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Transition metal complexes of heterocyclic Schiff base

Biological activity, spectroscopic and thermal characterization

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Abstract

Metal complexes of Schiff base derived from 2-furancarboxaldehyde and 2-aminobenzoic acid (HL) are reported and characterized based on elemental analyses, IR, 1H NMR, UV-Vis, solid reflectance, magnetic moment, molar conductance and thermal analysis. The ligand dissociation as well as the metal-ligand stability constants have been calculated pH-metrically at 25°C and ionic strength μ=0.1 (1 M NaCl). The complexes are found to have the formulae [M(HL)2](X)n·yH2O (where M=Fe(III) (X=Cl, n=3, y=4), Co(II) (X=Cl, n=y=2), Ni(II) (X=Cl, n=y=2), Cu(II) (X=Cl, n=y=2) and Zn(II) (X=AcO, n=y=2)) and [UO2(L)2]·2H2O. The thermal behaviour of these chelates is studied and the activation thermodynamic parameters are calculated using Coats-Redfern method. The ligand and its metal complexes show a biological activity against some bacterial species.

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Omar, M.M., Mohamed, G.G. & Hindy, A.M.M. Transition metal complexes of heterocyclic Schiff base. J Therm Anal Calorim 86, 315–325 (2006). https://doi.org/10.1007/s10973-006-7095-3

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  • DOI: https://doi.org/10.1007/s10973-006-7095-3

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