CALCULATION OF RADIATIVE TRANSITION PROBABILITIES IN THE $B^{1}\Pi_{u} - X^{1}\Sigma^{+}_{g}$ BANDS OF $Li_{2}$ AND $Na_{2}$
Loading...
Date
1984
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Using accurate hybrid potential energy curves and ab initio transition moment $functions^{1}$, we have calculated absolute radiative transition probabilities for the $B^{1}\Pi_{u}(v^{\prime})\to X^{1}\Sigma_{g}(v^{\prime \prime})$ bands of $Li_{2}$ and $Na_{2}$. In the case of $Li_{2}, v""$ runs from $0 \to 35$ and $v'$ runs from $0\to 17; v'=14-17$ levels are above the dissociation limit due to the existence of a maximum $(500-600 cm^{-1})$ in the potential curve at about 6 {\AA}. In the case of $Na_{2}, v""$ runs from $0 \to 60$ and $v'$ runs from $0 \to 34; v' = 27 - 34$ levels are above the dissociation limit due to the existence of a maximum $(400-500 cm^{-1})$ in the potential curve at about 7 {\AA}. Comparisons of calculated and experimental intensities will be presented. An analysis of how these results help determine the barrier heights in the $B^{1}\Pi_{u}$ states will also be presented.
Description
$^{1}$ D.D. Konowalow, M. E. Rosenkrantz and D.S. Hochhauser, J. Mol. Spectrosc. 99, 321 (1983).
Author Institution: Department of Chemistry, Wartburg College; Iowa Laser Facility and Department of Chemistry, University of Iowa
Author Institution: Department of Chemistry, Wartburg College; Iowa Laser Facility and Department of Chemistry, University of Iowa