• Synthetic and structural studies of some trivalent lanthanide metal complexes ofo-hydroxyacetophenone (N-benzoyl)glycyl hydrazone

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      https://www.ias.ac.in/article/fulltext/jcsc/101/03/0219-0226

    • Keywords

       

      Lanthanide metal complexes; o-hydroxyacetophenone (N-benzoyl)glycyl hydrazone complexes; hexa-coordinated Ln complexes

    • Abstract

       

      o-Hydroxyacetophenone (N-benzoyl)glycyl hydrazone (o-HABzGH) forms complexes of the types [M(o-HABzGH)Cl2(H2O)2]Cl and [M(o-HABzGH-2H)OH(H2O)2], where M = Y(III), Gd(III), Tb(III) and Dy(III). The complexes have been characterized by elemental analyses, molar conductance, magnetic susceptibility, infrared, electronic,1H NMR and13C NMR spectral techniques. The nephelauxetic ratio (β), covalency (δ), bonding parameter (b1/2) and angular overlap parameter (η) have been calculated from Dy(III) complexes. Infrared and NMR spectral studies show thato-HABzGH acts as a neutral bidentate ligand in the adduct complexes and as a dinegative tridentate one in the neutral complexes. A coordination number of six has been proposed for the metal ion in all the complexes.

    • Author Affiliations

       

      T R Rao1 Genda Singh1

      1. Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi - 221 005, India
    • Dates

       
  • Journal of Chemical Sciences | News

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