“PREPARATION AND CHARACTERISATION OF FIRST Row TRANSITION METAL COMPLEXES WITH QUADRIDENTATE TRIPODAL LIGAND TREN [TREN=TRIS (2-AMINOETHYL) AMINE] ?”, Pakistan Journal of Scientific & Industrial Research, vol. 43, no. 5, pp. 271–274, Oct. 2000, Accessed: Mar. 10, 2026. [Online]. Available: https://v2.pjsir.org/index.php/biological-sciences/article/view/2048