The vibronically-resolved emission spectrum of disulfur monoxide S2O : an algebraic calculation and quantitative interpretation of Franck–Condon transition intensities
- Müller, T.
- Vaccaro, P. H.
- Pérez Bernal, Francisco
- Iachello, F.
Publication date
January 1999
DOI Publisher
AIP Publishing ISSN
0021-9606 Journal
The Journal of Chemical Physics Citation count (estimate)
46Abstract
Emission spectra obtained from jet-cooled disulfur monoxide (S2O) molecules have been interpreted by means of a novel Lie algebraic formalism that makes possible the facile evaluation of multidimensional Franck–Condon factors. Fluorescence accompanying selective excitation of isolated vibronic bands in the S2O C˜ 1A8 X˜ 1A8(p* p) absorption system has been dispersed under moderate spectral resolution, allowing assignment of ground state levels possessing up to 20 quanta of vibration in the n 2 S–S stretching mode @Evib(X˜ )<13 900 cm21#. Aside from providing a rigorous and economical description for the inherently anharmonic nature of highly-excited polyatomic species, our algebraic approach enables quantitative information on molecu...
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