<i>In situ</i> transformation of a tridentate to a tetradentate unsymmetric Schiff base ligand <i>via</i> deaminative coupling in Ni(<scp>ii</scp>) complexes: crystal structures, magnetic properties and catecholase activity study

Abstract

An N₂O donor reduced Schiff base in presence of Ni(ClO₄)₂·6H₂O and SCN⁻ transforms into N₂O₂ donor ligand <italic>via</italic> deaminative coupling. Metal complexes <bold>1</bold> and <bold>3</bold> exhibit catecholase like activity and antiferromagnetic coupling between the Ni(<sc>ii</sc>) ions.