Studies on dinuclear metal complexes of macrocyclic ligands with varying chelate ring size

Abstract Dinuclear Cu (II) , Ni (II) and Co (II) complexes of macrocyclic Schiff-base ligands of 2,6-difornyl-4-methyphenol with α,ω-diamines have been synthesized and characterized. The effect of chelate ring size and saturation of azomethine groups of these ligands on stability, structure and electrochemical properties of the metal complexes has been investigated. Catalytic activity of the metal complexes in the oxidation reaction of 3,5-di-tert-butylcatechnol to 3,5-di-tert-butylquinone by molecular oxygen is reported