CH3S

• Formula: CH₃S
• Molecular weight: 47.100
• CAS Registry Number: 7175-75-9
• Information on this page:
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
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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

Ionization energy determinations

Vibrational and/or electronic energy levels

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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: Marilyn E. Jacox

State:   B

State:   ?

State:   A

State:   X

Additional references: Jacox, 1994, page 237; Jacox, 1998, page 272; Jacox, 2003, page 259; Jacox, 1983; Endo, Saito, et al., 1986; Lee, Chiang, et al., 1990; Hsu and Ng, 1994; Pushkarsky, Applegate, et al., 2000

Notes

References

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, NIST Free Links, 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]

Callear and Dickson, 1970
Callear, A.B.; Dickson, D.R., Transient spectra and primary processes in the flash photolysis of CH3SSCH3, CH3SCH3, CH3SH and C2H5SH, Trans. Faraday Soc., 1970, 66, 1987, https://doi.org/10.1039/tf9706601987 . [all data]

Anastasi, Broomfield, et al., 1991
Anastasi, C.; Broomfield, M.; Nielsen, O.J.; Pagsberg, P., Ultraviolet absorption spectra and kinetics of CH3S and CH2SH radicals, Chem. Phys. Lett., 1991, 182, 6, 643, https://doi.org/10.1016/0009-2614(91)90139-Z . [all data]

Bise, Choi, et al., 1999
Bise, R.T.; Choi, H.; Pedersen, H.B.; Mordaunt, D.H.; Neumark, D.M., Photodissociation spectroscopy and dynamics of the methylthio radical (CH[sub 3]S), J. Chem. Phys., 1999, 110, 2, 805, https://doi.org/10.1063/1.478048 . [all data]

Ohbayashi, Akimoto, et al., 1977
Ohbayashi, K.; Akimoto, H.; Tanaka, I., Emission spectrum of CH3S radical, Chem. Phys. Lett., 1977, 52, 1, 47, https://doi.org/10.1016/0009-2614(77)85117-8 . [all data]

Suzuki, Inoue, et al., 1984
Suzuki, M.; Inoue, G.; Akimoto, H., Laser induced fluorescence of CH3S and CD3S radicals, J. Chem. Phys., 1984, 81, 12, 5405, https://doi.org/10.1063/1.447685 . [all data]

Hsu, Liu, et al., 1989
Hsu, Y.-C.; Liu, X.; Miller, T.A., Rotational analysis of A 2A1↔X 2E electronic transition of the jet-cooled methylthio radical, J. Chem. Phys., 1989, 90, 12, 6852, https://doi.org/10.1063/1.456258 . [all data]

Chiang and Lee, 1991
Chiang, S.-Y.; Lee, Y.-P., Vibronic analysis of the A 2A1--X 2E laser-induced fluorescence of jet-cooled CH3S, J. Chem. Phys., 1991, 95, 1, 66, https://doi.org/10.1063/1.461786 . [all data]

Liu, Matsuda, et al., 2003
Liu, C.-P.; Matsuda, Y.; Lee, Y.-P., Highly predissociative levels of CH[sub 3]S (A [sup 2]A[sub 1]) detected with degenerate four-wave mixing, J. Chem. Phys., 2003, 119, 23, 12335, https://doi.org/10.1063/1.1624832 . [all data]

Liu, Reid, et al., 2005
Liu, C.-P.; Reid, S.A.; Lee, Y.-P., Two-color resonant four-wave mixing spectroscopy of highly predissociated levels in the A [sup 2]A[sub 1] state of CH[sub 3]S, J. Chem. Phys., 2005, 122, 12, 124313, https://doi.org/10.1063/1.1867333 . [all data]

Han, Fu, et al., 2011
Han, H.-L.; Fu, L.; Lee, Y.-P., Infrared spectrum of mass-selected CH3S radicals investigated with infrared+vacuum ultraviolet photoionization, Chem. Phys. Lett., 2011, 515, 1-3, 1, https://doi.org/10.1016/j.cplett.2011.06.090 . [all data]

Schwartz, Davico, et al., 2000, 2
Schwartz, R.L.; Davico, G.E.; Lineberger, W.C., Negative-ion photoelectron spectroscopy of CH3S-, J. Electron Spectrosc. Relat. Phenom., 2000, 108, 1-3, 163, https://doi.org/10.1016/S0368-2048(00)00125-0 . [all data]

Bahou and Lee, 2010
Bahou, M.; Lee, Y.-P., Diminished cage effect in solid p-H[sub 2]: Infrared absorption of CH[sub 3]S observed from photolysis in situ of CH[sub 3]SH, CH[sub 3]SCH[sub 3], or CH[sub 3]SSCH[sub 3] isolated in p-H[sub 2] matrices, J. Chem. Phys., 2010, 133, 16, 164316, https://doi.org/10.1063/1.3502105 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Jacox, 1983
Jacox, M.E., The reaction of F atoms with CH, Can. J. Chem., 1983, 61, 5, 1036, https://doi.org/10.1139/v83-182 . [all data]

Endo, Saito, et al., 1986
Endo, Y.; Saito, S.; Hirota, E., The microwave spectrum of the thiomethoxy radical CH3S, J. Chem. Phys., 1986, 85, 4, 1770, https://doi.org/10.1063/1.451178 . [all data]

Lee, Chiang, et al., 1990
Lee, Y.-Y.; Chiang, S.-Y.; Lee, Y.-P., Radiative lifetimes of the A 2A1 (v3=0--2) states of CH3S, J. Chem. Phys., 1990, 93, 6, 4487, https://doi.org/10.1063/1.458687 . [all data]

Hsu and Ng, 1994
Hsu, C.-W.; Ng, C.Y., Nonresonant two-photon pulsed field ionization of CH3S formed in photodissociation of CH3SH and CH3SSCH3, J. Chem. Phys., 1994, 101, 7, 5596, https://doi.org/10.1063/1.467346 . [all data]

Pushkarsky, Applegate, et al., 2000
Pushkarsky, M.B.; Applegate, B.E.; Miller, T.A., Photofragmentation dynamics of the thiomethoxy radical, J. Chem. Phys., 2000, 113, 21, 9649, https://doi.org/10.1063/1.1289461 . [all data]

Notes

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• Symbols used in this document:
  

  EA	Electron affinity

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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