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

Catalytic effect of Cu(TAAB)²⁺ on ascorbic acid dioxygen oxidation

J. Labuda, J. Mocák, E. Hlavačková, and K. B Yatsimirskii

Department of Analytical Chemistry, Slovak Technical University, CS-812 37 Bratislava

Abstract: Polarographic and spectrophotometric study has been made of the kinetics of ascorbic acid dioxygen oxidation catalyzed by copper complex with a tetrabenzo(b,f,j,n)(l,5,9,13)tetraazacyclohexadecine (TAAB) macrocyclic ligand. A chain radical mechanism has been suggested assuming Cu(TAAB)²⁺ reduction by ascorbic acid to be a rate-determining step and a fast Cu(TAAB)²⁺ reoxidation process.

Full paper in Portable Document Format: 386a739.pdf

Chemical Papers 38 (6) 739–748 (1984)