Three Metal鈥揙rganic Frameworks Based on Binodal Inorganic Building Units and Hetero-O, N Donor Ligand: Solvothermal Syntheses, Structures, and Gas Sorption Properties

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• 作者：Xiaolong Luo ; Libo Sun ; Jun Zhao ; Dong-Sheng Li ; Dongmei Wang ; Guanghua Li ; Qisheng Huo ; Yunling Liu
• 刊名：Crystal Growth & Design
• 出版年：2015
• 出版时间：October 7, 2015
• 年：2015
• 卷：15
• 期：10
• 页码：4901-4907
• 全文大小：533K
• ISSN：1528-7505

文摘

Three new metal鈥搊rganic frameworks (MOFs) based on hetero-O, N donor ligands, (Cu₄I₄)[Cu₂(PDC)₂DMF₂]₂路2DMF路H₂O (JLU-Liu15), (Cu₄I₄)[Cu₃(CPNA)₃(Dabco)_0.5DMF₃]路4DMF路4H₂O (JLU-Liu16), and (Cu₄I₄)[Cu₃(CPNA)₃(H₂O)_0.5DMF₃]路4DMF路4H₂O (JLU-Liu17), (H₂PDC = pyridine-3,5-dicarboxylic acid, H₂CPNA = 5-(4鈥?carboxylphenyl) nicotinic acid, Dabco = 1,4-diazabicyclo[2.2.2]octane), have been solvothermally synthesized and structurally characterized by single-crystal X-ray diffraction analyses. JLU-Liu15 features a (3,4,4)-c sqc5588 net, whereas JLU-Liu16 and JLU-Liu17 are isostructural and possess a new (3,4,4)-c topology. All of these compounds are composed of the binodal inorganic Cu₂(CO₂)₄ paddlewheel and Cu₄I₄ cluster secondary building units (SBUs). It is worthy to note that the linkage between two nearby Cu₄I₄ clusters in JLU-Liu16 is 渭₂-Dabco, which changed to a 渭₂-water molecule in JLU-Liu17. Furthermore, JLU-Liu15 exhibits high CO₂ adsorption behaviors as well as I₂ uptake and release features.