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). (2013). Baghdad Science Journal, 10(2), 420-431. https://doi.org/10.21123/bsj.2013.10.2.420-431