Studies on the Metal Complexes with the Tetradentate Schiff Base Ligand

[摘要] The tetradentate schiff base ligand, N,N'-bis(salicylaldehyde)-m-phenylenediimine has been prepared from salicylaldehyde and m-phenylenediamine by Duff-reaction. The schiff base ligand has been reacted with Cu(¥±), Ni(¥±), Co(¥±), and Zn(¥±) to form new complexes; Cu(¥±)[C20H14O2N2]¡¤2H2O, Ni(¥±)[C20H14O2N2]¡¤2H2O, Co(¥±)[C20H14O2N2]¡¤2H2O and Zn(¥±)2[C20H14O2N2]¡¤4H2O. It seems to be that the Cu(¥±), Ni(¥±) and Co(¥±) complexes have hexacoordinated configuration with the schiff base and two molecules of water, while Zn(¥±) complex has tetracoordinated configuration with the schiff base and four molecules of water. The mole ratio of tetradentate schiff base ligand to Cu(¥±), Ni(¥±) and Co(¥±) are 1:1 but to Zn(¥±) is 1:2. These complexes have been identified by visible spectra, infrared spectra, T.G.A. and elemental analysis.

[学科分类] 化学（综合）