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Preparation And Spectral Characterization of New Azo imidazole Ligand 2-[1-(2,4-Dichoro phenyl)Azo]-α-Amino- 1H-imidazole-4-Propionic Acid And Its Complexes With Co(п), Ni(п), Cu(п) ,Pd(II) And Ag(I) Ions | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 11, Issue 2, 2011, Pages 50-64 PDF (0 K) | ||
| Author | ||
| Khalid. J. Al-adely | ||
| Abstract | ||
| The preparation and spectral characterization of complexes for Co(п) Ni (п) Cu(п) Pd(II) and Ag (I) ions with new organic heterocyclic azo dye as ligand 2-[1-(2,4- Dichloro phenyl)Azo ]-α-Amino-1H-imidazole -4-Propionic Acid (DCIPAHs) were prepared by reacting a dizonium salt solution of 2,4-dichloro aniline with L-Histidine in alkaline ethanolic solution. The isolated complexes are found to have the general formula [CoL2Cl2].H2O, [NiL2Cl2], [CuL2Cl2].H2O, [PdLCl2] and [AgL2].NO3 were reacting from azo imidazole ligand and metal chloride (nitrate for Ag (I) in 1:1 molar ratio (metal :ligand) for Pd (II) ion and 1:2 for the rest metal ions. These complexes were characterized spectroscopically by infrared and electronic spectra and along with elemental analysis‚ molar conductance and susceptibility measurements. The data show that the ligand a bidantate and coordinates to the metal ion via the nitrogen atom of azo and with imidazole N3 atom.Octahedral environment is suggested for Co (п) Ni (п) and Cu (п) metal complexes but square planer for Pd (II) complex and tetrahedral forAg (I) complex. | ||
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