✦ LIBER ✦

Gas phase reaction kinetics of Cl atoms with ICH2OCH3

✍ Scribed by Kyriakos G. Kambanis; Yannis G. Lazarou; Panos Papagiannakopoulos

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 330 KB
Volume: 261
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(96)01014-7

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✦ Synopsis

The reaction of chlorine atoms with iodomethyl-methyl ether ICH2OCH 3 was studied over the temperature range 273-363 K using the very low pressure reactor technique. The absolute rate constant was measured at various temperatures, and was given by the expression k = (1.53 _+ 0.82) x 10-i i exp[(1.49 _ 0.60 kcal mol-I)/RT] cm 3 molecule-i s-1. The negative temperature dependence of the rate constant suggests that the reaction proceeds via an intermediate adduct, CI-ICH2OCH 3, which further decomposes unimolecularly and yields HCl. Moreover, HC1 may be produced via a direct hydrogen abstraction pathway.

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