Synthesis and preparation of open cyclic tetra dentate ligand type NNSS and their metal complexes with di valence cobalte nickel and cupper

Abstract

The open cyclic ligand type NNSS have been prepared through one step. Included the reaction between two equivalent of 3- mercapto propanoic acid and one equnivalent of proplyene di amine . the Co+2, Ni+2 , Cu+2 from there action of the ligand Complexes were prepared with metal ions (1:1) ratio , the prepared compounds were characterized by FT-IR , UV-Vis , HNMR for the ligand and and nichel complexe , 13C- NMR for the ligand , C.H.N spectoscopies, as well as the molar conductivity and magnetic successptibility , Mole ratio was corried out of prepared complexes . These measurements shows cobalt and cupper complexes have distorted octahedral shape , while nichel complex has tetrahedral shape .