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Effect of Cetylpyridinium chloride on the electron transfer reactions of acetophenones with Ce(IV)
Author(s) -
Panigrahi Ganesh P.,
Sahu Bimal P.
Publication year - 1993
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550250802
Subject(s) - cetylpyridinium chloride , chemistry , micelle , cationic polymerization , chloride , electron transfer , aqueous solution , reaction rate constant , catalysis , inorganic chemistry , kinetics , phase (matter) , pulmonary surfactant , acetic acid , photochemistry , organic chemistry , biochemistry , physics , quantum mechanics
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. © 1993 John Wiley & Sons, Inc.