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Reactive scattering of O(3P) atoms with alkyl and allyl iodide molecules

✍ Scribed by R.W.P. White; D.J. Smith; R. Grice

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 429 KB
Volume: 193
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)85666-x

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✦ Synopsis

Differential cross sections have been measured for the reactions of 0 ('P) atoms with C2H,I, ( CH3)2CHI, ( CH3)&I and C3HSI molecules at an initial translational energy Ez 36 kJ mol-' using a supersonic beam of 0 atoms seeded in He buffer gas. The product angular distribution for O+C2HSI shows mild peaking in the forward and backward direction with slightly favours the backward direction, and a product translational energy distribution in accord with the predictions of phase space theory. The propensity toward backward scattering and the fraction of the total available energy disposed into product translation both increase progressively along the series of reactions. This trend is attributed to reaction at small impact parameters b< 2.5 A over a weakly attractive triplet potential energy surface, which splits into 'A' and 'A" Renner-Teller components in bent O-I-R configurations.

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