THE ROLE OF AUTOIONIZATION IN MOLECULAR PHOTOELECTRON SPECTROSCOPY
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Date
1970
Authors
Smith, A. L.
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
The Fano configuration interaction theory of autoionization is used to calculate partial photoionization cross-sections for production of diatomic ions in specific vibrational states. The anomalous vibrational distribution in the photoelectron spectrum of $O_{2}$ excited with the neon resonance $line^{1}$ is explained. The vibrational distribution in $O^{+}_{2}(X^{2} \Pi_{g}$) is calculated for both a uniform excitation continuum and for the solar vacuum-ultraviolet spectrum as an excitation source, with the contribution from autoionization of the upper states of the Hopfield bands of $O_{2}$ explicitly included. About 5% of the $O^{+}_{2}$ produced by solar photoionization has more than 1 eV of vibrational energy.
Description
$^{1}$P. Natalis and J. E. Collin, Chem. Phys. Lett. 2, 414 (1968).""
Author Institution: Department of Chemistry, Yale University
Author Institution: Department of Chemistry, Yale University