Micellar effects upon the reaction of hydroxide ion with 2‐phenoxyquinoxaline
- 1 October 1994
- journal article
- research article
- Published by Wiley in International Journal of Chemical Kinetics
- Vol. 26 (10) , 963-972
- https://doi.org/10.1002/kin.550261002
Abstract
Cationic micelles of alkyltrimethylammonium chloride and bromide (alkyl = nC12H25, nC14H29, and nC16H33) catalyze and anionic micelles of sodium dodecyl sulfate inhibit the reaction of hydroxide ion with 2‐phenoxyquinoxaline (1). Inert anions such as chloride, nitrate, mesylate, and n‐butanosulfonate inhibit the reaction in CTABr by competing with OH− at the micellar surface. The overall micellar effects on rate in cationic micelles and dilute electrolyte can be treated quantitatively in terms of the pseudo‐phase ion‐exchange model. The determined second‐order rate constants in the micellar pseudo‐phase are smaller than the second‐order constants in water. © 1994 John Wiley & Sons, Inc.Keywords
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