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ChemInform Abstract: Modelling of Micellar Effects Upon Substitution Reactions with Moderately Concentrated Hydroxide Ion
- Source :
- ChemInform. 20
- Publication Year :
- 1989
- Publisher :
- Wiley, 1989.
-
Abstract
- Cationic micelles of cetyltrimethylammonium chloride and bromide (CTACl and CTABr) speed reactions of 2,4-dinitro-1-naphthyl chloride (DNNC) and p-nitrophenyl diphenyl phosphate (pNPDPP) with OH–. The pseudophase ion-exchange model fits the data for reaction with [OH–] < 0.05 mol dm–3, but the reaction is faster than predicted at higher ratios of [OH–]. The deviations from theory are largest with high ratios of [OH–] to [Cl–] or [Br–] and are larger in CTABr than in CTACl. A mass-action-like model with each anion binding independently to the micelle fits the data for 10–3–0.5 mol dm–3 OH–.
Details
- ISSN :
- 09317597
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- ChemInform
- Accession number :
- edsair.doi...........da1a5c6ec100d5abdbc6c0572320c4a6