title: Electronic spectra of the jet-cooled 1-methylvinylthio radical.
abstract: Electronic spectra of the B̃-X̃ transition of the 1-methylvinylthio radical were observed in a discharged jet of propylene sulfide by laser-induced fluorescence spectroscopy. Identification of the spectral carrier was made by comparing the observed spectra with results of molecular orbital calculations, in particular, for vibrational frequencies, rotational contour simulations, and the Franck-Condon simulations. Vibrational structures observed in the electronic spectra indicate that the 1-methylvinylthio radical can be regarded as a molecule with C(s) symmetry at the zero-point levels of both the excited and ground states.
authors.affiliation: Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Tokyo 153-8902, Japan.
authors.forename: Masakazu
authors.initials: M
authors.lastname: Nakajima
authors.forename: Akira
authors.initials: A
authors.lastname: Miyoshi
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Sumiyoshi
authors.forename: Yasuki
authors.initials: Y
authors.lastname: Endo