This work contains the preparation of the new ligand )Z -N-(1-
((E)-(4,5-diphenyl-1H-imidazol-2-yl)diazenyl)phenyl)ethylidene)-4Bromoaniline(DPIDBA)via

coupling of diazonium salt of 4-amino
acetophenone with the heterocyclic ring 4,5 diphenyl imidazole in alkaline
alcoholic media as preliminary step , then the yield of the coupling
reaction was refluxed with4-bromo aniline in ethanol , to produce a new
azo-schiff (azo-azomethine) derivative .
In addition, six of chelating complexes of the transition metal divalent
ions (Co, Ni, Cu, Zn, Cd and Hg) were prepared for
this new ligand, after the fixation of the optimum condition
(concentration, pH values and mole ratio percent).
The results indicate that the mole ratio (M: L) are (1:2) for all the
prepared complexes. The preparing ligand (Azo- Schiff ) and its
complexes were identified with the available technique , such (mass
spectroscopy , elementary analysis, Atomic absorption ,UV-Visible
spectroscopy , I.R spectroscopy ,electrical molar conductance and
magnetic susceptibility for the complexes in its solid form .From the
results obtained , octahedral geometry is the predicted geometry for all
chelating complexes