Studies on Complexes of Schiff Bases Containing Sulfur(Ⅶ) --Gomplexes'of Cobalt with o-Chlorobenzaldehyde and Benzal Acetone Schiff Bases

Abstract

Abstract: The complexes of cobalt with Schiff bases derived from S-benzyldithio-carbazate have been prepared and characterized by elemental analysis, molar conductances, magnetic susceptibility, IRand UV-visible spectrosmetry.Based on these chemical properties examined, we can suggest that o-chloroben-zaldehyde Schiff base (HL₁) forms a diamagnetic complex [Co(L₁)₃] having octahedral structure. Benzal acetone Schiff base (HL₂) forms the dinuclear cobalt (Ⅱ) complexes [CCo₂(HL₂)₂(L₂)₂X₂] (where X=Ac^-or Cl^-) in which the two cobalt atoms are respectively bridged by two Ac^-or Cl^-. These complexes have subnormal magnetic moments, it clearly shows that there is a antiferromagnetic exchange interaction in it. Ligand HL₁and [Co(L₁)₃] has also been screened for bactericidal activity.

Key words: Schiff bases, Cobalt, o-Chlorobenzaldehyde, Benzal acetone

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Yu Baoyuan, Sun Yifang, Fu Benqiu, Dai Huan . Studies on Complexes of Schiff Bases Containing Sulfur(Ⅶ) --Gomplexes'of Cobalt with o-Chlorobenzaldehyde and Benzal Acetone Schiff Bases[J]. Chem. J. Chinese Universities, 1989, 10(1): 17.

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Studies on Complexes of Schiff Bases Containing Sulfur(Ⅶ) --Gomplexes'of Cobalt with o-Chlorobenzaldehyde and Benzal Acetone Schiff Bases

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