Synthesis and Characterization of Tetradentate Complexes Type N2O2 From the Reaction of 2-Hydroxy -1, 2-Diphynel-Ethanone Oxime [H2L] With Mn II, Fe II, Co II, Ni II, Cu II and Hg II Ions. IHJPAS. 2017;22(3). Accessed May 19, 2024. https://jih.uobaghdad.edu.iq/index.php/j/article/view/1187