synthesis and characterization of binuclear zn(ii) complex of n2o2s symmetrical potentially pentadentate schiff base ligand

The reaction of 1-chloro-2-nitrobenzene with 2-aminothiophenol yield the 2-((nitrophenyl)thio)aniline and then 2,2'- thiodianiline of this compound was prepared. then, the symmetrical potentially pentadentate n2o2s schiff base ligand 2,2'- (((thiobis(1,2-phenylene))bis(azanilidene))bis(methenilidene))diphenol (h2l) was obtained by added salicylaldehyde. these compounds have been characterized by ft-ir, 1h nmr and mass spectrometry. binuclear zn(ii) complex of h2l was prepared and structurally characterized by x-ray crystallography. the coordination geometry around zn(ii) is intermediate between trigonal bipyramidal and square pyramidal, τ = 0.54.