XPS study of metal complexes with an unsymmetrical tridentate Schiff base
作者:Zhou Lixin、Wang Bo、Yang Shiyan、Jin Daosen
DOI:10.1016/s0277-5387(00)87070-9
日期:1993.7
Complexes of 14 lanthanide metals with the new tridentate Schiff base derived from salicylaldehyde and furfuraldehyde with o-phenyldiamine (HL) have been prepared and studied using X-ray photoelectron spectroscopy (XPS). The nitrogen Is peak for all the complexes is symmetrical relative to the two asymmetric peaks of the ligand. This behaviour suggests that a coordination conjugation of four equatorial nitrogens occurs, the complexes are in an octahedral structure and the nitrogen Is electron BE increases from La to Lu in accordance with the ''Four Subgroup Effect''.