Photoexcitation and photofragment fluorescence studies of methanethiol in vacuum ultraviolet

Photoabsorption cross sections and fluorescence excitation spectra of methanethiol vapor have been measured in the 130–200 nm wavelength region using synchrotron radiation. Many sharp structures observed in the 130–180 nm region are classified into three Rydberg series. The fluorescence which starts...

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Bibliographic Details
Published inChemical physics Vol. 116; no. 3; pp. 449 - 456
Main Authors Tokue, I., Hiraya, A., Shobatake, K.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.09.1987
Elsevier
Subjects
Atomic and molecular physics
Exact sciences and technology
Molecular properties and interactions with photons
Photon interactions with molecules
Physics
Fluorescence spectrum
Thiol
Cross section
Rydberg state
Photodissociation
Experimental study
Vacuum ultraviolet spectrum
Absorption spectrum
Saturated aliphatic compound
Gaseous state
Vibronic transition
Synchrotron radiation
Organic compounds
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Summary:Photoabsorption cross sections and fluorescence excitation spectra of methanethiol vapor have been measured in the 130–200 nm wavelength region using synchrotron radiation. Many sharp structures observed in the 130–180 nm region are classified into three Rydberg series. The fluorescence which starts to appear at 175.2±2.0 nm is attributed to the CH 3S(Ã 2A 1-X̃ 2E) band. The photodissociation processes are discussed in accord with the CH 3S(Ã-X̃) fluorescence observed.
ISSN:0301-0104
DOI:10.1016/0301-0104(87)80212-4