alexa Abstract | Synthesis, structural characterization and biological activity of transition metal complexes of schiff base ligand-furan derivatives

Journal of Chemical and Pharmaceutical Research
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Abstract

A series of Ti (III), Mn (III), V (III), Fe (III), Co (III), Ru (III), Ru (II), Vo (IV) and Cu (II) complexes have been synthesized from the Schiff base ligand. The Schiff base ligand is derived from 2-furancarboxaldehyde and Ophenylenediamine. The resulting complexes were characterized by elemental analyses, magnetic moment measurement, molar conductance, thermal analyses (TGA), IR, 1H-NMR and solid reflectance. The ligand dissociation, as well as metal ligand stability constants were calculated, pH-metrically at 250C and ionic strength m = 0.1 (IM Nacl). IR spectra show that ligand is coordinated to the metal ions in a tetradenatate manner, with ONNO donor sites of azomethine N and furan O. The molar conductance data reveals that all metal chelates are electrolytes. The electronic spectral data of the complexes displayed the proper transitions and octahedral geometry. The synthesized ligands in comparison to their metal complexes, were also screened for their antibacterial activity against bacterial species, Escherichia coli, pseudomonas aeruginosa and staphyalococcus pyogones. The activity data show the metal complexes to be more potent antibacterials than Schiff base ligand against one or more bacterial species.

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Author(s): Mohd Asif Khan Ruchi Agarwal and Shamim Ahmad

Keywords

Transition metal complexes, 2-furan castoxaldehyde, O-phenylenediamine, Biological activity, schiff base

 
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