Electrochemical behavior of complexes of copper(II) with 14-membered saturated tetraaza macrocycles

The electrochem. behavior of the complexes of Cu(II) with the macrocycles I (n ≠ m = 1,2) and II was studied. Both anodic and cathodic electrode processes involve complicated mechanisms; the E1/2 values for the couples [CuL]3+-[CuL]2+ and [CuL]2+-[CuL]+ (L = macrocycle) were detd. by cyclic voltammetry at high potential scan rates. Redn. and oxidn. mechanisms were studied, and the half-life of the anodically electrogenerated species [CuL]3+ was detd.