Synthesis, characterization and antibacterial investigation of divalent metal complexes of NO-donor ligand: {5-chloro-2-[(4-chlorobenzylidene)-amino]phenyl}(phenyl)methanone

Abstract A ligand L has been synthesized by the condensation of 4-chlorobenzaldehyde and 2-amino-5-chlorobenzophenone. The complexes 1 – 5 of Pb +2 , Ni +2 , Co +2 , Cu +2 and Cd +2 with ligand were prepared. The newly synthesized ligand L and its complexes 1 – 5 were characterized on the basis of elemental analyses, molar conductance, 1 H NMR, IR and MS spectral data. The ligand was also characterized by X-ray crystallography. By electronic spectra and magnetic moment data, the square planar geometry for complex 1 and the octahedral geometry for complexes 2 – 5 were proposed. The conductivity data suggests non-electrolytic nature of the complexes 1 – 5 . The complexes have higher antibacterial activity than the parent ligand L .