Synthesis and Characterization of Schiff Base from 3, 5-Di Chloro Salicylaldehyde with 4-Bromoaniline and 4-Aminobenzoic Acid and Its 1st Row Transition Metal Complexes

Abstract

Metal complexes have been prepared by using the schiff base ligand of 3,5-dichloro salicylaldimino-4-bromoaniline and 3,5-dichloro salicylaldimino-4-amino  benzoic acid have been prepared and characterized by elemental analysis, magnetic and spectroscopic measurements (infrared, X-ray powder diffraction and scanning electron microscopy). Elemental analysis of the metal complexes was suggested that the stoichiometry is 1:2 metal-Ligand ratio. The following first row transition metals are used in our study, namely Co(II), Cu(II), Mn(II) and Zn(II). The coordination of metals was identified by Fourier transform infrared spectroscopy. The geometry of complexes was detected by the electronic spectroscopy. The proposed geometry for L₁and L₂ of Zn complexes are distorted octahedral and tetrahedral geometry, but L₁and L₂ of Mn complexes are octahedral geometry, L₁ of Cu and L₂ of Co complexes are tetrahedral geometry.