Synthesis of Ni(II), Co(II), Cu(II) Mixed-ligand Complexes Containing Amino Acid (Cysteine) and 1,10-phenanthrolin

A new three mixed-ligand complexes of some transition metal ions Co(II), Ni(II), Cu(II) with Cysteine (Cys) as a primary Ligand and 1,10- phenanthroline (phen) as a secondary ligands have been prepared by the formulas M(Cys)2(phen), M= Co(II), Ni(II), Cu (II), Cys= (C3H7NO2S), (C12H8N2) =(phen). All the prepared complexes have been described by The UV-Visible Spectroscopy and Magnetic measurements (mimetic study) and the molar conductance values reveal that the all complexes are non-electrolytes since the complexes assume octahedral geometry in which the Co(II), Ni(II), Cu(II) have two molecules of Cysteine and one molecule from 1,10-phenanthroline in the coordination sphere.