et.al, N. jawad A.-O. “Synthesis and Characterization of 2-(5-Mercapto-1,3,4- Thiadiazol -2-yl)isoindoline-1,3-Dione (L) and It’s Complexes With Some Transition Metals (Co(II) , Ni(II) , Cu(II) , Zn(II) and Cd(II) )”. Al-Qadisiyah Journal of Pure Science, Vol. 19, no. 4, Aug. 2017, pp. 116-31, https://journalsc.qu.edu.iq/index.php/JOPS/article/view/290.