配合物K2[Y^Ⅲ（dtpa）（H2O）]·7H2O的合成及结构研究  

Study on Synthesis and Crystal Determination of K2[Y^Ⅲ（dtpa）（H2O）]·7H2O Complex

作　　者：马睿[1] 

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110168

出　　处：《辽宁化工》2009年第6期382-383,共2页Liaoning Chemical Industry

摘　　要：介绍了稀土金属离子YⅢ与氨基多羧酸类配体二乙三胺五乙酸(dtpa)形成的配合物的分子结构。配合物K2[YⅢ(dtpa)(H2O)].7H2O中YⅢ与来自同一个二乙三胺五乙酸的3个氮原子和5个羧基氧原子及一个水分子的氧原子配位,配位数为9,形成单帽四方反棱柱体结构。The synthesis and crystal determination of the Y^Ⅲ complex with aminopolycarboxylic acid ligand（dtpa） were introduced. The molecular and crystal structure of the title complex were determined by single - crystal X - ray structure analysis. The results show that Y^Ⅲ ion is coordinated by three nitrogen atoms and five carboxyl oxygen atoms from one dtpa ligand, and one water molecule coordinates with Y^Ⅲ ion, forming a coordination polyhedron of nine - coordinate pseudo - monocapped square antiprism.

关 键 词：YⅢ 二乙三胺五乙酸 配合物 结构 

分 类 号：O614.322[理学—无机化学]