Syntheses and structural researches of Yb3+ complexes with nitrilotriacetic acids -: Nine-coordinate K3[Yb(nta)2(H2O)] • 5H2O and eight-coordinate Na3[Yb(nta)2] • 6H2O complexes

被引：0
|
作者：
Wang, J [1 ]
Zhang, XD [1 ]
Jia, WG [1 ]
Li, HF [1 ]
机构：
[1] Liaoning Univ, Dept Chem, Shenyang 110036, Peoples R China
来源：
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2003年 / 19卷 / 02期
关键词：
Yb3+ complex; nitrilotriacetic acid; crystal structure;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Yb3+ complexes with two nitrilotriacetic acid molecules were prepared and their compositions were determined as K-3[Yb(nta)(2)(H2O)] . 5H(2)O and Na-3[Yb(nta)(2)] . 6H(2)O by elemental analyses. Their structures were characterized by single-crystal X-ray diffraction analyses. In complex K-3[Yb(nta)(2)(H2O)] . 5H(2)O, the YbN2O7 part forms a nine-coordinate monocapped square antiprismatic structure. In complex Na-3[Yb(nta)(2)] . 6H(2)O, the YbN2O6 part forms an eight-coordinate square antiprismatic structure. It can be seen that the outer cations (K+ and Na+) greatly affect the coordination number and coordinate structure from these results.
引用
收藏
页码：145 / 150
页数：6
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