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  3. High-resolution spectroscopy of jet-cooled (SO2)-S-32 and (SO2)-S-34: The (a)over-tilde(3)B(1)-(X)over-tilde(1)A(1), 2(0)(1) and 1(0)(1) bands

High-resolution spectroscopy of jet-cooled (SO2)-S-32 and (SO2)-S-34: The (a)over-tilde(3)B(1)-(X)over-tilde(1)A(1), 2(0)(1) and 1(0)(1) bands

TitleHigh-resolution spectroscopy of jet-cooled (SO2)-S-32 and (SO2)-S-34: The (a)over-tilde(3)B(1)-(X)over-tilde(1)A(1), 2(0)(1) and 1(0)(1) bands
Publication TypeJournal Article
Year of Publication2000
AuthorsHuang, CL, Ju, SS, Chen, IC, Merer, AJ, Ni, CK, Kung, AH
JournalJournal of Molecular Spectroscopy
Volume203
Pagination151-157
Date PublishedSep
Type of ArticleArticle
ISBN Number0022-2852
KeywordsABSORPTION, AMPLIFIED SPONTANEOUS EMISSION, ROTATIONAL STRUCTURE, SO2, SPECTRUM, STATE, STIMULATED BRILLOUIN-SCATTERING, sulfur dioxide, SULFUR-DIOXIDE, SYSTEM
Abstract

Laser-induced excitation spectra of the two bands (a) over tilde(3)B(1)-(X) over tilde(1)A(1), 2(0)(1) and 1(0)(1) of (SO2)-S-32 and (SO2)-S-34 have been recorded in a supersonic jet at a resolution of 0.015 cm(-1). The rotational and electron-spin fine structure has been analyzed for both isotopic species. Analysis of the rotational and electron-spin fine structure yields precise values of the rotational constants A, B, and C and the spin constants alpha and beta for both (SO2)-S-32 and (SO2)-S-34 in the states (a) over tilde(3)B(1) (010) and (100). No interaction between these two vibrational States with any nearby triplet state is observed for rotational levels with J less than or equal to 8 and K less than or equal to 2. (C) 2000 Academic Press.
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