XANES Study of Copper (II) Complexes of Aeromatic Amines

X-ray K-absorption spectroscopic studies have been carried out on two copper (II) mixed-ligand complexes .The complexes are: [Cu(L2)2](CH3COO)2 and [Cu2(L3)2(H2O)8](CH3COO)2. The ligand L2=(P-methyl anilino)- P-methoxy phenyl acetonitrile and L3 =(P-methoxy anilino)-P- methoxy phenyl acetonitrile were synthesized. The two ligands were prepared by Strecker's procedure which included the reaction of p-methoxybenzaldehyde with p-toluidine and p-anisidine respectively. XANES spectra have been recorded at the K-edge of Cu using the dispersive beam line at 2.5GeV Indus-2 synchrotron radiation source RRCAT(Raja Ramanna Center for Advance Technology ), Indore, India. Various X-ray absorption parameters e.g., chemical shift, edge-width and shift of the principal absorption maximum have been obtained in the present study. The studies establish significant correlation between various parameters for these complexes. XANES data have been analysed using the computer software Origin 6.0 professional and Athena.