Synthesis and catalytic properties of transition metal complexes with unsymmetrical schiff base
Fengqin Gao
Abstract
Fengqin Gao
Abstract
An unsymmetrical tetradentate Schiff base ligand(H_2L)and its copper(Ⅱ),cobalt(Ⅱ),nickel(Ⅱ)and zinc(Ⅱ)complexes have been synthesized from the reaction of ethylenediamine,acetylacetone and salicylaldehyde and characterized by elemental analysis,molar conductance,IR,UV-VIS and XPS.A four-coordinated enol model is proposed for these complexes.The compostion of newcoordination compounds is MC_(14)H_(16)N_2O_2(M=Cu,Co,Ni,Zn).The catalysis of these complexes to decomposition of hydrogen peroxide has also been studied.
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An unsymmetrical tetradentate Schiff base ligand(H_2L)and its copper(Ⅱ),cobalt(Ⅱ),nickel(Ⅱ)and zinc(Ⅱ)complexes have been synthesized from the reaction of ethylenediamine,acetylacetone and salicylaldehyde and characterized by elemental analysis,molar conductance,IR,UV-VIS and XPS.A four-coordinated enol model is proposed for these complexes.The compostion of newcoordination compounds is MC_(14)H_(16)N_2O_2(M=Cu,Co,Ni,Zn).The catalysis of these complexes to decomposition of hydrogen peroxide has also been studied.
Key concepts: Schiff base, Acetylacetone, Salicylaldehyde, Chemistry, Catalysis, Cobalt, Ethylenediamine, Transition metal