Synthesis and spectral studies of Co (Ii)‎,Ni (II)‎,Zn (II)‎ and Cd (II)‎ complexes with ligand 2-[4-carboxy methyl phenyl azo]-4, 5-diphenyl imidazole (4CMeI)‎

Abstract EN

A new chelate complexes of Co(II), Ni(II), Zn(II) and Cd(II) were prepared by reacting these ions with the ligand 2-[4- Carboxy methyl phenyl azo]-4, 5-diphenyl imidazole (4CMeI) The preparation were conducted after fixing the optimum conditions such as (pH) and concentration.

UV- visible spectra of these complex solutions were studied for a range of (pH) and concentration which obey lampert-Beers Law.

The structures of complexes were deduced according to mole ratio method which were obtained from the spectroscopic studies of the complex solutions .The ratios of metal : ligand obtained were (1:2) for all complexes.

(UV-Vis) absorption spectra and the infrared spectra of the chelating complexes were studied, this may indicate that coordination between the metal ions and our ligand takes place.

The conductivity measurements, elemental analysis, the percentage of some metal ions and the measurements of magnetic susceptibility of the complexes were determined, Depending on these results, in addition to, We may conclude that the ligand was bidentate Also the proposed geometrical structures of the complexes of Co(II), Ni(II), Zn(II) and Cd (II) ions are octahedral.