D.M.E. Behaviour of Copper(II)-Glycylglycine and Copper(II)-Giycylglycine-lmidazole Systems

Department of Chemistry, A. P. S. University, Rewa-486 003 Polarographic behaviour of the binary system copper(II)-glygly and ternary systems copper(II)-glygly-lmH (1 : 1: 0.5 and 1: 1 :1) have been studied at d.m.e. The polarographic waves for various species formed have been identified. The imidazolate bridged binuclear copper(II) complex of glygly undergoes one-step reversible reduction suggesting simultaneous two-electron reduction or the two copper centres. If has been proposed that the bridging imidazolate ion accepts the electrons from the d.m.e. and transfers them simultaneously to the two copper centres