kadhum kareem, Ebtihal, and Mostafa Naji Muhammad salih. 2012. “Synthesis and Spectral Studies of Some Zn(II),Cd(II) and Hg(II) Complexes With the Ligand 2-{4- Bromo Phenyl Azo } -4,5-Diphenyl Imidazole (p-BrPAI)”. Journal of Kufa for Chemical Sciences, no. 4 (April). https://journal.uokufa.edu.iq/index.php/jkcs/article/view/3432.