Kinetics and mechanism of ruthenium(III) catalysed oxidation of phenyl acetic acid by sodium-N-chlorobenzene sulphonamide (chloramine-B) in acid solution

Kondarasaiah, M. H. and Ananda, S. (2002) Kinetics and mechanism of ruthenium(III) catalysed oxidation of phenyl acetic acid by sodium-N-chlorobenzene sulphonamide (chloramine-B) in acid solution. Asian Journal of Chemistry, 14 (2). pp. 657-665. ISSN 0970-7077

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Abstract

The kinetics of oxidation of phenyl acetic acid by chloramine-B (CAB) has been studied in hydrochloric acid solution at 303 K. In the absence of Ru(III) the rate shows a first order dependence on [CAB], independent with respect to [substrate] and first order dependence on [H+]. In presence of Ru(III), the rate is first order with respect to [CAB], independent with respect to [substrate], first orderdependence on [H+] and fractional order dependence on [Ru(III)).The variation of the ionic strength, dielectric constant of the medium and addition of chloride ion, the reaction product of CAB (benzenesulphonamide) do not have significant effect on the reaction rate.The rate of oxidation of phenyl acetic acid by CAB has been studiedfor various concentrations of [Ru(III)] at different temperatures and the catalytic constants have been calculated. Activation parameters have been evaluated from Arrhenius plot. A mechanism consistent with experimental results has been proposed.

Item Type: Article
Subjects: C Chemical Science > Chemistry
Divisions: Department of > Chemistry
Depositing User: manjula User
Date Deposited: 30 Sep 2019 07:35
Last Modified: 11 Dec 2019 06:27
URI: http://eprints.uni-mysore.ac.in/id/eprint/8637

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