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Z. Naturforsch. 2014, 69b, 864 – 870
doi:10.5560/ZNB.2014-4091
Ionothermal Synthesis and Crystal Structure of a Neutral 2D Metal-Organic Framework Based on Cobalt(II) 1,2,3-Benzenetricarboxylate
Shun Shun Liu, Rui Min Zhou, Shuai Chen, Yan Bai, and Dong Bin Dang
Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
Reprint requests to Yan Bai or Dong Bin Dang. Fax: +86-371-23881589. E-mail: baiyan@henu.edu.cn or dangdb@henu.edu.cn
Received April 13, 2014 / published online August 12, 2014
A neutral metal-organic framework [CoNa3(1,2,3-Hbtb)(1,2,3-btb)] (1) has been synthesized through an ionothermal method using 1-ethyl-3-methylimidazolium bromide as solvent (1,2,3-H3btb = 1,2,3-benzenetricarboxylic acid). The complex has been characterized by IR spectroscopy, elemental analysis, PXRD and single-crystal X-ray diffraction. The structure of 1 exhibits a layer network structure in which Co(II) is five-coordinated forming a distorted trigonal bipyramid. Na1 and Na3 are surrounded by seven oxygen atoms, and Na2 is six-coordinated. In the structure, the anions of 1,2,3-H3btb are embedded in two bridging μ8 coordination modes. The luminescence properties of 1 have been investigated in the solid state at room temperature.
Key words: Metal-Organic Framework, Ionothermal Reaction, Crystal Structure, Luminescence Properties
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