Kinetics of oxidation of diglycine by bromamine- B in perchloric acid Medium

Iyengar, T. A. and Mahadevappa, D. S. (1992) Kinetics of oxidation of diglycine by bromamine- B in perchloric acid Medium. Indian Journal of Chemistry Section a-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry, 31 (10). pp. 752-755. ISSN 0975-0975

Text Kinetics of oxidation of glycylglycine by bromamine-T in acid medium.pdf Restricted to Registered users only Download (367kB) | Request a copy

Abstract

Kinetics of oxidation of a typical dipeptide glycylglycine (GG) by bromamine-B (BAB) has been studied in perchloric acid medium at 40-degrees-C. The rate shows first order dependence in BAB]0 and fractional order in GG]0 which tends to zero order when H+] = 0.04 mol dm-3. The reaction is almost independent of H+] (when H+] < 0.03 mol dm-3) and inverse fractional in H+](H+] = 0.03-0.08 mol dm-3). Other effects, like addition of halide ions, benzenesulphonamide, and variation in ionic strength and dielectric constant of medium have also been studied. A solvent isotope effect, k(H2O)'/k(D2O)' = 1.52 is observed. Proton-inventory studies in H2O - D2O mixtures have been made. The reaction has been studied at different temperatures and a mechanism conforming to the kinetic observations is suggested.

Item Type:	Article
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	Users 23 not found.
Date Deposited:	16 May 2021 05:47
Last Modified:	07 Jan 2023 05:57
URI:	http://eprints.uni-mysore.ac.in/id/eprint/16416

Actions (login required)

View Item