Synthesis and structural {IR, 1H NMR, FAB-MS, XRD and magnetic} studies of some lanthanide complexes with salicylidene-2-aminopyridine

Lanthanide complexes of the type [(Cl)(2)Ln(L)(H2O)(4)] (1-3) and [(Cl)Ln(L)(2)(H2O)(3)] (4-6) [where Ln = Gd-III, Sm-III and Y-III, L = Schiff base ligand; salicylidene-2-aminopyridine (sapH)] were synthesized and characterized by various physico-chemical techniques. The complexes were found to be coloured solid and were highly soluble only in DMF and DMSO. These complexes have been characterized by elemental (Ln, C, H, N and Cl) analysis and spectral (IR, H-1 NMR and FAB-MS) data, and magnetic studies; whereas the structural composition of the complex have been determined by FAR-MS spectral studies and X-ray diffraction studies of the complex [(Cl)(2)Y(L)(H2O)(4)] (3) was found to be 252.054 angstrom.