高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (6): 1021.

• 研究简报 • 上一篇    下一篇

新型笼状稀土配合物[La2(TCM)2(DMF)6]·2DMF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. 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:2004-10-27 出版日期:2005-06-10 发布日期:2005-06-10
  • 通讯作者: 蔡正洪(1975年出生),男,讲师,主要从事功能配合物研究.E-mail:zhhcai2000@sohu.com E-mail:zhhcai2000@sohu.com
  • 基金资助:

    西南交通大学科技发展基金(批准号:03011032和2004A16)资助.

Synthesis and Structure of a Novel Cage-like Rare Earth Complex [La2(TCM)2(DMF)6]·2DMF

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

  1. 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:2004-10-27 Online:2005-06-10 Published:2005-06-10

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关键词: 多足芳香羧酸, 双核笼状结构, 稀土, 晶体结构

Abstract: A new tripod polyaromatic acid ligand H3TCM(H3TCM=2,4,6-tris1,3,5-trimethylbenzene) and its binuclear rare earth complex ·2DMF were prepared and the structure of complex was characterized by single crystal X-ray diffraction. The complex crystallizes in triclinic crystal system, space group P1 with a=1.123 3(2) nm, b=1.374 1(2) nm, (c=)1.731 8(2) nm, α=78.19(1)°, β=80.02(1)°, γ=80.08(1)°, V=2.550 8(7) nm3, Z=1, (R=)0.035 8, wR=0.080 3. Two TCM ligands that are both in cis, cis, cis-conformations adopt face-to-face orientation and are joined together by two La3+ to a novel binuclear cage-like structure. Two DMF molecules are encapsulated in this cage by coordination. In addition, the other two free DMF molecules are embedded in the channels from the packing of these units along a and b axises.

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

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