“…1,4,10,11 Model complexes have played an important role in understanding the structural, spectroscopic and catalytic properties of the copper sites in protiens. [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] Various workers have tried to rationalize the catalytic efficiency of the catechol oxidation reaction with variety of parameters like redox potentials, solvent effect, pH of the medium, number and nature of bridging ligands, effect of secondary coordination sphere etc., however our knowledge in this direction is still sketchy and incomplete. 12,13,[17][18][19][20][21][22][23][24][25][26] Therefore, there is need for study of new model complexes showing catecholase activity and exploration of relationship between their structural, spectroscopic and catalytic properties.…”