• Studies on 4f-metal(III) complexes of N-thiophene-2-carboxamidosalicylaldimine

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    • Keywords


      Lanthanide chlorides; N-thiophene-2-carboxamidosalicylaldimine complexes; tridentate ligand; hexa-coordinated lanthanide complexes

    • Abstract


      N-(thiophene-2-carboxamido) salicylaldimine (H2TCS) reacts with lanthanide chlorides in the presence of KOH to give complexes of the type K(Ln(TCS)2] [Ln=La(III), pr(III), Nd(III), Sm(III), Eu(III), Gd(III) and Dy(III)]. A tentative structure for these complexes has been suggested on the basis of molar conductance, TGA and DTA, magnetic susceptibility, electronic, infrared and1H and13C NMR data. The nephelauxetic ratio ($$\bar \beta $$), covalency (σ) and bonding parameter (b1/2) have been calculated from the electronic spectrum of the Nd(III) complex. A coordination number of six around the metal ion has been suggested.

    • Author Affiliations


      B Singh1 P K Singh1 V P Tiwari2

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

  • Journal of Chemical Sciences | News

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