Abstract

A novel 3D microporous metal-organic framework with NbO topology, [Cu2(L)(H2O)2]∙(DMF)6·(H2O)2 (ZJU-10, ZJU = Zhejiang University; H4L =2′-hydroxy-[1,1′:4′,1″-terphenyl]-3,3″,5,5″-tetracarboxylic acid; DMF =N,N-dimethylformamide), has been synthesized and structurally characterized. With suitable pore sizes and open Cu2+ sites, ZJU-10a exhibits high BET surface area of 2392m2/g, as well as moderately high C2H2 volumetric uptake capacity of 132cm3/cm3. Meanwhile, ZJU-10a is a promising porous material for separation of acetylene from methane and carbon dioxide gas mixtures at room temperature.

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