Synthesis, Structure and Property of a Metal-organic Framework Based on 9-(2,6-Dicarboxy-pyridin-4-yl)-9H-carbazole-3,6-dicarboxylic Acid  

作　　者：LIU Ye-Kun ZHOU Xin-Hui 刘烨锟;周馨慧(Queen Mary University of London Engineering School,Northwestern Polytechnical University,Xi'an 710072,China;Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors,Institute of Advanced Materials(IAM),Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Nanjing University of Posts&Telecommunications,Nanjing 210023,China)

机构地区：[1]Queen Mary University of London Engineering School,Northwestern Polytechnical University,Xi'an 710072,China [2]Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors,Institute of Advanced Materials(IAM),Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Nanjing University of Posts&Telecommunications,Nanjing 210023,China

出　　处：《Chinese Journal of Structural Chemistry》2020年第3期559-566,380,共9页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(21973047)。

摘　　要：A new terbium(III) metal-organic framework [Tb(HL)(H2O)](Tb L) based on a new synthetic ligand 9-(2,6-dicarboxy-pyridin-4-yl)-9 H-carbazole-3,6-dicarboxylic acid(H4 L) has been synthesized under solvothermal conditions. Its structure was determined by single-crystal X-ray diffraction analysis, and further characterized by powder X-ray diffraction analysis and IR spectra. The title complex crystallizes in trigonal space group P3212 with a = b = 13.6491(11), c = 32.345(3) ?, γ = 120°, V = 5218.5(10) ?~3, C(42)H(20)N4O(17)Tb2, Mr = 1170.46, Dc = 1.117 g/cm^3, μ(Mo Kα) = 2.065 mm^(-1), F(000) = 1698, GOF = 1.054, Z = 3, the final R = 0.0384 and wR = 0.0771 for 5223 observed reflections(I > 2s(I)). In Tb L, the tri-bridged binuclear Tb2 units are bibridged by two carbazole-3,6-dicarboxylate moieties to lead to the homochiral parallel arranged helical chains, which are further connected by 2,6-pyridinedicarboxylate moieties to produce the chiral neutral 3 D framework. There are there kinds of 1 D channels in the framework with the channel space occupying 53.3% of the total volume. TbL exhibits intense characteristic green emission of Tb^(3+) ions.

关 键 词：METAL-ORGANIC frameworks(MOFs) terbium(III) CARBAZOLE photoluminescence 

分 类 号：O641.4[理学—物理化学]