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
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas phase ion energetics data

Go To: Top, Vibrational and/or electronic energy levels, References, Notes

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

Go To: Top, Gas phase ion energetics data, References, Notes

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, 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

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References

• Symbols used in this document:
  

  EA	Electron affinity

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