含棒状次级构建单元具有选择吸附性质的铜-有机框架

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摘要

一种新颖的基于3,5-二（4-苯甲酸基）苯甲酸配体构筑的铜-有机框架（1）被合成，并且通过X-射线衍射、粉末衍射、红外以及热重等进行了分析和表征。该配合物是正交晶系，Pbca空间群。主要的晶胞参数如下：a = 21.573(19)，b = 5.404(5)，c = 33.78(3)，分子式C21H12O7Cu2，Mr = 503.39，V = 3938(6) Å3，Z = 8，Dc = 1.698 g·cm-3，μ = 2.202 mm-1，F(000) = 2016，1.21<θ<25.01°，λ (MoKα) = 0.71073，T = 293(2) K，R = 0.0488，wR = 0.1319。该配合物具有建立在无限延伸棒状次级构建单元基础上的三维结构，该结构可以简化为kgd拓扑。我们测试了它对氮气、二氧化碳、水、甲醇和乙醇的吸附性质，发现在195 K时，选择吸附二氧化碳。

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	崔培培
	崔论峰
	赵兴航
	耿楠
	孟凡花

关键词 ： copper-organic framework, rod-shaped secondary building units, sorption property

Abstract：One novel metal-organic framework [Cu2(L)(3-OH)]n (1, H3L = [1,1΄:3΄,1΄΄- terphenyl]-4,4΄΄,5΄-tricarboxylic acid) has been synthesized and characterized by single-crystal powder X-ray diffraction, IR and thermogravimetric analyses. Complex 1 crystallizes in orthorhombic crystal system, space group Pbca with a = 21.573(19), b = 5.404(5), c = 33.78(3) Å, C21H12O7Cu2, Mr = 503.39, V = 3938(6) Å3, Z = 8, Dc = 1.698 g•cm-3, μ = 2.202 mm-1, F(000) = 2016, 1.531<θ<25.009°, λ(MoKα) = 0.71073 Å, T = 293(2) K, the final R = 0.0448 and wR = 0.1002. The structure of complex 1 is a three-dimensional (3D) framework based on infinite rod-shaped secondary building units and can be simplified as kgd topology. The gas adsorption measurements for N2, CO2, H2O, CH3OH and CH3CH2OH have been done. Fortunately, the selective sorption of CO2 over N2 was found at 195 K.

Key words： copper-organic framework rod-shaped secondary building units sorption property

基金资助:Supported by the Natural Science Foundation of Shandong Province (No. ZR2016BL01) and the Talent Introduction Project of Dezhou University (No. 320116)

通讯作者: 1cuipeipei1@163.com E-mail: 1cuipeipei1@163.com

引用本文:

崔培培;崔论峰;赵兴航;耿楠;孟凡花. 含棒状次级构建单元具有选择吸附性质的铜-有机框架[J]. 结构化学, 2017, 36(9 ): 1526-1531.
CUI Pei-Pei;CUI Lun-Feng;ZHAO Xing-Hang;GENG Nan;MENG Fan-Hua. Copper-organic Framework Constructed from Rod-shaped Secondary Building Units with Selective Sorption Property. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2017, 36(9 ): 1526-1531.

链接本文:

http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2017/V36/I9 /1526

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