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  • Chem Sci Trans., 2013, 2(4),  pp 1222-1231  

    DOI:10.7598/cst2013.591

    Research Article

    Synthesis and Spectroscopic Characterization of Some Novel Polypyridine and Phenanthroline Complexes of Mn(II), Fe(II), Co(II) and Zn(II) Incorporating a Bidentate Benzothiazolyl Hydrazone Ligand

  • SHAIKH KHALED, SHAIKH KABEER AHMED and MOHAMMED ZAMIR AHMED
  • Organic Chemistry Research Laboratory, Yeshwant Mahavidyalaya, Nanded- 431602, India
    P.G. Department of Chemistry, Sir Sayyed College, Aurangabad- 431001, India
  • Abstract

    Eight novel polypyridine and phenanthroline complexes of Mn(II), Fe(II), Co(II) and Zn(II) (18) of the type [M(NN)2(L)]Cl2 where NN is 2,2'-bipyridine (bpy)2 and 1,10-phenanthroline (phen)2 with three benzothiazolyl hydrazone ligands L1L3 were synthesized and characterized by elemental analysis, thermal conductance, UVVis, IR, 1H NMR, electronic absorption and emission spectral methods. The IR, 1H NMR, electronic absorption and emission spectral data revealed that the ligands coordinate with the metal ions in a bidentate fashion through azomethine nitrogen and phenolic oxygen to form complexes. The analytical and thermogravimetrical data correlated with the observations from IR, 1H NMR, electronic absorption and emission spectra permitted to attribute that the metal ions are six coordinated in all the complexes.

    Keywords

    Benzothiazolyl hydrazone, Polypyridine, Phenanthroline complexes

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