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Synthesis spectral, thermal and antimicrobial activity studies of sometransitionmetal complexes derived from3-chloro-N(1E) [2-hydroxy-6-methylquinoline-3yl]methylene)-1-benzo(b)thiophene-2-carbohydrazide

N.Adheer Kumar, B.H.M.Mruthyunjayaswamy

A series of new coordination complexes of CuII, CoII, NiII, MnII ZnII and. Cd II with the Schiff base 3-chloro-N(1E)[2-hydroxy-6-methylquinoline-3- yl]methylene)-1-benzo(b)thiophene-2-carbohydrazide have been synthesized and characterized by elemental analysis, electrical conductivity measurement, IR spectra,. NMR, TGA, XRD data, electronic spectra and magnetic susceptibility measurements. The schiff base behaves as tridentate ONO donor ligand and forms the complexes of the typeML2 stoichiometry.All the complexes are colored and non-electrolytes. It is found that CuII, CoII, NiII, CdII, MnII, and ZnII complex under the present investigation showed octahedral geometry. The ligand and their metal complex have been screened for their antibacterial activity against E.coli. S.aureus and antifungal activity against, A. niger & C. albicans.