V.j.t Raju

Metal Complexes of a New Tripodal Multidentate Ligand: Structural Investigation on Ni (Ii) and Zn (Ii) Complexes V.j.t Raju

Metal complexes are species consisting of metal coordinated with one or more ligands, they are important in catalysis, materials synthesis, photochemistry, biological Systems and so on . Moreover these metal complexes display diverse chemical, optical and magnetic properties which are significant for different applications. This monograph contains an attempt has been made to synthesize a new tipodal multidentae ligand containing S-Triazine function capable of holding metal ions through possible coordination center with alternative path of preparation and to search metal ions which are capable of coordinated in these available sites. Based on the analytical, spectral (i.e NMR, IR, UV), magnetic susceptibility and conductance data it is proposed that the ligand employs one or more ONN sequence in metal binding process. Precisely, the Ni(II) complex involves bonding through one ONN sequence and the Zn(II) complex has bonding through three such sequences. As such TSHSTZ behaves as a dibasic ONN donor towards Ni(II) and tri basic tris-ONN donor towards Zn(II) with the preference of Octahedral and Tetrahedral geometries respectively.