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

Synthetic Inorganic and Metallo-organic Research Laboratory, Department of Chemistry, University of Allahabad, Al\ahabad-211 002, Uttar Pradesh, India E-mail : rajalkoxy@yahoo.com Manuscript received 18 November 2010, revised 29 March 2011, accepted 20 May 2011 Lanthanide complexes of the type [(CI)2Ln(L)(H20)4] (1-3) and [(CI)Ln(L)2(H20)3] (4-6) [where Ln = GdIII, SmIII and YIII , 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, 1H NMR and FAB-MS) data, and magnetic studies; whereas the structural composition of the complex have been determined by FAB-MS spectral studies and X-ray diffraction studies of the complex [(CI)2 Y(L)(H20)4) (3) was found to be 252.054