半乳糖醇与氯化稀土配合物的合成及荧光光谱研究

Abstract

测定了半乳糖醇铽配合物的晶体结构 .结果表明 ,糖的羟基和水分子同时与稀土离子配位 ,糖的羟基、水分子及氯离子之间形成广泛的氢键网络 .红外光谱结果表明 ,铕和铽对半乳糖醇具有相同的配位方式 .本文还测定了荧光光谱 ,得到稀土离子的特征光谱

The crystal structure of 2TbCl(3).C6H14O6.14H(2)O was determined. The result shows that the hydroxyl groups of alditol and water molecules coordinate to Tb3+ ion together while the hydroxyl groups of alditol, water molecules and chloride ions form an extensive hydrogen bond network. The FTIR results indicate that galactitol coordinates to Eu3+ and Tb3+ using the same coordination mode. The luminescence spectra of Eu- and Tb-galactitol complexes were also recorded and showed the characteristic emission spectra of the lanthanide ions.