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Dynamics of the reaction O(1D) + HCl → ClO + H from crossed-beam experiments

✍ Scribed by N. Balucani; L. Beneventi; P. Casavecchia; G.G. Volpi

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
623 KB
Volume
180
Category
Article
ISSN
0009-2614

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✦ Synopsis

The angular and velocity distribution of the Cl0 product from the reaction O( 'D) + HCI at 12.2 kcal/mol collision energy has been obtained in a crossed-molecular-beam study. The product center-of-mass angular distribution is found to be almost backward-forward symmetric, with backward scattering being slightly favored, from which it is deduced that part of the reaction occurs via a long-lived complex and part via direct abstraction of the halogen atom. The derived large fraction ( x 43%) of energy released into translation indicates the existence of a barrier in the exit channel. A lower limit of the branching ratio between Cl0 + H and OH +Cl channels is derived and is compared to recent bulk results.

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