Shabaan, Samira, Bahram Letafat, Nasim Esmati, Abbas Shafiee, and Alireza Foroumadi. 2012. “Synthesis and Characterization of 1,10-Phenanthroline-2,9- Dicarbaldehyde-Bis-(thiosemicarbazone)”. Asian Journal of Chemistry 24 (6):2819-20. https://asianpubs.org/index.php/ajchem/article/view/9236.