ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Kinetics of the Reduction of Tetraaza Macrocyclic Complex Cu(TAAB)2* by Glutathione

J. Labuda, M. Vaníčková, V. V. Pavlishchuk, and A. G. Kolchinskii

department of Analytical Chemistry, Faculty of Chemical Technology, Slovak Technical University, SK-812 37 Bratislava

 

Abstract: The reduction of a copper(II) complex with the macrocyclic ligand tetrabenzo[b,f,j,n]-[1,5,9,13]-tetraazacyclohexadecine by glutathione in aqueous solution has been investigated spectrophotometrically in both anaerobic and aerobic conditions. The reaction rate is first-order with respect to the concentration of reactants. According to the values of activation parameters and the course of spectral change during the reaction, an outer-sphere redox mechanism has been suggested. The copper complex initiates the catalytic oxidation of glutathione by dioxygen. The results are compared with the catalytic effect of Cu(TAAB)2+ at the oxidation of ascorbic acid and hydroxylamine.

Full paper in Portable Document Format: 482a78.pdf

 

Chemical Papers 48 (2) 78–81 (1994)

Tuesday, July 27, 2021

IMPACT FACTOR 2020
2.097
SCImago Journal Rank 2020
0.344
SEARCH
Advanced
VOLUMES
XXVIII. International Conference on Coordination and Bioinorganic Chemistry
© 2021 Chemical Papers