Synthesis, Spectroscopic, and Structural Elucidation of Mixed-Ligand Coordination Complexes of Divalent and Trivalent Transition Metal Ions. IJESR [Internet]. 2011 Apr. 27 [cited 2025 Dec. 12];1(2):1-10. Available from: https://ijesr.org/index.php/ijesr/article/view/1385