Controlling structural topology of metal-organic frameworks with a desymmetric 4-connected ligand through the design of metal-containing nodes
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- 作者：Bin Wang ; Hui Yang ; Ya-Bo Xie ; Yi-Bo Dou ; Min-Jian Zhao ; Jian-Rong Li ; jrli@bjut.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Metal-organic frameworks (MOFs) ; Design and synthesis ; Crystal structure ; Tuned topological network
- 刊名：Chinese Chemical Letters
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：27
- 期：4
- 页码：502-506
- 全文大小：1577 K
文摘
Two new metal-organic frameworks (MOFs), [Cu2(H2O)2(BCPIA)] (BUT-20) and (Me2NH2)[In(BCPIA)] (BUT-21) were designed and synthesized through the solvothermal reaction between a newly created desymmetric 4-connected ligand, 5-(2,6-bis(4-carboxyphenyl)pyridin-4-yl)isophthalic acid (H4BCPIA) and Cu(NO3)2·2.5H2O or In(NO3)3·5H2O, respectively, and characterized by single-crystal and powder X-ray diffraction, thermogravimetric analysis, infrared spectroscopy, and elemental analysis. The two MOFs have three-dimensional structures, in which both the BCPIA4– ligand and metal-containing entities, Cu2(COO)4(H2O)2 and In(COO)4 act as 4-connected nodes. However, different linkage configurations of the two metal-containing nodes, quadrilateral Cu2(COO)4(H2O)2 and tetrahedral In(COO)4, lead to distinct structural networks of BUT-20 and -21, with Nbo and Unc topologies, respectively.