高等学校化学学报

高等学校化学学报

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[Eu2(TCM)2(DMSO)6]·2DMSO双核笼状稀土配合物的合成与结构

蔡正洪1, 唐静1, 唐瑜2, 谭民裕2, 郁开北3   

    1. 西南交通大学药学院, 峨眉 614202;
    2. 兰州大学化学化工学院, 兰州 730000;
    3. 中国科学院成都分院分析测试中心, 成都 610041
  • 收稿日期:2007-03-22 修回日期:1900-01-01 出版日期:2007-10-10 发布日期:2007-10-10
  • 通讯作者: 蔡正洪

Synthesis and Structure of Binuclear Cage-like Rare Earth Complex [Eu2(TCM)2(DMSO)6]·2DMSO

CAI Zheng-Hong1*, TANG Jing1, TANG Yu2, TAN Min-Yu2, YU Kai-Bei3   

    1. School of Pharmacy, Southwest Jiaotong University, Emei 614202, China;
    2. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China;
    3. Analysis Center, Chengdu Branch of Chinese Academy of Sciences, Chengdu 610041, China
  • Received:2007-03-22 Revised:1900-01-01 Online:2007-10-10 Published:2007-10-10
  • Contact: CAI Zheng-Hong

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摘要： 报道一个H3TCM配体在较小尺寸的溶剂DMSO中与稀土离子Eu3+通过自组装形成的双核笼状结构, 从中可进一步看出溶剂分子的尺寸对该双核结构的影响.

关键词: 稀土配合物, 双核笼状结构, 晶体结构

Abstract: A new binuclear cage-like complex, [Eu2(TCM)2(DMSO)6]·2DMSO, was synthesized via the reaction of H3TCM(H3TCM={2,4,6-tris[(2-carboxyphenoxy)methyl]-1,3,5-trimethylbenzene}) and Eu3+. Single crystal X-ray diffraction study reveals a centro symmetric binuclear neutral entity, space group P21/c with a=1.5188(2) nm, b=1.7135(3) nm, c=1.7578(2) nm, β=95.34(2)°, V=4.5549(9) nm3, Z=4. In the complex, Eu3+ metal centers are bridged together by mono- and bidentate carboxylate groups from two ligands. The most interesting fact is that the size of solvent molecules has a great influence on the binuclear cage-like complex in the shape of binuclear cage, the coordination mode of carboxylate group and the coordination number of Eu3+.

Key words: Rare earth complex, Binuclear cage-like structure, Crystal structure

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