期刊
CHEMICAL COMMUNICATIONS
卷 50, 期 100, 页码 15886-15889出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc06588c
关键词
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资金
- National Natural Science Foundation of China [21171093, 21476115, 51109062]
A water stable porous 3D metal-organic framework, [Cu3L2(mu(3)-OH)(2)(mu(2)-H2O)]center dot 2DMA (1, mother crystal, H2L = 2,2'-dinitrobiphenyl-4,4'-dicarboxylic acid, DMA = N,N-dimethylacetamide), shows unprecedented irreversible solvent-induced substitutions of bridging aqua ligands and guest-exchanges in single-crystal-to-single-crystal (SCSC) transformations at room temperature (RT), producing quantitatively three daughter crystals, [Cu3L2(mu(3)-OH)(2)]center dot 2S (2: 2A, S = acetone; 2B, S = 2-propanol; 2C, S = 2-butanol), which exhibit reversible interconversion by guest-exchanges at RT in SCSC transformations. MOF 1 shows excellent separation selectivity (128) of CO2/N-2 at RT and is a better sorbent of micro-solid-phase extraction (mu-SPE) than currently known benchmark ZIF-8.
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