CH3S
- Formula: CH3S
- Molecular weight: 47.100
- CAS Registry Number: 7175-75-9
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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 compiled as indicated in comments:
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
View reactions leading to CH3S+ (ion structure unspecified)
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
1.8670 ± 0.0040 | LPES | Schwartz, Davico, et al., 2000 | B |
1.871 ± 0.012 | LPES | Moran and Ellison, 1988 | B |
1.90 ± 0.13 | D-EA | Bartmess, Scott, et al., 1979 | value altered from reference due to change in acidity scale; B |
1.882 ± 0.022 | LPES | Engleking, Ellison, et al., 1978 | B |
1.8610 ± 0.0040 | LPD | Janousek and Brauman, 1980 | B |
1.8610 ± 0.0040 | LPD | Janousek, Reed, et al., 1980 | B |
1.36163 | SI | Page and Goode, 1969 | The Magnetron method, lacking mass analysis, is not considered reliable.; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.262 ± 0.005 | PI | Ruscic and Berkowitz, 1992 | LL |
9.225 ± 0.014 | PI | Nourbakhsh, Norwood, et al., 1991 | LL |
8.1 ± 0.3 | CIEL | Griffiths and Harris, 1987 | LBLHLM |
8.1 ± 0.1 | EI | Palmer and Lossing, 1962 | RDSH |
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.
Schwartz, Davico, et al., 2000
Schwartz, R.L.; Davico, G.E.; Lineberger, W.C.,
Negative-ion photoelectron spectroscopy of CH3S-,
J. Electron Spectros. Rel. Phenom., 2000, 108, 1-3, 163-168, https://doi.org/10.1016/S0368-2048(00)00125-0
. [all data]
Moran and Ellison, 1988
Moran, S.; Ellison, G.B.,
Photoelectron Spectroscopy of Sulfur Ions,
J. Phys. Chem., 1988, 92, 7, 1794, https://doi.org/10.1021/j100318a021
. [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]
Engleking, Ellison, et al., 1978
Engleking, P.C.; Ellison, G.B.; Lineberger, W.C.,
Laser photodetachment electron spectrometry of methoxide, deuteromethoxide, and thiomethoxide: Electron affinities and vibrational structure of CH3O, and CH3S,
J. Chem. Phys., 1978, 69, 1826. [all data]
Janousek and Brauman, 1980
Janousek, B.K.; Brauman, J.I.,
Electron photodetachment of thiomethoxyl and deuterothiomethoxyl anions: Electron affinities, vibrational frequencies, and spin-orbit splitting in CH3S- and CD3S-,
J. Chem. Phys., 1980, 72, 694. [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]
Page and Goode, 1969
Page, F.M.; Goode, G.C.,
Negative Ions and the Magnetron., Wiley, NY, 1969. [all data]
Ruscic and Berkowitz, 1992
Ruscic, B.; Berkowitz, J.,
Photoionization mass spectrometric studies of the isomeric transient species CH2SH and CH3S,
J. Chem. Phys., 1992, 97, 1818. [all data]
Nourbakhsh, Norwood, et al., 1991
Nourbakhsh, S.; Norwood, K.; He, G.-Z.; Ng, C.Y.,
Photoionization study of supersonically cooled polyatomic radicals: Heat of formation of CH3S+,
J. Am. Chem. Soc., 1991, 113, 6311. [all data]
Griffiths and Harris, 1987
Griffiths, W.J.; Harris, F.M.,
Ionization energies of CH3O and CH3S radicals measured by charge-inversion energy-loss spectrometry,
Chem. Phys. Lett., 1987, 142, 7. [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, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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