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Title: Three-dimensional periodic supramolecular organic framework ion sponge in water and microcrystals

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms6574· OSTI ID:1255553
 [1];  [2];  [1];  [3];  [3];  [1];  [1];  [1];  [2];  [3];  [1]
  1. Fudan Univ., Shanghai (China)
  2. Chinese Academy of Sciences (CAS), Shanghai (China). Shanghai Institute of Organic Chemistry
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Self-assembly has emerged as a powerful approach to generating complex supramolecular architectures. Despite there being many crystalline frameworks reported in the solid state, the construction of highly soluble periodic supramolecular networks in a three-dimensional space is still a challenge. In this paper we demonstrate that the encapsulation motif, which involves the dimerization of two aromatic units within cucurbit[8]uril, can be used to direct the co-assembly of a tetratopic molecular block and cucurbit[8]uril into a periodic three-dimensional supramolecular organic framework in water. The periodicity of the supramolecular organic framework is supported by solution-phase small-angle X-ray-scattering and diffraction experiments. Upon evaporating the solvent, the periodicity of the framework is maintained in porous microcrystals. Lastly, as a supramolecular 'ion sponge', the framework can absorb different kinds of anionic guests, including drugs, in both water and microcrystals, and drugs absorbed in microcrystals can be released to water with selectivity.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1255553
Journal Information:
Nature Communications, Vol. 5; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 176 works
Citation information provided by
Web of Science

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Efficient Separation of cis ‐ and trans ‐1,2‐Dichloroethene Isomers by Adaptive Biphen[3]arene Crystals journal June 2019
Shape-Controllable and Fluorescent Supramolecular Organic Frameworks Through Aqueous Host-Guest Complexation journal December 2017
Efficient Separation of cis - and trans -1,2-Dichloroethene Isomers by Adaptive Biphen[3]arene Crystals journal June 2019
2:2 Complexes from Diphenylpyridiniums and Cucurbit[8]uril: Encapsulation-Promoted Dimerization of Electrostatically Repulsing Pyridiniums journal April 2018
Highly Luminescent and Water-Soluble Two-Dimensional Supramolecular Organic Framework: All-Organic Photosensitizer Template for Visible-Light-Driven Hydrogen Evolution from Water journal January 2018
Facile Construction of Structurally Defined Porous Membranes from Supramolecular Hexakistriphenylamine Metallacycles through Electropolymerization journal March 2016
From Packed “Sandwich” to “Russian Doll”: Assembly by Charge-Transfer Interactions in Cucurbit[10]uril journal November 2016
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Reversible 2D Supramolecular Organic Frameworks encompassing Viologen Cation Radicals and CB[8] journal January 2018
A polyrotaxanated covalent organic network based on viologen and cucurbit[7]uril journal September 2019
pH-Responsive single-layer honeycomb supramolecular organic frameworks that exhibit antimicrobial activity journal January 2016
A thermally stable pH-responsive “supramolecular buckle” based on the encapsulation of 4-(4-aminophenyl)-N-methylpyridinium by cucurbit[8]uril journal January 2015
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Fluorescence enhancement through the formation of a single-layer two-dimensional supramolecular organic framework and its application in highly selective recognition of picric acid journal January 2016
Supramolecular organic frameworks of cucurbit[n]uril-based [2]pseudorotaxanes in the crystalline state journal January 2016
A polycationic covalent organic framework: a robust adsorbent for anionic dye pollutants journal January 2016
Multifunctional redox-tuned viologen-based covalent organic polymers journal January 2016
Crystalline nanotubular framework constructed by cucurbit[8]uril for selective CO 2 adsorption journal January 2017
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A pH responsive complexation-based drug delivery system for oxaliplatin journal January 2017
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Engineering a pillar[5]arene-based supramolecular organic framework by a co-crystallization method journal January 2018
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Charge Regulation of Self-Assembled Tubules by Protonation for Efficiently Selective and Controlled Drug Delivery journal September 2019
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