Benzenethiol
- Formula: C6H6S
- Molecular weight: 110.177
- IUPAC Standard InChIKey: RMVRSNDYEFQCLF-UHFFFAOYSA-N
- CAS Registry Number: 108-98-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Isotopologues:
- Other names: Mercaptobenzene; Phenol, thio-; Phenyl mercaptan; Phenylthiol; Thiophenol; Rcra waste number P014; Thiofenol; UN 2337; USAF XR-19; NSC 6953; 930-69-8
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Gas phase ion energetics data
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C6H6S+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.30 ± 0.01 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.3 ± 0.05 | TRPI | Faulk, Dunbar, et al., 1990 | LL |
8.3 | PE | Ashby, Enemark, et al., 1988 | LL |
8.3 | PE | Carnovale, Kibel, et al., 1982 | LBLHLM |
8.36 | CTS | Aloisi, Santini, et al., 1974 | LLK |
9.0 ± 0.1 | EI | Henion and Kingston, 1973 | LLK |
8.28 | PE | Frost, Herring, et al., 1972 | LLK |
8.32 ± 0.01 | PI | Matsunaga, 1961 | RDSH |
8.5 | PE | Ashby, Enemark, et al., 1988 | Vertical value; LL |
8.49 | PE | Carnovale, Kibel, et al., 1982 | Vertical value; LBLHLM |
8.47 | PE | Dewar, Ernstbrunner, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
De-protonation reactions
By formula: C6H5S- + H+ = C6H6S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1424. ± 8.8 | kJ/mol | G+TS | Taft and Bordwell, 1988 | gas phase; B |
ΔrH° | >1423. ± 7.5 | kJ/mol | D-EA | Richardson, Stephenson, et al., 1975 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1395. ± 8.8 | kJ/mol | IMRE | Guillemin, Riague, et al., 2005 | gas phase; B |
ΔrG° | 1397. ± 8.4 | kJ/mol | IMRE | Taft and Bordwell, 1988 | gas phase; B |
ΔrG° | >1395. ± 7.9 | kJ/mol | H-TS | Richardson, Stephenson, et al., 1975 | gas phase; B |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Faulk, Dunbar, et al., 1990
Faulk, J.D.; Dunbar, R.C.; Lifshitz, C.,
Slow Dissociations of thiophenol molecular ion. Study by TRPD and TPIMS,
J. Am. Chem. Soc., 1990, 112, 7893. [all data]
Ashby, Enemark, et al., 1988
Ashby, M.T.; Enemark, J.H.; Lichtenberger, D.L.,
Destabilizing d -p orbital interactions and the alkylation reactions of iron(II)-thiolate complexes,
Inorg. Chem., 1988, 27, 191. [all data]
Carnovale, Kibel, et al., 1982
Carnovale, F.; Kibel, M.H.; Nyberg, G.L.; Peel, J.B.,
Photoelectron spectroscopic assignment of the p-states of benzenethiol,
J. Electron Spectrosc. Relat. Phenom., 1982, 25, 171. [all data]
Aloisi, Santini, et al., 1974
Aloisi, G.G.; Santini, S.; Sorriso, S.,
Molecular complexes of substituted diphenyl sulphides with π acceptors. Charge transfer spectra and ionization potentials of the donors,
J. Chem. Soc. Faraday Trans. 1, 1974, 70, 1908. [all data]
Henion and Kingston, 1973
Henion, J.D.; Kingston, D.G.I.,
Mass spectrometry of organic compounds. VII. Energetics of substituent isomerization in diphenyl sulfide and diphenyl ether,
J. Am. Chem. Soc., 1973, 95, 8358. [all data]
Frost, Herring, et al., 1972
Frost, D.C.; Herring, F.G.; Katrib, A.; McDowell, C.A.; McLean, R.A.N.,
Photoelectron spectra of CH3SH, (CH3)2S, C6H5SH, and C6H5CH2SH; the bonding between sulfur and carbon,
J. Phys. Chem., 1972, 76, 1030. [all data]
Matsunaga, 1961
Matsunaga, F.M.,
Photoionization yield of several molecules in the Schumann region,
Contribution No. 27, Hawaii Institute of, 1961, Geophysics, Honolulu. [all data]
Dewar, Ernstbrunner, et al., 1974
Dewar, P.S.; Ernstbrunner, E.; Gilmore, J.R.; Godfrey, M.; Mellor, J.M.,
Conformational analysis of alkyl aryl ethers and alkyl aryl sulphides by photoelectron spectroscopy,
Tetrahedron, 1974, 30, 2455. [all data]
Gal'perin, Bogolyubov, et al., 1969
Gal'perin, Ya.V.; Bogolyubov, G.M.; Grishin, N.N.; Petrov, A.A.,
Organic derivatives of elements of groups V and VI. VI. Mass spectra of compounds with S-S bonds,
Zh. Obshch. Khim., 1969, 39, 1599, In original 1567. [all data]
Bogolyubov, Plotnikov, et al., 1969
Bogolyubov, G.M.; Plotnikov, V.F.; Boiko, Yu.A.; Petrov, A.A.,
Organic derivatives of elements of groups V and VI. IX. Mass spectra of vinylacetylene sulfides,
Zh. Obshch. Khim., 1969, 39, 2467, In original 2407. [all data]
Taft and Bordwell, 1988
Taft, R.W.; Bordwell, F.G.,
Structural and Solvent Effects Evaluated from Acidities Measured in Dimethyl Sulfoxide and in the Gas Phase,
Acc. Chem. Res., 1988, 21, 12, 463, https://doi.org/10.1021/ar00156a005
. [all data]
Richardson, Stephenson, et al., 1975
Richardson, J.H.; Stephenson, L.M.; Brauman, J.I.,
Photodetachment of electrons from phenoxides and thiophenoxide,
J. Am. Chem. Soc., 1975, 97, 2967. [all data]
Guillemin, Riague, et al., 2005
Guillemin, J.C.; Riague, E.H.; Gal, J.F.; Maria, P.C.; Mo, O.; Yanez, M.,
Acidity trends in alpha,beta-unsaturated sulfur, selenium, and tellurium derivatives: Comparison with C-, Si-, Ge-, Sn-, N-, P-, As-, and Sb-containing analogues,
Chem. Eur. J., 2005, 11, 7, 2145-2153, https://doi.org/10.1002/chem.200400989
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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