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Cucurbituril‐Encapsulating Metal–Organic Framework via Mechanochemistry: Adsorbents with Enhanced Performance
Author(s) -
Liang Jun,
Gvilava Vasily,
Jansen Christian,
Öztürk Secil,
Spieß Alex,
Lin Jingxiang,
Xing Shanghua,
Sun Yangyang,
Wang Hao,
Janiak Christoph
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202100675
Subject(s) - chemistry , mechanochemistry , cucurbituril , hybrid material , metal organic framework , adsorption , macropore , chemical engineering , nanotechnology , supramolecular chemistry , organic chemistry , crystal structure , catalysis , materials science , mesoporous material , engineering
The first examples of monolithic crystalline host–guest hybrid materials are described. The reaction of 1,3,5‐benzenetricarboxylic acid (H 3 BTC) and Fe(NO 3 ) 3 ⋅9 H 2 O in the presence of decamethylcucurbit[5]uril ammonium chloride (MC5⋅2 NH 4 Cl⋅4 H 2 O) directly affords MC5@MIL‐100(Fe) hybrid monoliths featuring hierarchical micro‐, meso‐ and macropores. Particularly, this “bottle‐around‐ship” synthesis and one‐pot shaping are facilitated by a newly discovered Fe‐MC5 flowing gel formed by mechanochemistry. The designed MC5@MIL‐100(Fe) hybrid material with MC5 as active domains shows enhanced CH 4 and lead(II) uptake performance, and selective capture of lead(II) cations at low concentrations. This shows that host–guest hybrid materials can exhibit synergic properties that out‐perform materials based on individual components.