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

Voltammetric and chemical behavior of tetraazamacrocyclic complex Cu(TAAB)²⁺ adsorbed on the surface of the graphite electrode

J. Labuda and V. Plaskoň

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

Abstract: The redox properties of copper(H) complex with tetrabenzo[b,f,j, n] [l,5,9,13]tetraazacyclohexadecine attached to the surface of the graphite electrode have been investigated. The adsorption of the complex is characterized by the Langmuir isotherm. The quasi-reversible character of redox process (α=0.42, k_s = 5 s^-1) was confirmed by the cyclic voltammetry. The catalysis of oxygen cathodic reduction as well as the inhibition of anodic oxidation of ascorbic acid were found. The influence of redox reactions with persulfate and ascorbic acid on the origin of catalytic currents was studied.

Full paper in Portable Document Format: 424a489.pdf

Chemical Papers 42 (4) 489–497 (1988)