Abstracto

Synthesis, spectral, thermal, XRD and antibacterial studies on metal EDTA hydrazinate complexes

C.Theivarasu, Rangaswamy Murugesan


Five new complexes of Co(II), Ni(II), Zn(II), Cd(II) and UO2(II) with edta hydrazinate ligand have been prepared and characterized by elemental analysis, magnetic measurements, infrared spectra, electronic spectra, X-ray diffraction and thermal analysis. The general formulaeM2(edta)(N2H4)6where M=Co, Ni or Zn and M2(edta)(N2H4)2(H2O)2 where M=Cd or UO2 been assigned for edta hydrazinate complexes. The magnetic moments and electronic spectra indicate that these complexes are of high-spin octahedral variety. IR spectra of the edta complexes indicate that both carboxylate ions and hydrazine molecules coordinate to the metal ions in the bridging fashion. These complexes undergo exothermic decomposition to give the respectivemetal oxide as a final residue. X-ray powder diffraction patterns of the metal edta hydrazinate complexes indicate isomorphism among them. Antibacterial activities of these complexes also been studied.


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