Properties of (1,4,7,10,13-penta-azacyclohexadecane)nickel(III) in aqueous solutions: a pulse radiolytic study

Abstract

The oxidation of (1,4,7,10,13-penta-azacyclohexadecane)nickel(II) by OH˙ radicals in aqueous solutions was studied, and the properties of the resulting nickel(III) complex are compared with those of analogous complexes [NiL]³⁺ where L is a tetra-azacyclotetradecane ligand. The difference in the properties is attributed to the fifth nitrogen donor atom which decreases the acidity of the central tervalent nickel.