Synthesis and Characterization of Co (II), Ni (II) and Cu (II) Complexes With Ethyl -α- Isonitrosoacetoacetate(HEINA)

Abstract

Ethyl-α-Isonitrosoacetoacetate has been prepared by reacting Ethyl acetoacetate and sodium nitrite. Co (II), Ni (II) and Cu (II) Complexes have been prepared by reacting metal acetate with this ligand Ethyl-αIsonitrosoacetoacetate. All these complexes are dark in colour. They have been characterized by elemental analysis, magnetic measurements and spectral studies. The complexes were found to have composition ML2, where L = Ethyl-α-Isonitrosoacetoacetate and M = Cu (II), Ni (II) and Co (II). On the basis of elemental and spectral studies six coordinated octahedral geometry assign for Co (II), Ni (II) and square plane for Cu (II) complexes. Key-words: Magnetic susceptibility, cobalt, nickel, copper, ethyl-α-isonitrosoacetoacetate