Benzene, (methylthio)-

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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid10.35 ± 0.17kcal/molCcrGood, 1972ALS
Δfliquid11.47 ± 0.47kcal/molCcrMackle and Mayrick, 1962ALS
Quantity Value Units Method Reference Comment
Δcliquid-1085.84 ± 0.86kcal/molCcrGood, 1972Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -1085.73 ± 0.14 kcal/mol; ALS
Δcliquid-1086.94 ± 0.47kcal/molCcrMackle and Mayrick, 1962ALS
Quantity Value Units Method Reference Comment
liquid60.349cal/mol*KN/AMesserly, Finke, et al., 1974DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
49.240298.15Messerly, Finke, et al., 1974T = 10 to 330 K.; DH

Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C7H7S- + Hydrogen cation = Benzene, (methylthio)-

By formula: C7H7S- + H+ = C7H8S

Quantity Value Units Method Reference Comment
Δr386.3 ± 5.1kcal/molG+TSIngemann and Nibbering, 1985gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr379.0 ± 5.0kcal/molIMRBIngemann and Nibbering, 1985gas phase; value altered from reference due to change in acidity scale

C7H7S- + Hydrogen cation = Benzene, (methylthio)-

By formula: C7H7S- + H+ = C7H8S

Quantity Value Units Method Reference Comment
Δr381.5 ± 2.1kcal/molG+TSIngemann and Nibbering, 1985gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr374.2 ± 2.0kcal/molIMREIngemann and Nibbering, 1985gas phase; value altered from reference due to change in acidity scale

Gas phase ion energetics data

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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:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)7.94 ± 0.02eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)208.6kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity201.6kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.93PEBehan, Johnstone, et al., 1976LLK
7.96 ± 0.01PITrofimov, Mel'der, et al., 1975LLK
8.08CTSAloisi, Santini, et al., 1974LLK
7.92 ± 0.02PIPotapov, Kardash, et al., 1972LLK
7.9 ± 0.15CTSVoigt and Reid, 1964RDSH
8.9EIGowenlock, Kay, et al., 1963RDSH
8.07PETraven', Redchenko, et al., 1981Vertical value; LLK
8.04PEKobayashi, 1978Vertical value; LLK
8.02PESchweig and Thon, 1976Vertical value; LLK
8.60PEDewar, Ernstbrunner, et al., 1974Vertical value; LLK
8.07PEDewar, Ernstbrunner, et al., 1974Vertical value; LLK
8.07PEBock and Wagner, 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CHS+14.5?EIGowenlock, Kay, et al., 1963RDSH
C6H+14.4?EIGowenlock, Kay, et al., 1963RDSH
C6H5S+12.1 ± 0.1?EIPalmer and Lossing, 1962RDSH
C6H6+12.0?EIGowenlock, Kay, et al., 1963RDSH

De-protonation reactions

C7H7S- + Hydrogen cation = Benzene, (methylthio)-

By formula: C7H7S- + H+ = C7H8S

Quantity Value Units Method Reference Comment
Δr386.3 ± 5.1kcal/molG+TSIngemann and Nibbering, 1985gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr379.0 ± 5.0kcal/molIMRBIngemann and Nibbering, 1985gas phase; value altered from reference due to change in acidity scale; B

C7H7S- + Hydrogen cation = Benzene, (methylthio)-

By formula: C7H7S- + H+ = C7H8S

Quantity Value Units Method Reference Comment
Δr381.5 ± 2.1kcal/molG+TSIngemann and Nibbering, 1985gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr374.2 ± 2.0kcal/molIMREIngemann and Nibbering, 1985gas phase; value altered from reference due to change in acidity scale; B

References

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, 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.

Good, 1972
Good, W.D., Enthalpies of combustion of 18 organic sulfur compounds related to petroleum, J. Chem. Eng. Data, 1972, 17, 158-162. [all data]

Mackle and Mayrick, 1962
Mackle, H.; Mayrick, R.G., Studies in the thermochemistry of organic sulphides. Part 1.-The gas-phase heats of formation of phenyl methyl, phenyl ethyl, benzyl methyl, and benzyl ethyl sulphides, Trans. Faraday Soc., 1962, 58, 33-39. [all data]

Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P., Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]

Messerly, Finke, et al., 1974
Messerly, J.F.; Finke, H.L.; Todd, S.S., Low-temperature thermal studies on six organo-sulfur compounds, J. Chem. Thermodynam., 1974, 6, 635-657. [all data]

Ingemann and Nibbering, 1985
Ingemann, S.; Nibbering, N.M.M., Gas phase chemistry of alpha-thio carbanions, Can. J. Chem., 1985, 62, 2273. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Behan, Johnstone, et al., 1976
Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W., An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes, Org. Mass Spectrom., 1976, 11, 207. [all data]

Trofimov, Mel'der, et al., 1975
Trofimov, B.A.; Mel'der, U.K.; Pikver, R.I.; Vyalykh, E.P., Ionization potentials of unsaturated and sulfides the participation of neighboring multiple bonds of heteroatoms in the stabilization of the radical cation, Teor. Eksp. Khim., 1975, 11, 129. [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]

Potapov, Kardash, et al., 1972
Potapov, V.K.; Kardash, I.E.; Sorokin, V.V.; Sokolov, S.A.; Evlasheva, T.I., Photoionization of heteroaromatic compounds, Khim. Vys. Energ., 1972, 6, 392. [all data]

Voigt and Reid, 1964
Voigt, E.M.; Reid, C., Ionization potentials of substituted benzenes and their charge-transfer spectra with tetracyanoethylene, J. Am. Chem. Soc., 1964, 86, 3930. [all data]

Gowenlock, Kay, et al., 1963
Gowenlock, B.G.; Kay, J.; Majer, J.R., Electron impact studies of some sulphides and disulphides, J. Chem. Soc. Faraday Trans., 1963, 59, 2463. [all data]

Traven', Redchenko, et al., 1981
Traven', V.F.; Redchenko, V.V.; Eismont, M.Y.; Stepanov, B.I., Photoelectron spectra and electronic and steric structures of silicon and sulfur-containing analogs of 9,10-dihydroanthracene, J. Gen. Chem. USSR, 1981, 51, 1099, In original 1297. [all data]

Kobayashi, 1978
Kobayashi, T., A simple general tendency in photoelectron angular distributions of some monosubstituted benzenes, Phys. Lett., 1978, 69, 105. [all data]

Schweig and Thon, 1976
Schweig, A.; Thon, N., Measurement of relative conformational stabilities by variable temperature photoelectron spectroscopy. A study of rotational isomerism in thioanisole, Chem. Phys. Lett., 1976, 38, 482. [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]

Bock and Wagner, 1972
Bock, H.; Wagner, G., Electron lone pairs in organic sulfides and disulfides, Angew. Chem. Int. Ed. Engl., 1972, 11, 119. [all data]

Palmer and Lossing, 1962
Palmer, T.F.; Lossing, F.P., Free radicals by mass spectrometry. XXVIII. The HS, CH3S, and phenyl-S radicals: ionization potentials and heats of formation, J. Am. Chem. Soc., 1962, 84, 4661. [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References