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Synthesis and Characterization of a Water-stable Metal-organic Framework Based on Mixed Ligands

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【作者】 张磊吴小园卢灿忠陈文哲

【Author】 ZHANG Lei;WU Xiao-Yuan;LU Can-Zhong;CHEN Wen-Zhe;College of Materials Science and Engineering,Fuzhou University;Key Laboratory of Design and Assembly of Functional Nanostructures,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences;

【机构】 College of Materials Science and Engineering,Fuzhou UniversityKey Laboratory of Design and Assembly of Functional Nanostructures,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences

【摘要】 A new water-stable metal-organic framework,[Cu2(bdc)2(tpt)3]·2H2O(1,H2 bdc = terephthalic acid,tpt = 2,4,6-tri(4-pyridinyl)-1,3,5-triazine),has been synthesized and characterized by elemental analysis,infrared(IR) spectrum,thermogravimetric analysis(TGA),powder X-ray diffraction(PXRD) and single-crystal X-ray diffraction. Compund 1 crystalizes in monoclinic,space group C2/c with a = 30.147(5),b = 11.0548(17),c = 20.867(4) ?,β = 115.035(2)o,C70H48Cu2N18O10,Mr = 1428.34,V = 6301.0(18) ?3,Z = 8,Dc = 1.506 g/cm3,μ = 0.754 mm–1,F(000) = 2928,GOOF = 1.058,λ(MoK α) = 0.71073 ?,the final R = 0.0387 and wR = 0.1091 for 6230 observed reflections with I > 2σ(I). In compound 1,the half metallacycles [Cu2(tpt)3] are linked by the bdc2-ligands to form a 1D bent ladder-like chain featured with a nano-sized channel,and these chains link each other via intermolecular hydrogen bonds and π-π stacking interactions to form a 3D supramolecular architecture with the voids filled with free water molecules. In addition,the water stability of 1 was investigated by PXRD patterns,which indicate that compound 1 keeps its structural integrity in boiling water for at least three days.

【基金】 supported by the 973 key program of the Chinese Ministry of Science and Technology(MOST)(2012CB821705)
【所属期刊栏目】 organometallic structural chemistry (2016年12期)
  • 【DOI】10.14102/j.cnki.0254-5861.2011-1226
  • 【分类号】O641.4
  • 【下载频次】37
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