Synthesis and characterization of iron (ii) and nickel (ii) schiff base complexes

Abstract

The complexes of iron (II) and nickel (II) with schiff base derived from benzoin and 2-amino benzoic acid have been prepared. Solubility, melting point, decomposition temperature, conductance measurement, infrared (IR) and UV – Visible spectrophotometric studies were used in characterizing the compounds. The melting point of the schiff base determined is 120oC. The decomposition temperatures of iron (II) and nickel (II) complexes are 152oC and 155oC, while the molar conductance values are 11.2 and 10.7 ohm-cm2mol-1, respectively. The UV-Visible spectrophotometric analysis revealed 1:1 (metal-ligand) stoichiometry for the two complexes.

Keywords: Schiff base, conductivity, azomethine, benzoin, spectrophotometry.