	16984-48-8*0
Ketene		-45.34	-48.46	± 0.12	kJ/mol	42.0367 ± 0.0016	463-51-4*0
Tetrachloromethane		-93.48	-95.65	± 0.44	kJ/mol	153.8215 ± 0.0037	56-23-5*0
Chloroethane		-96.89	-111.48	± 0.26	kJ/mol	64.5138 ± 0.0019	75-00-3*0
Tetrafluoromethane		-927.45	-933.42	± 0.25	kJ/mol	88.00431 ± 0.00080	75-73-0*0
Methylidyne		592.825	596.159	± 0.099	kJ/mol	13.01864 ± 0.00080	3315-37-5*0
Diiodine		65.497	62.417	± 0.0041	kJ/mol	253.808940 ± 0.000060	7553-56-2*0
Toluene		73.29	50.01	± 0.34	kJ/mol	92.1384 ± 0.0056	108-88-3*0
Fluoroform		-688.92	-695.87	± 0.43	kJ/mol	70.01385 ± 0.00080	75-46-7*0
Ozone		144.397	141.734	± 0.039	kJ/mol	47.99820 ± 0.00090	10028-15-6*0
Trifluoromethyl		-465.08	-467.88	± 0.49	kJ/mol	69.00591 ± 0.00080	2264-21-3*0
Ethylium		914.84	902.76	± 0.31	kJ/mol	29.0606 ± 0.0016	14936-94-8*0
Acetone		-200.21	-216.90	± 0.38	kJ/mol	58.0791 ± 0.0025	67-64-1*0
Phenol		-74.66	-93.26	± 0.64	kJ/mol	94.1112 ± 0.0048	108-95-2*0
Oxonium		605.83	599.08	± 0.17	kJ/mol	19.02267 ± 0.00037	13968-08-6*0
Chloride		-228.953	-227.346	± 0.0021	kJ/mol	35.45325 ± 0.00090	16887-00-6*0
Bromide		-206.623	-212.686	± 0.056	kJ/mol	79.90455 ± 0.00100	24959-67-9*0
Hypobromous acid		-51.63	-62.11	± 0.47	kJ/mol	96.9113 ± 0.0010	13517-11-8*0
Vinyl		301.13	296.93	± 0.34	kJ/mol	27.0452 ± 0.0016	2669-89-8*0
Methoxy		28.85	21.48	± 0.29	kJ/mol	31.03392 ± 0.00088	2143-68-2*0
Acetic acid		-418.88	-433.00	± 0.43	kJ/mol	60.0520 ± 0.0017	64-19-7*1
Chlorooxidanyl		101.125	101.716	± 0.035	kJ/mol	51.45210 ± 0.00095	14989-30-1*0
Methylamine		-7.02	-21.73	± 0.31	kJ/mol	31.05714 ± 0.00088	74-89-5*0
Methoxide		-122.63	-130.35	± 0.30	kJ/mol	31.03447 ± 0.00088	3315-60-4*0
Hydroxymethyl		-10.46	-16.77	± 0.28	kJ/mol	31.03392 ± 0.00088	2597-43-5*0
Oxomethylium		827.772	827.188	± 0.098	kJ/mol	29.01749 ± 0.00086	17030-74-9*0
Allene		197.34	189.86	± 0.25	kJ/mol	40.0639 ± 0.0024	463-49-0*0
1,3-Butadiene		125.31	110.83	± 0.37	kJ/mol	54.0904 ± 0.0032	106-99-0*0
Imidogen		358.75	358.79	± 0.17	kJ/mol	15.014680 ± 0.000099	13774-92-0*0
Nitrilomethyl		436.73	440.01	± 0.15	kJ/mol	26.01744 ± 0.00080	2074-87-5*0
Dioxymethyl	$[O-]\[O+]=C$	111.88	104.87	± 0.63	kJ/mol	46.0254 ± 0.0010	56077-92-0*0
Difluorophosgene		-603.38	-606.48	± 0.41	kJ/mol	66.00691 ± 0.00085	353-50-4*0
Phenyl		350.24	336.88	± 0.54	kJ/mol	77.1039 ± 0.0048	2396-01-2*0
Nitric acid		-124.50	-134.21	± 0.18	kJ/mol	63.01288 ± 0.00091	7697-37-2*0
Formyl		41.396	41.773	± 0.098	kJ/mol	29.01804 ± 0.00086	2597-44-6*0
Allyl		180.03	168.31	± 0.45	kJ/mol	41.0718 ± 0.0024	1981-80-2*0
Iodide		-187.995	-188.396	± 0.0021	kJ/mol	126.905019 ± 0.000030	20461-54-5*0
