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Coordination Compounds of Heterocyclic Azo Derivatives: Co(II),
Ni(II), and Cu(II) Complexes of someArylazo4,5diphenylimidazole
Derivatives.

Research Authors
M.R. Mahmoud, A.M. Hammam, S.A. El-Gyar and S.A. Ibrahim
Research Abstract

The 3d transition metalion [Co(II), Ni(II) and Cu(II)] complexes of some 4,5-diphenylimidazole azo derivatives have been isolated and characterized by chemical analysis, conductance, electronic and IR spectra. These dyes are characterized by a high tendency towards complex formation with the neutral molecules coordinated to the metal ion as bidentate ligands. The molecular formula of the 1:1 and 1:2 complexes are suggested to be [MLX 2(H2O)2] and [ML 2 X 2] or [ML 2 X 2]·2H2O respectively, whereX=Cl– or NO3. the different bands observed in the visible spectra of methanolic solutions of the complexes have been assigned to the possible electronic transition type (L MCT and d-d). It is suggested that the complexes studied have a distorted octahedral geometry.

Research Department
Research Journal
Monatshefte für Chemie / Chemical Monthly
Research Member
Research Publisher
Springer Wien
Research Rank
2
Research Vol
Vol 117 No. 3
Research Year
1986
Research Pages
pp , 313-325