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A Hydrophobic Metal–Organic Framework Based on Cubane‐Type [Co 4 (μ 3 ‐F) 3 (μ 3 ‐SO 4 )] 3+ Clusters for Gas Storage and Adsorption Selectivity of Benzene over Cyclohexane
Author(s) -
Zhang Lei,
Yang Wenbin,
Wu XiaoYuan,
Lu CanZhong,
Chen WenZhe
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201600705
Subject(s) - cubane , cyclohexane , adsorption , thermal stability , benzene , aqueous solution , cobalt , metal organic framework , chemistry , fluoride , molecule , inorganic chemistry , materials science , organic chemistry
Hydrophobic metal‐organic frameworks (MOFs) not only have high water stability, but also exhibit high adsorption capacity towards organic molecules, in particular hydrocarbons. Herein we report a rare metal fluoride organic framework MFOF‐1 with high hydrophobicity, which is constructed from unprecedented fluoride‐ and sulfate‐bridged cubane‐type tetranuclear cobalt clusters. MFOF‐1 consists of three types of polyhedral cages with face‐sharing configurations, and possesses a novel (3,9)‐connected 3D+3D→3D self‐interpenetrating array or the rare pyr topology. MFOF‐1 shows high thermal stability and high stability in water and even acid/base aqueous solutions, and exhibits rather high H 2 and CO 2 storage capacities at ambient pressure. Remarkably, MFOF‐1 shows little adsorption of water but considerably high uptakes of methanol, n ‐hexane, cyclohexane, and benzene, and exhibits a certain degree of adsorption selectivity of benzene over cyclohexane.