高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (2): 176.

• 论文 • 上一篇    下一篇

三乙四胺六乙酸钆单核配合物的合成及晶体结构

王瑞瑶1, 张华杰1, 金天柱1, 周忠远2, 周向革2   

  1. 1. 北京大学稀土材料化学及应用国家重点实验室, 北京 100871;
    2. 中国科学院成都分院有机化学研究所
  • 收稿日期:1997-12-30 出版日期:1999-02-24 发布日期:1999-02-24
  • 通讯作者: 金天柱
  • 基金资助:

    国家“八五”攀登计划(稀土科学基础研究)资助

Synthesis and Crystal Structure of Gadolinium Mononuclear Complex with Triethylenetetraaminehexaacetic Acid

WANG Rui-Yiao1, ZHANG Hua-Jie1, JIN Tian-Zhu1, ZHOU Zhong-Yuan2, ZHOU Xiang-Ge2   

  1. 1. State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing, 100871;
    2. Chengdu Institute of Organc C hemistry, Chinese A cademy of Sciences, Chengdu, 610041
  • Received:1997-12-30 Online:1999-02-24 Published:1999-02-24

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被引次数

14

摘要： 在水溶液中合成了三乙四胺六乙酸(H6ttha)钆单核配合物(NH4)2[Gd(Httha)]·6H2O,获得了单晶,并测定了其结构.晶体属单斜晶系,P21/c空间群.晶胞参数a=1.0400(4)nm,b=1.2761(4)nm,c=2.3132(4)nm,β=90.89(3)°,V=3.070(2)nm3,Z=4,Dc=1.709g/cm3.R1=0.0394,F(000)=1612.配合物是单核分子,每个钆离子与来自同一个三乙四胺六乙酸的4个氮原子和5个羧基氧原子配位,配位数为9,形成单帽四方反棱柱型配位多面体.

关键词: 钆配合物, 三乙四胺六乙酸, 晶体结构

Abstract: The gadolinium complex with triethylenetetraaminehexaacetic acid (abbreviated as H-6ttha), (NH4)2[Gd(Httha)]·6H2O was synthesized in aqueous solution, and its crystal structure was determined by X-ray fourcycle diffraction method. The crystaLIs monoclinic, space group P21/c, with a=1.0400(4) nm, b=1.2761(4) nm, c=2.3132(4) nm, β=90.89(3), V=3.070(2) nm3, Z=4, Dc=1.709 g/cm3. The complex was a mononuclear molecule, each gadolinium ion is coordinated by four nitrogen atoms and five carboxyl oxygen atoms from one Httha, forming a coordination polyhedron of mono capped square antiprism.

Key words: Gadolinium complex, Triethylenetetraaminehexaacetic acid, Crystal structure

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