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Effect of Cetylpyridinium chloride on the electron transfer reactions of acetophenones with Ce(IV)

✍ Scribed by Ganesh P. Panigrahi; Bimal P. Sahu

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

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✦ Synopsis

The kinetics of electron transfer reactions between acetophenones with Ce(IV) have been studied in aqueous acetic acid medium in the presence of cationic micelle Cetylpyridinium chloride (CPyCl) at different temperatures. Kinetic data reveal first-order dependence with respect to each of Ce(IV) and acetophenones. The cationic micelle, Cetylpyridinium chloride enhances the oxidation reactions. The catalysis fits to a model developed by Menger and Portnoy as well as Berezin's phase separation model. The binding and partition constants and the transfer free energy from water to micelle have been estimated and discussed, suggesting that the solubilization of both the reactants in the micellar phase, facilitates the oxidation. 0 1993

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