Preparation and Characterization of New Azo imidazole ligand and Some Transition Metal Complexes

Abstract

New heterocyclic azo dye ligand 2-[1-(2-Hydroxy-5-methyl phenyl)azo]-4,5-
diphenyl imidazole (HMAI), was prepared by reacting a diazonium salt solution of 2-
amino-4-methyl phenol with 4,5-diphenyl imidazole in alkaline pyridine. Six complexes
with Co, Ni, Cu, Zn, Cd, and Hg were prepared and characterized using available
techniques. The analytical data show that the metal to ligand ratio in all complexes is
(1:2).