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Temperature dependence of the self-decay rate constants of some phenoxyl radicals in aqueous solution

✍ Scribed by Z. B. Alfassi; L. C. T. Shoute

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
728 KB
Volume
25
Category
Article
ISSN
0538-8066

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✦ Synopsis

The Arrhenius parameters of the bimolecular rate constants for the decay of several phenoxyl radicals in aqueous solution were measured. The p-halophenoxyl radicals (F, C1, and Br) decay in a diffusion controlled reaction as the activation energies are the same as that of diffusion of water (16 ? 1.5 kJ . mol-'). The A factors are 10'2.2 ' O.'. For alkyl and alkoxy substituted phenoxyl, slightly higher activation energies were found (19.5 -21.9 kJ . mol-').

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