Synthesis and Spectroscopic methods on the complexation ofCoII, NiII and CuII

Abstract

 The Ligand was synthesized  by  condensation of Indol 3-hydroxy aldehyde, Glycine and Hydrazine hydrate. The reaction of the ligand  with  ions (Co^II, Ni^II and Cu^II ions) yielded complexes, these compounds were characterized by physical and spectroscopic techniques. The conductivity showed a non-electrolytic nature for these compounds. The  elemental  analysis  indicated  the  ligand  to metal  ratio  as  1:1  with  general molecular  formula M(L)(H₂O)_nCl₂ (L=ligand; M=metal ions. IR data showed the ligand coordinated to the metal ion via azomethine nitrogen and amine of hydrazide in addition to the amine of indol ring with Cu^ΙΙ. The spectral and magnetic studies of the complexes showed that octahedral geometry for Co^ΙΙ and Ni^ΙΙ while for Cu^ΙΙ distorted octahedral geometry. The particle size and strain of these compounds have been discussed using X-ray diffraction. The antioxidant study for ligand proved to be a good antioxidant. The compounds have been evaluated for their antimicrobial activity against various organisms.