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Synthesis and Characteristic Study of Co(II), Ni(II) and Cu(II) Complexes of New Schiff Base Derived from 4-Amino Antipyrine

Salih Hadi Kadhim, Ibtihal Qahtan Abd-Alla and Thikra Jawad Hashim

The complexes of Co(II), Ni(II) and Cu(II) were prepared from the reaction between the new Schiff base derived from the reaction between Salicylaldehyde, p-amino acetophenone and 4-aminoantipyrineto to give the Schiff base: 4-(1-(4-(2-hydroxybenzylideneamino)phenyl) ethylidene amino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one. The identification of the ligand and its complexes were carried out by the techniques: UV-visible, infrared and 1H-NMR spectroscopies, micro elemental analyses of metal ions and carbon, hydrogen, nitrogen, magnetic susceptibility, molar conductivity. The results of this studies show the coordination sites for the ligand with the metal ion were to be through the oxygen of the hydroxyl group and nitrogen of the azomethine (C=N)group. According to the observations, the octahedral geometric structure for the synthesized complexes were suggested.