Mixed Ligand Chelates of Transition Metal Ions with [(1-Phenyl-3-methyl-5-oxodihydropyrazol-4- yl)phenylimino]-2´,3´-dimethylaniline as a Primary Ligand and 2-Hydroxy-1-naphthaldehyde as a Secondary Ligand

Abstract

Binary and ternary complexes of the type M-Y and M-XY [M = Cu(II), Zn(II), Mn(II), Ni(II), Co(II), X = [1-Phenyl- 3-methyl-5-hydroxopyrazol-4-yl)phenylimino]-2',3'- dimethyl-aniline, Y = 2-hydroxy-1-naphthaldehyde have been examined pH metrically at 29 ºC and μ = 0.1 M (KCl) in a (75:25) % (v/v) dioxane-water medium. The values of formation constants for M-Y and M-X-Y systems [M = Cu(II), Zn(II), Ni(II), Co(II), Mn(II)] are calculated.