Electrochemical behaviour of acyclic and macrocyclic complexes of nickel(II), copper(II) and uranyl(VI)

The electrochemical behaviour of a series of mono-nuclear, homo- and hetero-dinuclear complexes of dioxouranium(VI), nickel(II) and copper(II) ions with acyclic and cyclic compartmental ligands, derived from the condensation of 2,6-diformyl-4-chlorophenol and polyamines of the type NH2?(CH2)2?X?(CH2)2?NH2 (X?NH, S), is reported. The kinetic and thermodynamic aspects governing the electrode mechanism are also discussed with respect to the different ligand designs and their differences in the donor atom sets.