Synthesis and Characterization of N,N'-Bis(2-hydroxybenzylidene)-2-hydroxyphenymethanediamine and N,N'-Bis-(2-hydroxybenzyl)-2-hydroxyphenylmethanediamine complexes with transition metals

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (6): 794.

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Synthesis and Characterization of N,N'-Bis(2-hydroxybenzylidene)-2-hydroxyphenymethanediamine and N,N'-Bis-(2-hydroxybenzyl)-2-hydroxyphenylmethanediamine complexes with transition metals

WANG Yong-Wei¹, ZHANG Hua-Lin²

1. Shanghai Institute of Materia Medica, Academia Sinica, Shanghai, 200031;
2. Department of Chemstry, Fudan University, Shanghai, 200433

Received:1993-08-05 Revised:1993-12-09 Online:1994-06-24 Published:1994-06-24

Abstract

Abstract: Binuclear and trinuclear complexes of a Schiff base ligand, N, N'-bis(2-hydroxy-benzylidene)-2-hydroxyphenylmethanediamine(SB), with divalent transition metals Ni, Cu and Zn, have been synthesized in THF.Also, the hydrogenated product of the Schiff base ligand(HSB)and its copper complex liave been prepared in ethanol.These complexes were characterized by elemental analysis, thermogravimetric analysis, molar conductance, and UVand IRspectra.Cu₃(SB)₂·1.5THFis a trinulear complex with tetrahedral Cu₁, Cu₂ and square-pyramidal Cu₃ coordination configurations.Ni₂(SB)Ac₂·THFand Zn₂(SB)(Ac)₂·THFare binuclear complexes, each metal ion is coordinated in a square-pyramidal configuration by 1N, 1O of SB, two carboxylate oxygen of acetate and oxygen of THF.Binuclear Cu₂(HSB)(Ac)₂ is similar to Zn(Ni)-SBcomplexes, but metal ions are coordinated in a square-planar configuration.The metal ions in these polynuclear complexes are bridged by ligand SBor HSB.

Key words: Schiff base, Transition metal, Binuclear and trinuclear complex, Synthesis and characterization

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WANG Yong-Wei, ZHANG Hua-Lin. Synthesis and Characterization of N,N'-Bis(2-hydroxybenzylidene)-2-hydroxyphenymethanediamine and N,N'-Bis-(2-hydroxybenzyl)-2-hydroxyphenylmethanediamine complexes with transition metals[J]. Chem. J. Chinese Universities, 1994, 15(6): 794.

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Synthesis and Characterization of N,N'-Bis(2-hydroxybenzylidene)-2-hydroxyphenymethanediamine and N,N'-Bis-(2-hydroxybenzyl)-2-hydroxyphenylmethanediamine complexes with transition metals

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