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Issue 14, 2018
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A novel polyhedron-based metal–organic framework with high performance for gas uptake and light hydrocarbon separation

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Abstract

A novel polyhedron-based metal–organic framework [(CH3)2NH2]2[Zn3(TADIPA)2(DMF)2]·4DMF (JLU-Liu40), which possesses three types of cages with different shapes and sizes, has been successfully synthesized. The framework of JLU-Liu40 is constructed by two inorganic secondary building units (SBUs) of 4-connected square binuclear Zn-paddlewheel and 4-connected tetrahedron mononuclear Zn unit and one organic SBU, which has abundant Lewis basic sites (LBSs), and the framework can be simplified as a pair of 3-connected triangle geometries. Moreover, JLU-Liu40 shows a new (3, 4, 4)-connected topology with the Schläfli symbol {72, 9}2{74, 82}. With the benefit of its high density of open metal sites (OMSs) and LBSs, JLU-Liu40 shows good adsorption ability for some small gases such as N2, CO2, CH4, C2H6 and C3H8. In addition, the theoretical ideal adsorbed solution theory (IAST) calculation indicates that JLU-Liu40 should be a promising material for light gas separation.

Graphical abstract: A novel polyhedron-based metal–organic framework with high performance for gas uptake and light hydrocarbon separation

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Publication details

The article was received on 07 Dec 2017, accepted on 05 Mar 2018 and first published on 06 Mar 2018


Article type: Paper
DOI: 10.1039/C7DT04622G
Citation: Dalton Trans., 2018,47, 5005-5010
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    A novel polyhedron-based metal–organic framework with high performance for gas uptake and light hydrocarbon separation

    Q. Sun, S. Yao, B. Liu, X. Liu, G. Li, X. Liu and Y. Liu, Dalton Trans., 2018, 47, 5005
    DOI: 10.1039/C7DT04622G

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