A new ligand containing a pyridine,a 2,2'-Bipyridine and a carboxylate moiety and its lanthanide polymeric complexes:synthesis,characterization and photophysical studies

摘要

The synthesis,characterization and photophysical properties of soluble polymeric complexes obtained from a new ligand 1 and its Eu(III),Tb(III)and Gd(III)ions,is described.The ~1H NMR,FTIR,absorption and excitation spectra reveals chelation of the metal with the ligand via a carboxylate and excludes the pyridinics moieties coordination.