The objective of this study is synthesizing of binary and mixed ligands complexes by reacting Co(II), Ni(II), Cu(II) ions with (E)-3-(2-(5,6-diphenyl-1,2,4-triazin-3-yl)hydrazono)butan-2-one oxime (H2L) in presence and in absence of 8-Hydroxyquinoline ligand. The characterization of complexes are performed by analytical, spectral (IR, mass, UV-Vis, 1H NMR and ESR), magnetic susceptibility, molar c...