Cyanogen chloride		134.94	135.64	± 0.46	kJ/mol	61.4701 ± 0.0012	506-77-4*0
iso-Butane		-106.04	-134.64	± 0.31	kJ/mol	58.1222 ± 0.0033	75-28-5*0
Methylium		1099.340	1095.396	± 0.057	kJ/mol	15.03397 ± 0.00083	14531-53-4*0
Hypofluorous acid		-84.39	-87.29	± 0.19	kJ/mol	36.00574 ± 0.00031	14034-79-8*0
Hydrogen chloride			-166.452	± 0.024	kJ/mol	36.46064 ± 0.00090	7647-01-0*834
Propargyl		353.97	351.38	± 0.37	kJ/mol	39.0559 ± 0.0024	2932-78-7*0
Dichloromethane		-87.13	-93.99	± 0.50	kJ/mol	84.9320 ± 0.0020	75-09-2*0
Vinyl chloride		29.26	21.67	± 0.30	kJ/mol	62.4979 ± 0.0018	75-01-4*0
Cyanogen bromide		186.7	180.2	± 1.1	kJ/mol	105.9214 ± 0.0013	506-68-3*0
Iodomethane		24.50	14.97	± 0.18	kJ/mol	141.93899 ± 0.00083	74-88-4*0
Trihydrogen cation		1110.304	1106.696	± 0.013	kJ/mol	3.02327 ± 0.00021	28132-48-1*0
Oxygen atom anion		105.868	108.097	± 0.0021	kJ/mol	15.99995 ± 0.00030	14337-01-0*0
Ethoxide		-163.65	-178.59	± 0.49	kJ/mol	45.0610 ± 0.0017	16331-64-9*0
Amidogen		188.92	186.03	± 0.11	kJ/mol	16.02262 ± 0.00016	13770-40-6*0
n-Propyl		118.34	100.94	± 0.55	kJ/mol	43.0877 ± 0.0024	2143-61-5*0
iso-Propyl		105.32	88.45	± 0.53	kJ/mol	43.0877 ± 0.0024	2025-55-0*0
2-Hydroxyethyl		-13.06	-26.32	± 0.61	kJ/mol	45.0605 ± 0.0017	4422-54-2*1
Tetrabromomethane		132.9	103.2	± 1.3	kJ/mol	331.6267 ± 0.0041	558-13-4*0
Difluoromethane		-443.02	-450.63	± 0.35	kJ/mol	52.02339 ± 0.00081	75-10-5*0
Oxygen difluoride		26.81	24.56	± 0.24	kJ/mol	53.99621 ± 0.00030	7783-41-7*0
Hypochlorite		-118.60	-118.33	± 0.13	kJ/mol	51.45265 ± 0.00095	14380-61-1*0
Methyl hydroperoxide		-115.11	-127.93	± 0.72	kJ/mol	48.0413 ± 0.0010	3031-73-0*0
Methylperoxy		22.23	12.59	± 0.48	kJ/mol	47.0333 ± 0.0010	2143-58-0*0
Propynylidene		543.41	546.40	± 0.64	kJ/mol	38.0480 ± 0.0024	67152-18-5*1
Ethenol		-112.73	-123.93	± 0.66	kJ/mol	44.0526 ± 0.0017	557-75-5*1
Chloroform		-97.50	-102.41	± 0.52	kJ/mol	119.3767 ± 0.0028	67-66-3*0
Oxygen atom cation		1560.786	1562.644	± 0.0021	kJ/mol	15.99885 ± 0.00030	14581-93-2*0
1,2-Propadiene-1,3-diylidene		814.67	823.62	± 0.55	kJ/mol	36.0321 ± 0.0024	12075-35-3*0
Acetonitrile		81.11	74.06	± 0.26	kJ/mol	41.0520 ± 0.0016	75-05-8*0
Cyanic fluoride		8.79	9.12	± 0.71	kJ/mol	45.01584 ± 0.00080	1495-50-7*0
1-Hydroxyethyl		-42.28	-55.71	± 0.65	kJ/mol	45.0605 ± 0.0017	2348-46-1*1
Hydroxyformyl		-181.20	-184.17	± 0.50	kJ/mol	45.0174 ± 0.0010	2564-86-5*1
Formate		-463.16	-466.80	± 0.56	kJ/mol	45.0180 ± 0.0010	71-47-6*0
Methyl formate		-346.78	-359.83	± 0.87	kJ/mol	60.0520 ± 0.0017	107-31-3*1
