Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 142, Issue 16, Pages 7356-7361Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c02275
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Funding
- Marie Sklodowska-Curie Fellowship (H2020-MSCA-IF-2018) [845640]
- EPSRC [EP/R512461/1]
- ERC consolidator grant (CAM-RIG) [726470]
- EPSRC Programme Grant (NOtCH) [EP/L027151/1]
- CDT
- EPSRC [EP/L027151/1, 1944645] Funding Source: UKRI
- Marie Curie Actions (MSCA) [845640] Funding Source: Marie Curie Actions (MSCA)
- European Research Council (ERC) [726470] Funding Source: European Research Council (ERC)
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Phenyl-perfluorophenyl polar-pi interactions have been revisited for the design and fabrication of functional supramolecular systems. The relatively weak associative interactions (Delta G approximate to -1.0 kcal/mol) have limited their use in aqueous selfassembly to date. Herein, we propose a strategy to strengthen phenyl-perfluorophenyl polar-pi interactions by encapsulation within a synthetic host, thus increasing the binding affinity to Delta G= -15.5 kcal/mol upon formation of heteroternary complexes through social self-sorting. These heteroternary complexes were used as dynamic, yet strong, cross-linkers in the fabrication of supramolecular gels, which exhibited excellent viscoelasticity, stretchability, self-recovery, self-healing, and energy dissipation. This work unveils a general approach to exploit host-enhanced polar-pi interactions in the design of robust aqueous supramolecular systems.
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