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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/103/06/0725-0733

    • Keywords

       

      Lanthanide complexes; Schiff base complexes; isonicotinic acid hydrazide; hepta coordinated Ln complexes

    • Abstract

       

      Some trivalent lanthanide complexes of acetone isonicotinoylhydrazone (AINH), having the empirical formula Ln(AINH)3Cl3, where Ln=La(III), Pr(III), Nd(III), Sm(III), Eu(III), Gd(III), Tb(III), Dy(III) and Y(III) were prepared. Elemental analyses, molar conductance, magnetic susceptibility, IR, electronic,1H,13C and139La NMR spectra of the complexes have been examined. It has been found that AINH behaves as a neutral bidentate ligand coordinating through the carbonyl oxygen and azomethine nitrogen. Temperature-dependence of the molar absorptivity and the metal coordination number has been established by the electronic spectra of Nd(AINH)3Cl3 recorded over the 28–80°C range.

    • Author Affiliations

       

      Genda Singh1 Madhu R Srivastava1 Pariti S S J Sastry1 T R Rao1

      1. Department of Chemistry, Banaras Hindu University, Varanasi - 221 005, India

    • Dates

       
      Published
      December 1991
      Manuscript received
      16 April 1991
      Manuscript revised
      12 August 1991

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