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Reaction of methyl radicals with haloalkanes

✍ Scribed by Howard Sidebottom; Jack Treacy

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
530 KB
Volume
16
Category
Article
ISSN
0538-8066

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✦ Synopsis

The kinetics of reactions involving halogen atom abstraction from haloalkanes by methyl radicals have been studied in the gas phase. Arrhenius parameters for halogen atom transfer were determined relative to those for methyl radical combination:

(2)

,,A2(L/rnol . s) E,(kcal/mol) CFC1, CF,CCl, CF,Cl, CF3C1 CF3Br CFJ CF,CF,Cl CH3CHJ 8.3 t-0.2 7.9 ? 0.3 9.1 ? 0.4 8.8 t 0.5 8.3 ? 0.3 8.6 ? 0.2 8.1 t 0.1 8.9 ? 0.3 10.7 t 0.4 9.7 ? 0.6 11.3 2 0.7 11.8 t 1.0 10.9 ? 0.7 9.3 -t 0.5 4.3 2 0.2 7.4 ? 0.6

The rate data obtained are used to provide information on the importance of polar effects for halogen abstraction processes.

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