| 三乙四胺六乙酸钆配合物的合成及晶体结构 |
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| 引用本文： | 陈德福,杨维春,王瑞瑶,金天柱.三乙四胺六乙酸钆配合物的合成及晶体结构[J].化学学报,1997,55(7):672-677. |
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| 作者姓名： | 陈德福 杨维春 王瑞瑶 金天柱 |
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| 作者单位： | 北京大学化学系稀土化学研究中心;北京大学稀土材料化学及应用国家重点实验室 |
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| 基金项目： | 国家攀登计划基金资助的课题 |
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| 摘 要： | 在水溶液中合成了三乙四胺六乙酸钆配合物:K4Gd2(HTTHA)2].14H2O的单晶, 并测定了其结构。晶体属单斜晶系, P21/n空间群。晶胞参数: a=1.1266(5)nm,b=2.5686(4)nm, c=2.2076(8)nm, β=102.50(3)°,V=6.237(6)nm^3, Z=4, Dc=1.812g/cm^3。配合物是比核分子,每个钆离子与来自同一个三乙四胺六乙酸的3个氮原子和4个羧基氧原子, 来自另一个三乙四胺六乙酸的2个羧基氧原子配位,形成三冠三角棱柱型配位多面体。
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| 关 键 词： | 晶体结构 钆络合物 ＴＴＨＡＰ |
Synthesis and crystal structure of gasdolinium complex with triethylenetetraaminehexaacetic acid |
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| CHEN DEFU,YANG WEICHUN,WANG RUIYAO,JIN TIANZHU.Synthesis and crystal structure of gasdolinium complex with triethylenetetraaminehexaacetic acid[J].Acta Chimica Sinica,1997,55(7):672-677. |
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| Authors: | CHEN DEFU YANG WEICHUN WANG RUIYAO JIN TIANZHU |
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| Abstract: | The gadolinium complex with triethylenetetraaminehexaacetic acid (abbreviated as H6TTHA), K4Gd2(HTTHA)2].14H2O was synthesized in aqueous solution, and its crystal structure was determined by X-ray diffraction method. The crystal is monoclinic, space group P21/n, with a=1.1266(5)nm, b=2.5686(4)nm, c=2.2076(8)nm, β=102.50(3)°, V=6.237(6)nm^3, Z=4, Dc=1.812g/cm^3. The complex is a binuclear molecule, each gadolinium ion is coordinated by three nitrogen atoms and four carboxyl oxygen atoms from one TTHA, and two carboxyl oxygen atoms from another TTHA, forming a coordination polyhedron of tricapped trigonal prism. |
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| Keywords: | CRYSTAL STRUCTURE GADOLINIUM COMPLEX TTHA P |
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