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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/100/05/0381-0388

    • Keywords

       

      Salicyl-4-aminoantipyrine; transition metal complexes; antipyrine derivatives; potentiometric studies; IR spectra

    • Abstract

       

      The formation constants of salicyl-4-amino-2,3-dimethyl-1-phenyl-3-pyrazoline-5-one (SAAP) complexes with 3d transition metal ions [Cu(II), Ni(II), Co(II), Zn(II) and Mn(II)] have been determined in 60% ethanol-water medium ofμ = 0.1M (NaCl) at 25°C. It is observed that the formation constants for chelates with 3d transition metals follow the order Mn(II) < Co(II) < Ni(II) < Zn(II) < Cu(II). The effects of metal ions, ionic radii, electronegativities and ionization potentials on chelate formation constants are discussed.

      Complexes of UO2(II) and Pd(II) have been synthesized and characterised by elemental analysis, electrolytic conductance, IR spectra and magnetic measurements. The ligand forms the complexes PdLCl and UO2L2,2H2O, where L is a uninegatively charged tridentate ligand (ONO donor sets).

    • Author Affiliations

       

      Mohamed M Shoukry1 2 Ihsan M Kenawy1 Afkar K Abdel Hadi1 Eman M Shoukry1

      1. Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
      2. Faculty of Science, UAE University, Al-Ain - PO Box 15551, United Arab Emirates
    • Dates

       
  • Journal of Chemical Sciences | News

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