PREDISSOCIATION OF THE $A^{2}\Sigma^{+}$ STATE OF CARBON MONOFLUORIDE
Publisher:
Ohio State UniversityAbstract:
The predissociation In the $A^{2}\Sigma^{+}$ state of CF and the results of MCSCF calculations of the low lying CF electronic states have been described at previous $symposia.^{1,2}$ The width of the $A^{2}\Sigma^{+}$-X$^{2}\Pi$ (2,0) lines increases rapidly with rotational quantum number, $N^{\prime} > 35$. The ab initio potential for the predissociating state, $a^{4}\Sigma^{-}$, develops a barrier with a maximum near 3.5 $a_{0}$. We have calculated the vibrational overlap matrix elements for scaled potentials representing the $A^{2}\Sigma^{+}$ and $a^{4}\Sigma^{-}$ states. The line width pattern calculated from these matrix elements is consistent with the observed pattern. The influence of vibrational-rotational (shape) resonances of the $a^{4}\Sigma^{-}$ state on the line width pattern will be discussed.
Description:
$^{1}$W. P. White and C. W. Mathews, Twenty-fourth Symposium on Molecular Structure and Spectroscopy, 1969. $^{2}$W. P. White, R. M. Pitzer, C. W. Mathews, and T. H. Dunning, Twenty-sixth Symposium on Molecular Structure and Spectroscopy, 1971. Walter J. Steets is a NASA-NRC Resident Research Associate, 1974-1976.""
Author Institution: NASA, Johnson Space Center; Lockheed Electronics Company, Inc.
Author Institution: NASA, Johnson Space Center; Lockheed Electronics Company, Inc.
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articleOther Identifiers:
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