Selected ATcT [1, 2] enthalpy of formation based on version 1.148 of the Thermochemical Network [3]

This version of ATcT results[3] was generated by additional expansion of version 1.140 to include species relevant to a recent study of the role of atmospheric methanediol[4].

Sulfanyl

Formula: SH (g)

CAS RN: 13940-21-1

ATcT ID: 13940-21-1*0

SMILES: [SH]

InChI: InChI=1S/HS/h1H

InChIKey: PXQLVRUNWNTZOS-UHFFFAOYSA-N

Hills Formula: H1S1

2D Image:

Aliases: SH; Sulfanyl; Mercapto; Mercapto radical; Thiohydroxyl; Sulfhydryl; Sulfide radical; Hydrogen monosulfide; Monohydrogen sulfide; Monohydrogen monosulfide; Hydrogen sulfide; Sulfur monohydride; Sulfur hydride; Hydrosulfur

Relative Molecular Mass: 33.0739 ± 0.0060

Δ_fH°(0 K)	Δ_fH°(298.15 K)	Uncertainty	Units
142.81	143.26	± 0.18	kJ/mol

3D Image of SH (g)

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Top contributors to the provenance of Δ_fH° of SH (g)

The 20 contributors listed below account only for 86.4% of the provenance of Δ_fH° of SH (g).
A total of 24 contributors would be needed to account for 90% of the provenance.

Please note: The list is limited to 20 most important contributors or, if less, a number sufficient to account for 90% of the provenance. The Reference acts as a further link to the relevant references and notes for the measurement. The Measured Quantity is normaly given in the original units; in cases where we have reinterpreted the original measurement, the listed value may differ from that given by the authors. The quoted uncertainty is the a priori uncertainty used as input when constructing the initial Thermochemical Network, and corresponds either to the value proposed by the original authors or to our estimate; if an additional multiplier is given in parentheses immediately after the prior uncertainty, it corresponds to the factor by which the prior uncertainty needed to be multiplied during the ATcT analysis in order to make that particular measurement consistent with the prevailing knowledge contained in the Thermochemical Network.

Contribution (%)	TN ID	Reaction	Measured Quantity	Reference
22.8	9124.1	999 H2S (g) + 999 O2 (g) → 728 OSO (g) + 272 S (cr,l) + 999 H2O (cr,l)	Δ_rH°(298.15 K) = -115042 ± 60 kcal/mol	Kapustinskii 1958
14.0	9023.1	S (cr,l) + O2 (g) → OSO (g)	Δ_rH°(298.15 K) = -296.847 ± 0.200 kJ/mol	Eckman 1929, note SO2
9.9	9130.1	SH (g) → H (g) + S (g)	Δ_rH°(0 K) = 29245 ± 25 cm-1	Zhou 2005
7.5	9152.1	S (cr,l) + 3/2 O2 (g) + H2O (cr,l) → OS(O)(OH)2 (aq, 115 H2O)	Δ_rH°(298.15 K) = -143.85 ± 0.06 kcal/mol	Good 1960, CODATA Key Vals
5.5	9152.2	S (cr,l) + 3/2 O2 (g) + H2O (cr,l) → OS(O)(OH)2 (aq, 115 H2O)	Δ_rH°(298.15 K) = -143.92 ± 0.07 kcal/mol	Mansson 1963, CODATA Key Vals
3.0	9016.10	S2 (g) + 2 H2O (g) → O2 (g) + 2 H2S (g)	Δ_rH°(0 K) = 75.40 ± 0.25 kcal/mol	Karton 2006, Karton 2011
3.0	9016.11	S2 (g) + 2 H2O (g) → O2 (g) + 2 H2S (g)	Δ_rH°(0 K) = 75.51 ± 0.25 kcal/mol	Feller 2008
2.2	9008.2	2 S (cr,l) → S2 (g)	Δ_rG°(570 K) = 9.483 ± 0.138 (×1.915) kcal/mol	Drowart 1968, Detry 1967, 3rd Law
2.2	9191.1	S (cr,l) + 3/2 O2 (g) + H2O (cr,l) → OS(O)(OH)2 (aq, 45 H2O)	Δ_rH°(298.15 K) = -143.67 ± 0.11 kcal/mol	McCullough 1957a
2.2	9126.1	H2S (g) + 3/2 O2 (g) → OSO (g) + H2O (cr,l)	Δ_rH°(298.15 K) = -134.24 ± 0.16 kcal/mol	Kapustinskii 1958
2.0	9042.1	SO (g) → S (g) + O (g)	Δ_rH°(0 K) = 43275 ± 5 cm-1	Clerbaux 1994
1.8	9010.4	S2 (g) + 2 H2 (g) → 2 H2S (g)	Δ_rG°(1515 K) = -31.42 ± 0.80 (×1.719) kJ/mol	Randall 1918, Gurvich TPIS, 2nd Law
1.7	9008.4	2 S (cr,l) → S2 (g)	Δ_rG°(600 K) = 8.57 ± 0.29 (×1.044) kcal/mol	Braune 1951, West 1929, Gurvich TPIS, 3rd Law
1.5	9151.1	S (cr,l) + 3/2 O2 (g) + H2O (cr,l) → OS(O)(OH)2 (aq, 70 H2O)	Δ_rH°(298.15 K) = -143.58 ± 0.09 (×1.477) kcal/mol	McCullough 1953, CODATA Key Vals
1.2	9131.12	SH (g) → H (g) + S (g)	Δ_rH°(0 K) = 83.69 ± 0.20 kcal/mol	Feller 2008
1.2	9107.13	H2S (g) → 2 H (g) + S (g)	Δ_rH°(0 K) = 173.54 ± 0.20 kcal/mol	Feller 2008, McNeill 2022
1.1	9016.9	S2 (g) + 2 H2O (g) → O2 (g) + 2 H2S (g)	Δ_rH°(0 K) = 75.57 ± 0.40 kcal/mol	Karton 2011
1.0	9152.3	S (cr,l) + 3/2 O2 (g) + H2O (cr,l) → OS(O)(OH)2 (aq, 115 H2O)	Δ_rH°(298.15 K) = -143.70 ± 0.07 (×2.278) kcal/mol	Waddington 1956, Mansson 1963, est unc
1.0	9150.1	OSO (g) + 1/2 O2 (g) + H2O (cr,l) → OS(O)(OH)2 (cr,l)	Δ_rH°(298.15 K) = -231.329 ± 0.040 kJ/mol	NBS Tables 1989
0.9	9125.1	H2S (g) + 1/2 O2 (g) → S (cr,l) + H2O (cr,l)	Δ_rH°(298.15 K) = -63.66 ± 0.42 kcal/mol	Kapustinskii 1958

