| Hydrothermal Synthesis and Crystal Structure of a New Three-dimensional Co（II） Coordination Polymer Based on 2,3-Thiophenedicarboxylic Acid |
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| 作者姓名： | ZHANG Tian CHEN Xiu-Hua LI Zhao-Hao XUE Li-Ping |
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| 作者单位： | [1]College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, China [2]Department of Chemistry, Zhengzhou University, Zhengzhou 450052, China |
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| 基金项目： | This work was supported by the Natural Science Foundation of Henan Province （No. 132300410326） |
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| 摘 要： | A new Co（ll） polymer [Co（tdc）（l,4-bimb）]n 1 （H2tdc = thiophene-2,3-dicarboxy- lic acid, 1,4-bimb -- 1,4-bis（imidazol-1 ＇-yl）butane） was synthesized under hydrothermal conditions The compound crystallizes in the monoclinic system, space group C2/c with a = 15.643（9）, b = 8.839（5）, c=12.952（7） A, β = 105.964（6）°, V= 1721.8（16） A3, Z = 4, Mr = 419.32, Dc= 1.618 Mg/m3,μ = 1.149 mm-1, F（000） = 860, the final R = 0.0243 and wR =0.0613 for 1460 observed reflections with I 〉 2σ（I）. The compound presents a three-dimensional （3D） network extended by both tdc2- anions and 1,4-bimb ligands in which the tdc2- anions employ a chelating coordination mode. From the topology point of view, the structure could be described as a 3D 4-connected 65.8 CdSO4-type net. Infrared spectroscopy, elemental analyses, thermogravimetric analysis and powder X-ray diffraction properties of 1 are also investigated.
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| 关 键 词： | 噻吩二羧酸 配位聚合物 晶体结构 水热合成 三维 X-射线衍射 Co（Ⅱ） 单斜晶系 |
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