REDOX BEHAVIOR OF SOME SUPEROXIDE DISMUTASE-MIMETIC COPPER(II) COMPLEXES OF N-SALICYLIDENEAMINOALKANOATE TYPE WITH DIAZOLES

Eight copper(ll) complexes with a tridentate Schiff base and diazoles such as pyrazole, imidazole, and 3,5-dimethylpyrazole have been invest igated voltammetrically at a hanging mercury drop electrode in phospha te buffer of pH 7.4. The complexes undergo a reversible one-electron r eduction followed by the dissociation of the copper(I) compounds at a slow scan rate. The half-wave potential and rate constant data are rep orted and discussed with a superoxide dismutase-like activity of the c omplexes.