ROTATIONAL ANALYSIS OF BANDS IN THE 2348 {\AA} SYSTEM OF $SO_{2}$
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Date
1972
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Ohio State University
Abstract
Several bands of the 2350 {\AA} system of sulfur dioxide have been rotationally analyzed. These bands are type A transitions of an asymmetric rotor; thus the electronic transition is $^{e}B_{2} \leftarrow ^{e}A_{1}$, identified with the $\Pi^{*} \leftarrow \Pi$ one-electron promotion $2b_{1} \leftarrow 1a_{2}$. The present results support the vibrational analysis given by Coon and $Tsao^{1}$, but are not in agreement with the partial rotational analyses given by $Dubois^{2}$ or with the suggestion that overlapping band systems are present in this region. Constants for two low-energy transitions in the system are given below (in $cm^{-1}$). Results for other transitions will be discussed.\\ \def \a {\hphantom {$_{K}$}} \def \b {\hphantom {$_{J}$}} \begin{tabular}{lllll} \hline $\nu_{000}$ &42573.30 &$A_{000}$ $1.151_{2}$ &$10^{5}D_{J}$ \a$0.02_{8}$ &$\Delta_{000}$ $0.16$ amu {\AA}$^{2}$ \\ &&$B_{000}$ $0.347_{3}$ &$10^{5}D_{JK}$ $1.6_{1}$ \\ & &$C_{000}$ $0.266_{1}$ &$10^{5}D_{K}$ \b $0.9_{1}$ &\\ &&&&\\ $\nu_{000}$ &42950.88 &$A_{010}$ $1.171_{4}$ &$10^{5}D_{J}$ \a $0.02_{5}$ &$\Delta_{010}$ $0.30$ \\ &&$B_{010}$ $0.345_{9}$ &$10^{5}D_{JK}$ $1.6_{1}$ \\ & &$C_{010}$ $0.265_{8}$ &$10^{5}D_{K}$ \b $1.1_{5}$ &\\ \hline \end{tabular}
Description
$^{1}$ J. B. Coon and P. Tsao, XXVI Symp. Mo1. Struct., Columbus, Ohio, 1971. $^{2}$ I. Dubois, J. Mo1. Struct. 3, 269 (1969)""
Author Institution: Department of Chemistry, University of western Ontario London
Author Institution: Department of Chemistry, University of western Ontario London