Table of Contents
Research Letters in Inorganic Chemistry
Volume 2008, Article ID 786857, 4 pages
http://dx.doi.org/10.1155/2008/786857
Research Letter

Kinetics and Mechanism of Oxidation of Leucine and Alanine by Ag(III) Complex in Alkaline Medium

1Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Hebei Province, Baoding 071002, China
2College of Electronic and Information Engineering, Hebei University, Baoding 071002, China

Received 7 July 2008; Accepted 21 August 2008

Academic Editor: Tai Lau

Copyright © 2008 Changying Song et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Kinetics and mechanism of oxidation of leucine and alanine by Ag(III) complex were studied spectrophotometrically in alkaline medium at constant ion strength. The reaction was in first order with respect to Ag(III) complex and amino acids (leucine, alanine). The second-order rate constant, 𝑘−, decreased with the increasing in [OH−] and [IO4−]. A plausible mechanism was proposed from the kinetics study, and the rate equations derived from mechanism can explain all experimental phenomena. The activation parameters were calculated at 298.2 K.