Copper(II) complexes of (salicylidene)amino acid schiff bases as models: Peroxidase and catalase

Abstract

Activity of copper(II) complexes of (salicylidene)amino acid Schiff bases have been tested towards the decomposition of hydrogen peroxide at 40° and over a wide range of <em>p</em>H 6.0-11.0. Detailed kinetic investigations for the disproportionation of hydrogen peroxide catalysed by the complexes of the general formula, Cu[(sal:aa)H₂O] nH₂O (where sal:aa = salicylideneamino acid schiff base derived from the condensation of salicylaldehyde and glycine/<img src='http://www.niscair.res.in/jinfo/small.gif' border=0>– valine/<img src='http://www.niscair.res.in/jinfo/small.gif' border=0>-methionine; n =0 or 2) at 40°C and at <em>p</em>H 9.0 are discussed. The decomposition of hydrogen peroxide catalysed by the above complexes conforms to Michaelis-Menten type kinetics.