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Inelastic and reactive scattering of Xe(3P2) by CH3I, CH3Br and CH3Cl: opacity functions and excitation functions

✍ Scribed by J.P. Simons; C. Washington

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 389 KB
Volume: 138
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)80371-8

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✦ Synopsis

Differential cross sections for the elastic scattering of Xe(3P2) by CH3Br and CH3Cl have been determined at superthennal collision energies. An optical model analysis has been employed to extract opacity functions and excitation functions for the inelastic processes which deplete the elastically scattered component at wide angles. The results for the reactive scattering of Xe( 3P2) are compared with those from an earlier (but supplemented) study of Xe( 'Pz)/CH31, and with analogous alkali metal systems. Strong parallels are found, consistent with a harpoon mechanism dominated by the electron affinity of the target mole cule, but an additional channel is required to account for the inelastic scattering occurring at collision energies below the covalent-ionic threshold.

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