Publication
The Journal of Chemical Physics
Paper

Nonadiabatic effects in the collision of F(2P) with H 2(1Σg+). III Scattering theory and coupled-channel computations

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Abstract

The theory of nonreactive atom-diatom collisions in the presence of multiple electronic surfaces is developed in both space-fixed and body-fixed coordinate frames. The formalism is applied to the scattering of fluorine atoms by para- and ortho-hydrogen molecules. Coupled-channel computations of integral cross sections for fine structure and rotational transitions are carried out in the rigid rotor approximation using ab initio self-consistent-field potential energy surfaces and are facilitated by the use of a diabatic representation of the molecular channel states. The magnitudes of the cross sections at a specific translational energy are found in general to decrease with increasing energy defect. For F(2P1/2)+p-H2 the cross section for a near resonant electronic-to-rotational energy transfer process dominates other inelastic transitions by at least an order of magnitude. Copyright © 1977 American Institute of Physics.

Date

26 Aug 2008

Publication

The Journal of Chemical Physics

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