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  • Chem Sci Trans., 2013, 2(S1),  pp S25-S32  

    DOI:10.7598/cst2013.3

    Research Article

    Synthesis, Spectroscopic Characterization, Electrochemical and Antimicrobial Studies of Copper(II), Nickel(II), Cobalt(II) and Zinc(II) Complexes Derived from 1-Phenyl-2,3-dimethyl-4(2-iminomethylbenzylidene)-pyrozol-5-(a-imino)-indole-3-propionic Acid

  • THAVUDURAJ KAVITHA, ANTONYSAMY KULANDAISAMY and PONNUSAMY THILLAIARASU
  • Department of Chemistry, Sri Ramasamy Naidu Memorial College, Sattur - 626 203, India
    Department of Chemistry, Raja Doraisingam Government Arts College, Sivagangai-630 561, India
    Department of Chemistry, Kalasalingam University, Krishnankoil - 626 190, India
  • Abstract

    Neutral tridentate N2O complexes of Cu(II), Ni(II), Co(II) and Zn(II) have been synthesized using the 1-phenyl-2,3-dimethyl-4(2-iminomethylbenzylidene)-pyrozol-5-(a -imino)-indole-3-propionic acid (H2L). All the complexes were characterized by elemental analysis, molar conductivity, magnetic susceptibility data, IR, 1H-NMR, UV-Vis, FAB-Mass and EPR spectral studies. The physicochemical studies and spectral data indicate that the ligand acts as a divalent tridentate chelating agent. All the complexes have the general composition [ML2] (M= Cu(II), Ni(II), Co(II) and Zn(II); L = Schiff base). The IR, UV-Vis., magnetic susceptibility measurements and EPR spectral data of the complexes suggest that all the complexes are octahedral geometry. The lower conductivity data confirm the non-electrolytic nature of the complexes. The effect of redox potential on Cu(II) and Ni(II) ions by the ligand environment is studied by cyclic voltammetric measurements. The Schiff base and its metal complexes were utilized to test the in vitro antimicrobial activities, which gave good results in the presence of metal ion than the free ligand environment against the different species of microorganisms.

    Keywords

    Synthesis, Cyclic Voltammeric measurements, Neutral tridentate N2O complexes

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