Abstract
New oxovanadium(IV) mixed-ligand complexes of the general composition [VO(L)(A)], where KHL = potassium salt of salicylideneglycine, A1 = bis(benzylidene)ethylenediamine, A2 = bis (acetophenone)ethylenediamine, A3 = di(2-pyridyl)amine, A4 = bis(benzylidene)-1,8-diaminonaphthalene, A5 = thiophene-o-carboxaldene-aniline, A6 = thiophene-o-carboxaldene-p-anisidine, have been synthesized by the interaction of these ligands with vanadyl sulphate. The mixed-ligand complexes have been characterized on the basis of elemental analysis, magnetic measurements, electronic and infrared spectra. An octahedral structure has tentatively been assigned to all of the mixed-ligand complexes. The mixed-ligand complexes show higher toxic activity against the Salmonella typhi, Escherichia coli and Serratia mercescen as compared to the ligands, vanadyl sulphate and control (dimethyl sulphoxide). The mixed-ligand complexes were also tested against a standard drug (tetracycline).
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