Synthesis and Characterization of Lanthanide Complexes With 2,2′,2″-Nitrilotris(2-N-hydroxymethylformyl)phenoxytriethylamine

A new aryl amide type ligand 2,2′,2″-nitrilotris(2-N-hydroxymethylformyl)phenoxy(trie-)thylamine(L) and a series of lanthanide picrate complexes are synthesized and characterized on the basis of elemental analyses,NMR,electrical conductivity,TG-DTA and IR spectral studies.The results show that all of these complexes have the composition of RE(Pic_3)_3L(RE=La,Pr,Eu,Ho).The thermal properties of these complexes are also discussed.