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Synthesize characterization and antimicrobial activity study of some transition metal complexes derived from (E)-N-[(6-bromo-2-hydroxy quinoline-3-yl) methylene)]-3-chlorobenzo[b]thiophene-2-carbohydrozide

Author(s): N.Adheer Kumar, B.H.M.Mruthyunjayaswamy

A series of coordination complexes of Cu(II), Co(II), Ni(II), Zn(II),Cd (II),and Hg(II) with the Schiff base, (E)-N-[(6-bromo-2-hydroxyquinoline -3-yl)methylene)]-3-chlorobenzo [b] thiophene-2-carbohydrazide have been synthesized and characterized by elemental analyses, electrical conductance, IR spectra, H1NMR, thermal, electronic spectra, ESR spectra and magnetic susceptibility measurement. The Schiff base behaves as tridentate ONO donor ligand and forms the complexes of the type ML (metal – ligand). All the complex are colored and non-electrolytes. It is found that Cu(II), Co(II), Ni(II), Zn(II), Cd(II) and Hg(II) complexes have exhibited octahedral geometry. The ligand and their metal complexes have been screened for their antimicrobial activity against E.coli and S.aureus. Antifungal activity against, A.niger and C.albicans.

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