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Yttrium and lanthanide nitrate complexes of N,N1-bis(4-antipyrylmethylidene)ethylenediamine

  • Siby Joseph
  • P K Radhakrishnan
Inorganic And Analytical
  • 31 Downloads

Abstract

Complexes of yttrium and lanthanide nitrates with a Schiff base, N,N1-bis(4-antipyrylmethylidene)ethylenediamine (BAME) having the general formula [Ln(BAME)2(NO3)](NO3)2, where Ln=Y, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho and Er have been synthesised and characterised by elemental analyses, molar conductance in non-aqueous solvents, electronic, infrared and proton NMR spectra. BAME acts as a neutral bidentate ligand coordinating through both azomethine nitrogen atoms. One of the nitrate groups is coordinated in a bidentate manner. A coordination number of six may be assigned to the metal ion in these complexes. The covalency parameters evaluated from the solid state electronic spectra suggest weak covalent character of the metal-ligand bond.

Keywords

Schiff base lanthanides yttrium complexes N,N1-bis(4-antipyrylmethylidene)ethylenediamine 

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Copyright information

© the Indian Academy of Sciences 1998

Authors and Affiliations

  • Siby Joseph
    • 1
  • P K Radhakrishnan
    • 1
  1. 1.School of Chemical SciencesMahatma Gandhi University, KottayamKeralaIndia

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