• Complexes of lanthanide(III) nitrates with 10-(2-dimethylamino-1-methyl) phenothiazine

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      https://www.ias.ac.in/article/fulltext/jcsc/110/06/0527-0534

    • Keywords

       

      Complexes; lanthanides; isopromethazine; synthesis; characterization

    • Abstract

       

      A new series of lanthanide(III) nitrate complexes with 10-(2-dimethylamino-1-methyl) phenothiazine (isopromethazine) having the general formula [Ln(IP)2(NO3)2]NO3, where Ln=La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and IP=isopromethazine have been prepared and characterized by elemental analysis, molar conductance, electronic, infrared, proton NMR spectra, magnetic moments and thermogravimetric studies. Isopromethazine acts as a bidentate ligand, coordinating through heterocyclic nitrogen and tertiary alkyl side chain nitrogen atoms. Two of the nitrate groups are coordinated in a bidentate fashion to the metal ion, while another nitrate ion remains uncoordinated. A coordination number of eight may be assigned to the metal ion in these complexes. The electronic spectra reveal the weak covalent character of the metal-ligand bond.

    • Author Affiliations

       

      B Keshavan1 P G Chandrashekara1

      1. Department of Studies in Chemistry, University of Mysore, Mysore - 570 006, India
    • Dates

       
  • Journal of Chemical Sciences | News

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