Synthesis, spectroscopic characterization and biological aspects of Iron(III), Cobalt(III), Manganese(III) and Chromium(III) complexes with Schiff Bases derived from 5-substituted Isatin
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Abstract
A new series of transition metal chelates of Iron (lll), Cobalt (lll), Manganese (lll) and Chromium (lll) have been isolated from Schiff base derived from 5-bromoisatin/5-methylisatin/5-chloroisatin with 2-aminophenol/2-aminothiophenol. Schiff base ligands and metal complexes can be used in preparation of enzymes along with catalytic nature in biological systems and in preparation of dyes. Structural features of ligands and metal chelates were obtained from their elemental analysis, magnetic moment susceptibilities, molar conductance and spectral (UV-Vis, IR and 1H NMR) studies. The obtained data illustrates that these complexes have composition of [M(L)2]Z type and octahedral geometry around central metal ion with O/S/N donor atoms. The ligands are of uninegative tridentate nature. The synthesized trivalent metal complexes appear to be 1:1 electrolyte. In addition, biological studies have been carried out in vitro for investigated compounds.
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