A Luminescent Zn(Ⅱ) Supramolecular Coordination Polymer Constructed from 3,4-Thiophenedicarboxylic Acid and Flexible Benzimidazole-based Connector  

作　　者：杜西刚 米刚 刘继纯 张军 

机构地区：[1]School of Chemical Engineering and Pharmaceutics,Henan University of Science and Technology

出　　处：《Chinese Journal of Structural Chemistry》2014年第11期1597-1602,共6页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(No.21076063);the Foundation of Henan Educational Committee(No.13A150244)

摘　　要：A new luminescent coordination polymer [Zn（tdc）（pbim）]n 1（tdc = 3,4-thiophenedicarboxylate, pbim = 1,3-bis（benzimidazol-1ˊ-yl）propane） has been synthesized under hydrothermal conditions. The compound crystallizes in monoclinic system, space group P21/c with a = 8.4840（9）, b = 16.4913（17）, c = 14.9234（16） A, β = 95.8870（10）°, V = 2077.0（4） A3, Z = 4, Mr = 511.84, Dc = 1.637 Mg/m3, μ = 1.324 mm-1, F（000） = 1048, the final R = 0.0361 and w R = 0.0824 for 3656 observed reflections with I 〉 2（I）. Structural analyses reveal that 1 exhibits a onedimensional（1D） double chain, which is further connected into a two-dimensional（2D） supramolecular architecture by π-π stacking interactions. The results indicate that H2 tdc and pbim ligand are effective building blocks in constructing polymers with diverse architecture. Solid state properties for 1, such as infrared spectroscopy, elemental analyses, thermal stability and luminescent property, have also been investigated.A new luminescent coordination polymer [Zn（tdc）（pbim）]n 1（tdc = 3,4-thiophenedicarboxylate, pbim = 1,3-bis（benzimidazol-1ˊ-yl）propane） has been synthesized under hydrothermal conditions. The compound crystallizes in monoclinic system, space group P21/c with a = 8.4840（9）, b = 16.4913（17）, c = 14.9234（16） A, β = 95.8870（10）°, V = 2077.0（4） A3, Z = 4, Mr = 511.84, Dc = 1.637 Mg/m3, μ = 1.324 mm-1, F（000） = 1048, the final R = 0.0361 and w R = 0.0824 for 3656 observed reflections with I 〉 2（I）. Structural analyses reveal that 1 exhibits a onedimensional（1D） double chain, which is further connected into a two-dimensional（2D） supramolecular architecture by π-π stacking interactions. The results indicate that H2 tdc and pbim ligand are effective building blocks in constructing polymers with diverse architecture. Solid state properties for 1, such as infrared spectroscopy, elemental analyses, thermal stability and luminescent property, have also been investigated.

关 键 词：zinc（Ⅱ） 3 4-thiophenedicarboxylate hydrothermal synthesis crystal structure luminescent property 

分 类 号：O634[理学—高分子化学]