Tetrafluoroethylene		-671.20	-674.60	± 0.55	kJ/mol	100.0150 ± 0.0016	116-14-3*0
Fluoromethylidyne		243.15	246.75	± 0.13	kJ/mol	31.00910 ± 0.00080	3889-75-6*0
Ethyl bromide		-41.40	-63.35	± 0.25	kJ/mol	108.9651 ± 0.0019	74-96-4*0
Vinyl bromide		88.56	73.76	± 0.58	kJ/mol	106.9492 ± 0.0019	593-60-2*0
Chlorine fluoride		-55.620	-55.715	± 0.055	kJ/mol	54.45110 ± 0.00090	7790-89-8*0
Diazynium		1042.54	1038.93	± 0.68	kJ/mol	29.02087 ± 0.00016	12357-66-3*0
Methanimine		96.25	88.34	± 0.62	kJ/mol	29.04126 ± 0.00083	2053-29-4*0
Nitrite		-182.63	-185.44	± 0.46	kJ/mol	46.00609 ± 0.00060	14797-65-0*0
Hydroxylamine		-33.23	-43.61	± 0.46	kJ/mol	33.02996 ± 0.00037	7803-49-8*1
Nitrosyl hydride		109.93	106.96	± 0.11	kJ/mol	31.01408 ± 0.00032	14332-28-6*0
Nitrous acid		-73.005	-79.149	± 0.079	kJ/mol	47.01348 ± 0.00061	7782-77-6*1
Ethynylene		820.28	828.75	± 0.26	kJ/mol	24.0214 ± 0.0016	12070-15-4*0
Hydride		143.264	145.228	± 0.000	kJ/mol	1.008489 ± 0.000070	12184-88-2*0
n-Butyl		102.74	80.23	± 0.70	kJ/mol	57.1143 ± 0.0033	2492-36-6*0
Cyclopentadiene		150.83	133.71	± 0.66	kJ/mol	66.1011 ± 0.0040	542-92-7*0
Methoxymethane		-166.38	-183.89	± 0.41	kJ/mol	46.0684 ± 0.0017	115-10-6*0
Isocyanic acid		-115.85	-118.84	± 0.31	kJ/mol	43.02478 ± 0.00086	75-13-8*0
Methyl acetate		-394.28	-413.15	± 0.61	kJ/mol	74.0785 ± 0.0025	79-20-9*1
Phosgene		-217.45	-219.14	± 0.27	kJ/mol	98.9155 ± 0.0020	75-44-5*0
Phenylium		1148.46	1135.68	± 0.87	kJ/mol	77.1034 ± 0.0048	17333-73-2*0
Fluorooxidanyl		110.27	110.89	± 0.15	kJ/mol	34.99780 ± 0.00030	12061-70-0*0
Hypoiodous acid		-54.2	-58.9	± 3.1	kJ/mol	143.91181 ± 0.00031	14332-21-9*0
Methanium		921.95	911.70	± 0.45	kJ/mol	17.04985 ± 0.00087	15135-49-6*0
Oxirane		-40.06	-52.60	± 0.38	kJ/mol	44.0526 ± 0.0017	75-21-8*0
Ethynide		277.41	280.82	± 0.18	kJ/mol	25.0299 ± 0.0016	29075-95-4*0
cis-2-Butene	$C/C=C\C$	14.19	-7.08	± 0.41	kJ/mol	56.1063 ± 0.0032	590-18-1*0
Formic acid		-354.76	-361.86	± 0.38	kJ/mol	46.0254 ± 0.0010	64-18-6*2
Methanetetraylbisamidogen		450.42	450.83	± 0.64	kJ/mol	40.02418 ± 0.00081	2669-76-3*0
Fluoroethane		-257.23	-272.09	± 0.36	kJ/mol	48.0595 ± 0.0016	353-36-6*0
Chlorotrifluoromethane		-704.86	-709.97	± 0.71	kJ/mol	104.4586 ± 0.0012	75-72-9*0
Bromotrifluoromethane		-639.16	-651.28	± 0.47	kJ/mol	148.9099 ± 0.0013	75-63-8*0
Fluorobenzene		-99.08	-114.76	± 0.89	kJ/mol	96.1023 ± 0.0048	462-06-6*0
Nitromethane		-60.84	-74.74	± 0.46	kJ/mol	61.0401 ± 0.0010	75-52-5*0
Chlorine dioxide		101.33	98.86	± 0.27	kJ/mol	67.4515 ± 0.0011	10049-04-4*0
Dioxygen cation		1164.585	1165.221	± 0.0092	kJ/mol	31.99825 ± 0.00060	12185-07-8*0
