Synthesis and Spectroscopic Investigation of Novel Nickel(II) Complexes from Pentadentate Schiff Base Ligand

The coordination chemistry of dinucleating ligands is currently an area of great activity. One reason for this is the facile synthesis of dinuclear species toward model compounds of metallo-enzymes. On the other hand, these multidentate ligands might be useful as building blocks for high-nuclearity compounds. Three different para substituted dinuclear nickel(II) complexes [Ni 2 L(O 2 CC 6 H 4 -p-X)] [ X= NO 2 (1), Cl(2),OCH 3 (3) ] were synthesized by the reaction of corresponding precursor with pentadentate Schiff base ligand. The ligand was characterized by UV-Visible, FTIR, NMR studies. The synthesized complexes were characterized by molar conductance, UV-Visible, FTIR, LCMS spectral studies.