Complexes of Mn(II), Fe(II), Co(II), Ni(II) and Cu(II) with cytosiniumion

Abstract

Two series of complexes of the type [ML₂Cl₂]Cl₂ and [ML₄Cl₂]Cl₄ (where M=Mn(II), Fe(II), Co(II), Ni(II), CU(II) and L= cytosinium ion) have been prepared and characterised by elemental analyses, thermogravimetric studies, magnetic moment measurements, electronic and infrared spectral studies.The electronic spectra and magnetic moment values of the complexes of the type [ML₂Cl₂]Cl₂ indicate that Fe(II), Co(II), Ni(II) complexes possess tetrahedral structure whereas CU(II) complex is square planar; complexes of the type [ML₄Cl₂]Cl₄have the octahedral geometry. Infrared spectral studies indicate that in all the complexes cytosinium ion acts as a monodentate ligand coordinating through oxo oxygen.