• Transition metal complexes obtained from an ionic liquid-supported Schiff base: synthesis, physicochemical characterization and exploration of antimicrobial activities

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    • Keywords


      Ionic liquid; Schiff base; transition metal complexes; antimicrobial studies.

    • Abstract


      An ionic liquid-supported Schiff base 1-{2-(2-hydroxy-5-chlorobenzylamine) ethyl}-3-methy limidazolium tetrafluoroborate and its Co(II), Ni(II), Cu(II), Mn(III), Fe(III) and Cr(III) complexes were synthesized and characterized by various analytical (elemental analysis, molar conductance and magnetic susceptibility measurements) and spectroscopic (PXRD, SEM, ESI-MS, UV-Visible, FT-IR, 1H NMR and 13C-NMR) methods. Based on these spectral data and spectra, tetra coordinated and hexacoordinated geometries were assigned for the synthesized metal complexes. Molar conductance of the complexes showed their (1:2) electrolytic nature. The Schiff base ligand and its complexes were screened for in vitro antimicrobial activities against some naturally available gram positive and gram negative bacteria to assess their inhibition potentials. Maximum inhibition zone was produced by the Cu(II) complex (5a) in plates of Klebsiella pneumoniae while the minimum inhibition zone was produced by in plates of Bacillus cereus.

    • Author Affiliations



      1. Department of Chemistry, University of North Bengal, Darjeeling, West Bengal 734 013, India
      2. Department of Chemistry, Kalimpong College, Kalimpong, West Bengal 734 301, India
      3. Department of Tea Science, University of North Bengal, Darjeeling, West Bengal 734 013, India
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    • Supplementary Material

  • Journal of Chemical Sciences | News

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