Synthesis and Characterization of some new complexes of Co(II),Ni(II) and

Abstract

AbstractIn this paper the synthesis and characterization of some binuclear complexes of cobalt (II), nickel(Il) andcupper(fl) ions have been reported. These complexes have been prepared by the reaction of metal nitate orchloride of the above transition metals with Schiff base ligand derived from benzil and malonyl hydrazide theprepared complexes have the general formula: [M2(BDM[L)]LI and [Mr(BDM)] for neutral and basic mediumsrespectively. Where M:Co(II), Ni(ll) and Cu(ll) ions, BDMHa:hydrazide ligand, and X: NO3- or Cl' ions. Theligand and its complexes were characterized by elemenlal analysis, molar conductance, magnetic susceptibilitymeasurements, electronic and infiared spectroscopy. The ligand acts as an octadentate to form neutral complexeswith the melal ions under investigation the measurements showed that some of these prepared complexes havean octahedral geometry (neutral medium) and the prepared complexes were in tetrahedral or squar plannerenvironment(basic medium). Powder x-ray diffraction technique was applied for two ofthe prepared complexes,whereas crystal structural information's were obtained crystal symmetry, space group, unit cell, axis, unit cellvolume...etc.