Template Synthesis and Spectroscopic Characterization of Some Schiff Base Complexes of Transition Metal Ions

Abstract

Schiff bases having biological activities are used as ligands have been synthesized and analyzed. The synthesis of a Schiff base by condensing benzoin with 4-aminophenazone in an ethanolic medium on the addition of divalent and trivalent transition metal ions was investigated. All the metal Schiff base chelates of the formulae [ML(OH)_X(H₂O )_w].nH₂O, in which M represents the divalent transition metal ions of Mn, Ni and Cu and trivalent transition metal ions of Cr and Fe; x = 1 or 2, w = 0, 1 or 2 and n = 0, 5, 6 or 7 have been isolated. These chelates were characterized by elemental analysis, molar conductance measurements, infrared and electronic absorption spectra.