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Ethanethiol

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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
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 C2H6S+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)9.31 ± 0.03eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)789.6kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity758.4kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.28PITraeger, 1984LBLHLM
9.3PEOhno, Imai, et al., 1983LBLHLM
9.36PEKimura, Katsumata, et al., 1981LLK
8.69PEWeiner and Lattman, 1978LLK
9.29PEOgata, Onizuka, et al., 1973LLK
9.3 ± 0.1EIKeyes and Harrson, 1968RDSH
9.285 ± 0.005PIWatanabe, Nakayama, et al., 1962RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CHS+17.7 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
CH2S+11.2 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
CH3S+11.4 ± 0.1CH3EIKeyes and Harrson, 1968RDSH
CS+11.7 ± 0.3CH4+H2EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H2+14.7 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H3+15.8 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H3S+18.3 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H4+13.0 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H4S+14.0 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H5+11.26SHPITraeger, 1984LBLHLM
C2H5+12.1 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H5S+11.5HEIAmos, Gillis, et al., 1969RDSH
H2S+11.8 ± 0.3C2H4EIGal'perin, Bogolyubov, et al., 1969RDSH
H3S+12.41?EIHaney and Franklin, 1969RDSH
S+14.2 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH

De-protonation reactions

C2H5S- + Hydrogen cation = Ethanethiol

By formula: C2H5S- + H+ = C2H6S

Quantity Value Units Method Reference Comment
Deltar1488. ± 8.8kJ/molD-EAJanousek, Reed, et al., 1980gas phase; B
Deltar1486. ± 9.2kJ/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Deltar1460. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; 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.

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]

Traeger, 1984
Traeger, J.C., Heat of formation for the SH radical by photoionization mass spectrometry, Org. Mass Spectrom., 1984, 19, 514. [all data]

Ohno, Imai, et al., 1983
Ohno, K.; Imai, K.; Matsumoto, S.; Harada, Y., Penning ionization electron spectroscopy of C2H5X (X = NH2, OH, H, Cl, I) relative reactivity of orbital localizing on functional groups upon electrophilic attack by metastable helium atoms, J. Phys. Chem., 1983, 87, 4346. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Weiner and Lattman, 1978
Weiner, M.A.; Lattman, M., Ultraviolet photoelectron spectra of some Cr(CO)5L complexes containing organosulfide and organophosphine ligands, Inorg. Chem., 1978, 17, 1084. [all data]

Ogata, Onizuka, et al., 1973
Ogata, H.; Onizuka, H.; Nihei, Y.; Kamada, H., The photoelectron spectra of alcohols, mercaptans and amines, Bull. Chem. Soc. Jpn., 1973, 46, 3036. [all data]

Keyes and Harrson, 1968
Keyes, B.G.; Harrson, A.G., The fragmentation of aliphatic sulfur compounds by electron impact, J. Am. Chem. Soc., 1968, 90, 5671. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [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]

Amos, Gillis, et al., 1969
Amos, D.; Gillis, R.G.; Occolowitz, J.L.; Pisani, J.F., The ions [CH3S]+, [C2H5S]+ and [CH3O]+ formed by electron-impact, Org. Mass Spectrom., 1969, 2, 209. [all data]

Haney and Franklin, 1969
Haney, M.A.; Franklin, J.L., Heats of formation of H3O+, H3S+, and NH4+ by electron impact, J. Chem. Phys., 1969, 50, 2028. [all data]

Janousek, Reed, et al., 1980
Janousek, B.K.; Reed, K.J.; Brauman, J.I., Electron photodetachment from mercaptyl anions (RS- electron affinities of mercaptyl radicals and the S-H bond strength in mercaptans), J. Am. Chem. Soc., 1980, 102, 3125. [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]


Notes

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