Top 10 species with enthalpies of formation correlated to the Δ_fH° of SH (g)

Please note: The correlation coefficients are obtained by renormalizing the off-diagonal elements of the covariance matrix by the corresponding variances.
The correlation coefficient is a number from -1 to 1, with 1 representing perfectly correlated species, -1 representing perfectly anti-correlated species, and 0 representing perfectly uncorrelated species.

Correlation Coefficent (%)	Species Name	Formula	Δ_fH°(0 K)	Δ_fH°(298.15 K)	Uncertainty	Units	Relative Molecular Mass	ATcT ID
100.0	Hydrosulfide	[SH]- (g)	-80.53	-80.53	± 0.18	kJ/mol	33.0745 ± 0.0060	15035-72-0*0
99.3	Hydrogen sulfide	H2S (g)	-17.37	-20.29	± 0.18	kJ/mol	34.0819 ± 0.0060	7783-06-4*0
98.9	Sulfoniumyl	[H2S]+ (g)	992.66	989.75	± 0.18	kJ/mol	34.0813 ± 0.0060	26453-60-1*0
98.0	Sulfanylium	[SH]+ (g)	1148.36	1148.36	± 0.19	kJ/mol	33.0734 ± 0.0060	12273-42-6*0
63.9	Monosulfur anion	S- (g)	76.42	78.48	± 0.14	kJ/mol	32.0665 ± 0.0060	14337-03-2*0
63.9	Sulfur	S (g)	276.83	279.08	± 0.14	kJ/mol	32.0660 ± 0.0060	7704-34-9*0
63.7	Monosulfur cation	S+ (g)	1276.42	1278.21	± 0.14	kJ/mol	32.0655 ± 0.0060	14701-12-3*0
63.7	Disulfur	S2 (g)	127.37	127.68	± 0.27	kJ/mol	64.1320 ± 0.0120	23550-45-0*0
62.7	Sulfur atom dication	[S]+2 (g)	3528.18	3531.88	± 0.14	kJ/mol	32.0649 ± 0.0060	14127-58-3*0
61.5	Sulfur monoxide	SO (g)	5.95	6.00	± 0.13	kJ/mol	48.0654 ± 0.0060	13827-32-2*0

Most Influential reactions involving SH (g)

Please note: The list, which is based on a hat (projection) matrix analysis, is limited to no more than 20 largest influences.

