以冠醚为骨架的多足配体稀土配合物的合成、表征及荧光性质研究

Synthesis,Characterization and Luminescent Properties of Rare Earth Complexes with Podand Ligand Using Crown Ether as Skeleton

近年来．设计和合成含有稀土Eu3＋和Tb3＋的金属超分子配合物．并将其应用于发光分子器件和荧光化学探针是超分子化学和生物化学领域研究的热点。酰胺型多足配体具有特有的选择性配位能力，并能够与金属离子形成新颖的配位结构，因而日渐受到人们的关注。以大环为骨架的多足配体具有大环空腔大小和配位原子可调．以及配位末端基可换等优点．

Abstract： A novel podand ligand using crown ether as skeleton and N-benzylsalicylamide as functional arms, 4,5-bi {2＇ ＂methylbenzeneaminoformyl）phenoxyl]methyl}-benzo-12-crown-4 （L）, and its rare earth nitrate complexes have been synthesized. These complexes were characterized by elemental analysis, conductivity measurements and IR spectroscopy. Spectrographic analyses suggest that the complexes show a similar coordination mode. At the same time, the luminescent properties of the Eu（Ⅲ） and Tb（Ⅲ） complexes were also studied.