A comparative analysis of Pseudophase Ion-Exchange (PIE) model and Berezin Pseudophase (BPP) model: analysis of kinetic data for Ionic Micellar-Mediated Semi-Ionic Bimolecular Reaction

Ariffin, A. and Khan, M.N. and Cheong, M.Y. (2007) A comparative analysis of Pseudophase Ion-Exchange (PIE) model and Berezin Pseudophase (BPP) model: analysis of kinetic data for Ionic Micellar-Mediated Semi-Ionic Bimolecular Reaction. Bulletin of the Korean Chemical Society, 28 (7). pp. 1135-1140. ISSN 0253-2964

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Abstract

Pseudo-first-order rate constants (k(obs)) for the reaction of N-benzylphthalimide (NBPT) with HO- have been determined at 2.0 x 10(-4) M NBPT, 1.0 x 10(-3) and 2.0 x 10(-3) M NaOH as well as varying concentrations of cetyltrimethylammonium bromide ([CTABr](T) = 0.0-1.7 x 10(-1) M). The effects of [CTABr](T) - CMC (with CMC representing the critical micelle concentration of CTABr) on k(obs) have been analyzed in terms of Berezin's pseudophase (BPP) model and pseudophase ion-exchange (PIE) model. Although both models give the best observed data fit with least-squares values not significantly different from each other, the calculated values of K-S from BPP model appear to be more reliable compared to those from PIE model because the values of K-S from BPP model are similar to the corresponding K-S values determined spectrophotometrically.

Item Type: Article
Additional Information: Department of Chemistry, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: N-benzylphthalimide; Rate constant; Binding constant; Pseudophase ion-exchange (pie) model; Berezin pseudophase (bpp) model; Valence force catalysis; Phthalimide; Hydrolysis
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Chemistry
Depositing User: Miss Malisa Diana
Date Deposited: 03 Jul 2013 09:13
Last Modified: 03 Jul 2013 09:13
URI: http://eprints.um.edu.my/id/eprint/8051

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