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  • Chem Sci Trans., 2017, 6(3),  pp 457-465  

    DOI:10.7598/cst2017.1354

    Research Article

    Studies of Fe(II), Mn(II), Cr(II), Ni(II), Co(II) and Cu(II) Complexes with Schiff Base Derived from 2-Amino-4,6-dimethylbenzothiazole and Pyridine-2-aldehyde

  • V.G. DESHPANDE and SEEMA I HABIB*
  • Department of Chemistry, G. M. Momin Women?s College, Bhiwandi, Maharashtra, India
  • Abstract

    As it is proved that the transition metal complexes have drug activities, hence we have synthesized heterocyclic Schiff bases. Six complexes of Co(II), Ni(II), Fe(III), Mn(II), Cr(II) and Cu(II) Schiff bases have been prepared. All ligands and its metal complexes the structures of the complexes have been proposed by analytical data, conductivity measurement, magnetic moment, IR, 1H NMR spectra and thermal studies. Analytical data confirmed 1:2 (metal:ligand) stoichiometry and the spectral data suggest that all Fe(III), Mn(II), Cr(II), Ni(II) and Co(II) complexes have octahedral geometry where as the Cu(II) metal complex shows the square planar geometry. The molar conductance values of metal complexes suggest their non electrolytic nature. The IR spectral data reveals that the ligand behaves as bidentate with ON donor atoms sequence towards central metal ion. Antibacterial and antifungal activities of ligands and its metal complexes were performed in vitro against E.coli, S. typhi, S. aureus, B. subtilis and against various fungi like P.chrysogenum, A. niger, F. moniliformae and A.Flavus. The complexes show more activity compare to the ligand.

    Keywords

    Substituted benzothiazole Schiff bases, Transition metal complexes, Spectral analysis, Antimicrobial activity

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