Synthesis, Characterization and Nematicidal Studies of Cu2+ and Fe2+ Complexes of Schiff Base Derived from 2-Phenylglycinemethylesterhydrochloride and Benzaldehyde

The Schiff base ligand N-diphenylamineacetate (DMA) was prepared by reacting 2- phenylglycinemethylesterhydrochloride and benzyladehyde which was used to synthesize transition metal complexes of Cu (II) and Fe (II). The process was achieved by the use of microwave oven assisted synthesis regulated at 100 OC for 30 minutes. The ligand and complexes were characterized on the basis of physical properties, FTIR, UV, XRD and Magnetic Susceptibility measurements. Results from the FTIR spectra of the ligand and complexes showed complexation with coordination through the nitrogen of the azomethine group. The results from UV and magnetic susceptibility confirmed the probable tetrahedral geometries of Cu (II) and Fe (II) complexes. Cell dimensions of a (4.7Å), b (15Å), c(5Å) , α (90O), β (90O) and γ (90O) for Fe (II) complex are in agreement with orthorhombic crystal system. The complexes were found to be electrolytic in alcohol. The nematicidal activities of the metal complexes shows higher inhibiting potentials compared to the uncomplexed ligand in the root knot nematode Meloidogyne incongnita present in the crop Esculentum spp.