Influence Coefficient	TN ID	Reaction	Measured Quantity	Reference
1.000	9133.1	[SH]- (g) → SH (g)	Δ_rH°(0 K) = 18669.543 ± 0.012 cm-1	Chaibi 2006
0.999	9132.1	SH (g) → [SH]+ (g)	Δ_rH°(0 K) = 84057.5 ± 3 cm-1	Hsu 1994, Milan 1996, as quoted by NIST WebBook
0.211	9130.1	SH (g) → H (g) + S (g)	Δ_rH°(0 K) = 29245 ± 25 cm-1	Zhou 2005
0.079	9115.4	HSOH (g) + OH (g) → SH (g) + HOOH (g)	Δ_rH°(0 K) = 20.37 ± 0.9 kcal/mol	Ruscic W1RO
0.064	9115.2	HSOH (g) + OH (g) → SH (g) + HOOH (g)	Δ_rH°(0 K) = 20.22 ± 1.0 kcal/mol	Ruscic G4
0.053	9115.1	HSOH (g) + OH (g) → SH (g) + HOOH (g)	Δ_rH°(0 K) = 20.05 ± 1.1 kcal/mol	Ruscic G3X
0.038	9115.3	HSOH (g) + OH (g) → SH (g) + HOOH (g)	Δ_rH°(0 K) = 19.04 ± 1.3 kcal/mol	Ruscic CBS-n
0.028	9114.4	HSOH (g) → SH (g) + OH (g)	Δ_rH°(0 K) = 68.75 ± 1.50 kcal/mol	Ruscic W1RO
0.027	9131.12	SH (g) → H (g) + S (g)	Δ_rH°(0 K) = 83.69 ± 0.20 kcal/mol	Feller 2008
0.025	9114.2	HSOH (g) → SH (g) + OH (g)	Δ_rH°(0 K) = 67.44 ± 1.60 kcal/mol	Ruscic G4
0.019	9131.13	SH (g) → H (g) + S (g)	Δ_rH°(0 K) = 349.53 ± 1.00 kJ/mol	Csaszar 2003a, note unc
0.017	9114.1	HSOH (g) → SH (g) + OH (g)	Δ_rH°(0 K) = 66.96 ± 1.72 (×1.114) kcal/mol	Ruscic G3X
0.015	9334.5	CH3CH2SH (g) → [CH3CH2]+ (g) + SH (g)	Δ_rH°(0 K) = 11.280 ± 0.040 eV	Ruscic W1RO
0.013	9114.3	HSOH (g) → SH (g) + OH (g)	Δ_rH°(0 K) = 68.62 ± 2.16 kcal/mol	Ruscic CBS-n
0.013	9130.2	SH (g) → H (g) + S (g)	Δ_rH°(0 K) = 29300 ± 100 cm-1	Morley 1993
0.012	9131.11	SH (g) → H (g) + S (g)	Δ_rH°(0 K) = 83.71 ± 0.30 kcal/mol	Karton 2011
0.008	9131.14	SH (g) → H (g) + S (g)	Δ_rH°(0 K) = 349.9 ± 1.5 kJ/mol	Peebles 2002, est unc
0.006	9139.3	H2S (g) → H (g) + SH (g)	Δ_rH°(0 K) = 31430 ± 20 cm-1	Cook 2001
0.006	9140.2	H2S (g) + Br (g) → SH (g) + HBr (g)	Δ_rG°(370 K) = 2.68 ± 0.33 kcal/mol	Nicovich 1992, 3rd Law
0.005	9315.5	CH3SH (g) → CH3 (g) + SH (g)	Δ_rH°(0 K) = 72.86 ± 1.50 kcal/mol	Ruscic W1RO

References

1		B. Ruscic, R. E. Pinzon, M. L. Morton, G. von Laszewski, S. Bittner, S. G. Nijsure, K. A. Amin, M. Minkoff, and A. F. Wagner, Introduction to Active Thermochemical Tables: Several "Key" Enthalpies of Formation Revisited. J. Phys. Chem. A 108, 9979-9997 (2004) [DOI: 10.1021/jp047912y]
2		B. Ruscic, R. E. Pinzon, G. von Laszewski, D. Kodeboyina, A. Burcat, D. Leahy, D. Montoya, and A. F. Wagner, Active Thermochemical Tables: Thermochemistry for the 21^st 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. 1.148 of the Thermochemical Network (2023); available at ATcT.anl.gov
4		T. L. Nguyen, J. Peeters, J.-F. Müller, A. Perera, D. H. Bross, B. Ruscic, and J. F. Stanton, Methanediol from Cloud-Processed Formaldehyde is Only a Minor Source of Atmospheric Formic Acid Natl. Acad. Sci. 120, e2304650120/1-8 (2023) [DOI: 10.1073/pnas.2304650120]
5		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]
6		B. Ruscic and D. H. Bross, Thermochemistry Computer Aided Chem. Eng. 45, 3-114 (2019) [DOI: 10.1016/B978-0-444-64087-1.00001-2]

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 [5] and Ruscic and Bross[6]).
Note that an uncertainty of ± 0.000 kJ/mol indicates that the estimated uncertainty is < ± 0.000₅ kJ/mol.

Website Functionality Credits

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

Acknowledgement

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