TRANSITION MOMENT VARIATION IN THE $A^{2} \Sigma \rightarrow X^{2} \Pi$ TRANSITION OF HYDROGEN HALIDES

Loading...
Thumbnail Image

Date

1973

Journal Title

Journal ISSN

Volume Title

Publisher

Ohio State University

Research Projects

Organizational Units

Journal Issue

Abstract

The relative emission intensity of vibrational bands due to the $A^{2} \Sigma \rightarrow X^{2} \Pi$ transition in $HCl^{+}$, $DCl^{+}$ and $HBr^{+}$ have been measured. The intensities of bands in a progression from a fixed upper state were compared with the Franck-Condon factors. The observed intensities became increasingly smaller than the Franck-Condon factors predicted as $v^{\prime\prime}$ increased in each progression. The results were interpreted as a decrease in the transition moment with increasing internuclear separation. When treated in this fashion $DCl^{+}$ gives the same quautitative decrease as $HCl^{+}$. The intensity variation can be fit by using a power series expansion in the internuclear separation for the electric dipole moment.

Description

Author Institution: Department of Chemistry, Temple University; Department of Chemistry, Yale University

Keywords

Citation