高等学校化学学报

高等学校化学学报

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三维金属有机骨架微孔晶体化合物Cd5(BTC)4(H2O)8·6H2O的合成与晶体结构

孙福兴1, 朱广山1, 叶玲2, 方千荣1, 裘式纶1   

    1. 吉林大学化学学院, 无机合成与制备化学国家重点实验室,
    2. 超分子结构与材料教育部重点实验室, 长春 130012
  • 收稿日期:2005-09-27 修回日期:1900-01-01 出版日期:2006-08-10 发布日期:2006-08-10
  • 通讯作者: 裘式纶

Synthesis and Crystal Structure of a 3D Metal-organic Framework Microporous Compound Cd5(BTC)4(H2O)8·6H2O

SUN Fu-Xing1, ZHU Guang-Shan1, YE Ling2, FANG Qian-Rong1, QIU Shi-Lun1   

    1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry;
    2. Key Laboratory for Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
  • Received:2005-09-27 Revised:1900-01-01 Online:2006-08-10 Published:2006-08-10
  • Contact: QIU Shi-Lun

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摘要： 通过改变合成条件合成了最大宽度达到2.6 nm的特殊“Z”字形孔道的新型金属有机骨架微孔晶体化合物Cd5(BTC)4(H2O)8·6H2O, 并通过ICP、元素分析、热重(TGA)和X射线单晶衍射分析对其进行了表征.

关键词: 金属有机骨架, 晶体结构, 微孔化合物

Abstract: The title compound, Cd5(BTC)4(H2O)8·6H2O(BTC=1,3,5-benzenetricarboxylate) was synthesized under mild conditions, and its crystal structure was determined by means of single crystal X-ray diffraction. The compound crystallizes in the monoclinic system and belongs to space group P21/c with a=1.0226(2) nm, b=1.0814(2) nm, c=2.9876(6) nm, β=99.437(3) °, V=3.2591(11) nm3, Z=2, Dc=1.645 g/cm3, Mr=807.23, μ=1.691 mm-1, F(000)=1544, GOF=1.082, R=0.0592, wR=0.1877. Its structure revealed that Cd1 and Cd2 centers are firstly linked with BTC to form wave-like layers, and then the octahedral coordination geometries of Cd3 centers connect the neighboring above layers to construct the 3D framework of Cd5(BTC)4(H2O)8·6H2O having “Z”-like shaped channels with the greatest dimensions about 2.6 nm viewed along the [100] direction.

Key words: Metal-organic framework, Crystal structure, Microporous compound

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