Cucurbituril‐Based Metal–Organic Rotaxane Framework for Dual‐Capture of Molecular Iodine and Cationic Potassium Ion

Metal–organic rotaxane frameworks (MORFs) attracted much attention in the past years for construction of intelligent functional materials. Herein, a one‐pot synthesis is reported of a three‐dimensional (3D) cucurbit[7]uril (Q[7])‐based MORF under hydrothermal conditions, namely Q[7]‐MORF‐1, formed b...

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Published in:Chemistry : a European journal 2020-02, Vol.26 (10), p.2154-2158
Main Authors: Xiu‐Du Zhang, Zhao, Yue, Chen, Kai, Xiao‐Yao Dao, Yan‐Shang Kang, Liu, Yi, Wei‐Yin Sun
Format: Article
Language:English
Subjects:
Alkali metals
Benzoates
Carbonyl compounds
Carbonyls
Cations
Chemistry
Functional materials
Iodine
Metal ions
Potassium
Rotaxanes
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container_title Chemistry : a European journal
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Zhao, Yue
Chen, Kai
Xiao‐Yao Dao
Yan‐Shang Kang
Liu, Yi
Wei‐Yin Sun
description Metal–organic rotaxane frameworks (MORFs) attracted much attention in the past years for construction of intelligent functional materials. Herein, a one‐pot synthesis is reported of a three‐dimensional (3D) cucurbit[7]uril (Q[7])‐based MORF under hydrothermal conditions, namely Q[7]‐MORF‐1, formed by encapsulating the anionic benzoate moieties of the tricarboxylate ligand into the cavity of Q[7]. Furthermore, Q[7]‐MORF‐1 shows dual‐capture capacity for iodine and K+ selectively among the alkali metal ions. The captured molecular iodine is included in the cavity of Q[7] through halogen‐bonding interactions and the K+ cations are positioned at the carbonyl port of the Q[7] through K−O coordination interactions.
doi_str_mv 10.1002/chem.201905156
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subjects Alkali metals
Benzoates
Carbonyl compounds
Carbonyls
Cations
Chemistry
Functional materials
Iodine
Metal ions
Potassium
Rotaxanes
title Cucurbituril‐Based Metal–Organic Rotaxane Framework for Dual‐Capture of Molecular Iodine and Cationic Potassium Ion
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