Methylidyne		664.55	667.89	± 0.59	kJ/mol	13.01864 ± 0.00080	3315-37-5*2
Ethanide		155.31	144.23	± 0.89	kJ/mol	29.0616 ± 0.0016	25013-41-6*0
Ethynyl		563.86	567.98	± 0.14	kJ/mol	25.0293 ± 0.0016	2122-48-7*0
Aminomethyl		158.91	149.07	± 0.44	kJ/mol	30.04920 ± 0.00085	10507-29-6*0
Peroxyformic acid		-279.35	-288.69	± 0.90	kJ/mol	62.0248 ± 0.0012	107-32-4*1
Cyclopropane		70.98	53.85	± 0.41	kJ/mol	42.0797 ± 0.0024	75-19-4*0
Propadienylidene		554.41	555.55	± 0.41	kJ/mol	38.0480 ± 0.0024	60731-10-4*0
Ethoxy		1.48	-12.42	± 0.48	kJ/mol	45.0605 ± 0.0017	2154-50-9*51
Acetyl		-3.34	-10.00	± 0.35	kJ/mol	43.0446 ± 0.0016	3170-69-2*0
Cyanooxidanyl		127.02	127.49	± 0.35	kJ/mol	42.01684 ± 0.00086	22400-26-6*0
Phenolate		-146.35	-161.82	± 0.88	kJ/mol	93.1038 ± 0.0048	3229-70-7*0
Dimethylamine		3.54	-18.10	± 0.48	kJ/mol	45.0837 ± 0.0017	124-40-3*0
Bromoform		74.7	48.5	± 1.3	kJ/mol	252.7306 ± 0.0031	75-25-2*0
Cyclopentadienyl		274.42	261.31	± 0.93	kJ/mol	65.0932 ± 0.0040	2143-53-5*0
Bromooxidanyl		131.14	123.60	± 0.28	kJ/mol	95.9034 ± 0.0010	15656-19-6*0
Fluorodioxidanyl		26.80	25.09	± 0.26	kJ/mol	50.99720 ± 0.00060	15499-23-7*0
Hypobromite		-96.15	-103.63	± 0.53	kJ/mol	95.9039 ± 0.0010	14380-62-2*0
Peroxynitrous acid		-5.81	-14.25	± 0.36	kJ/mol	63.01288 ± 0.00091	14691-52-2*3
Cyanide		63.956	67.242	± 0.094	kJ/mol	26.01799 ± 0.00080	57-12-5*0
Isobutene		4.01	-17.05	± 0.42	kJ/mol	56.1063 ± 0.0032	115-11-7*0
1-Butene		21.00	0.05	± 0.38	kJ/mol	56.1063 ± 0.0032	106-98-9*0
n-Pentane		-114.41	-146.28	± 0.31	kJ/mol	72.1488 ± 0.0041	109-66-0*0
Dichloromethylene		229.49	230.67	± 0.64	kJ/mol	82.9161 ± 0.0020	1605-72-7*2
Hydrogen fluoride			-334.49	± 0.16	kJ/mol	20.006343 ± 0.000070	7664-39-3*800
Vinyl fluoride		-134.54	-142.35	± 0.46	kJ/mol	46.0436 ± 0.0016	75-02-5*0
Chlorobenzene		67.14	52.18	± 0.61	kJ/mol	112.5566 ± 0.0049	108-90-7*0
Difluorodioxidane		35.27	31.54	± 0.41	kJ/mol	69.99561 ± 0.00060	7783-44-0*0
Water			-285.830	± 0.027	kJ/mol	18.01528 ± 0.00033	7732-18-5*590
Nitrous oxide		85.997	82.567	± 0.097	kJ/mol	44.01288 ± 0.00033	10024-97-2*0
(E)-Diazene		207.10	199.95	± 0.44	kJ/mol	30.02936 ± 0.00020	15626-43-4*0
Hydroxyoxomethylium		600.65	597.57	± 0.44	kJ/mol	45.0169 ± 0.0010	638-71-1*0
Ethylidene		361.35	354.35	± 0.76	kJ/mol	28.0532 ± 0.0016	4218-50-2*1
Vinylium		1118.94	1115.50	± 0.57	kJ/mol	27.0447 ± 0.0016	14604-48-9*0
Hydroxymethylium		717.70	709.76	± 0.18	kJ/mol	31.03337 ± 0.00088	18682-95-6*0
Cyanogen		308.31	310.25	± 0.43	kJ/mol	52.0349 ± 0.0016	460-19-5*0
Peroxyformyl		-100.46	-105.76	± 0.93	kJ/mol	61.0168 ± 0.0012	56240-83-6*1
Dioxidanide		-88.87