Voltammetric investigations of 2,2'-azobispyridine zinc(II) and nickel(II) complexes

Abstract

The electrochemical behaviour of 2,2'-Azobispyridine (abpy) has been studied by using voltammetric techniques. From obtained data, electrochemical reaction mechanism of the azo compound has been suggested. At the same time, zinc(II) and nickel(II) complexes of the azo compound have been investigated in different solution media. 50% ethanol-50% KNO<inf>3</inf> (0.1M) medium has been chosen as optimum solution medium. The composition of the zinc(II) and nickel(II) abpy complexes has been determined to be 1:2. The optimum conditions favoring the formation of complexes were studied and their stability constants were determined by using square-wave voltammetric technique. © 2015 The Authors.