ENERGY TRANSFER IN $A^{2}\Sigma^{+} OH$
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Date
1976
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Publisher
Ohio State University
Abstract
In the two previous Ohio State meetings, we have presented various aspects of our results on vibrational and angular momentum transfer of OH molecules excited, by a tunable dye laser, to specific $v^{\prime}$, $J^{\prime}$ levels of the $A^{2}\Sigma^{+} $ state. This study is now complete and the state to state transfer rates provide an overall picture of the interactions of electronically excited OH with atomic and diatomic collision partners. In particular, the results indicate the influence of the long range attractive part of the interaction potential. Such a view is supported by the unification provided through the application of surprisal $analysis.^{1}$ Although the surprisals of the transfer rates depend linearly on the energy defect of the transitions, they have unusually low slopes. For example, the slope for the transfer of rotational energy with change of spin component $(\Delta N \neq \Delta J)$ is nearly zero, indicating the close coupling of the OH and its collision partner.
Description
$^{1}$ R. E. Christoffersen and G. M. Maggiora, Chem. Phys. Lett. 3, 419(1969).
Author Institution: Department of Chemistry, University of Wisconsin; Ballistic Research Laboratories, Aberdeen Proving Ground
Author Institution: Department of Chemistry, University of Wisconsin; Ballistic Research Laboratories, Aberdeen Proving Ground