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Article

Multiple Stimuli-Responsive Conformational Exchanges of Biphen[3]arene Macrocycle

1
Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
2
Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen 518055, China
3
Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
*
Author to whom correspondence should be addressed.
These two authors contributed equally to this paper.
Academic Editor: Feihe Huang
Molecules 2020, 25(24), 5780; https://doi.org/10.3390/molecules25245780
Received: 19 October 2020 / Revised: 9 November 2020 / Accepted: 11 November 2020 / Published: 8 December 2020
Conformational exchanges of synthetic macrocyclic acceptors are rather fast, which is rarely studied in the absence of guests. Here, we report multiple stimuli-responsive conformational exchanges between two preexisting conformations of 2,2′,4,4′-tetramethoxyl biphen[3]arene (MeBP3) macrocycle. Structures of these two conformations are both observed in solid state, and characterized by 1H NMR, 13C NMR and 2D NMR in solution. In particular, conformational exchanges can respond to solvents, temperatures, guest binding and acid/base addition. The current system may have a role to play in the construction of molecular switches and other stimuli-responsive systems. View Full-Text
Keywords: macrocycle; conformational exchange; multiple stimuli-responsive macrocycle; conformational exchange; multiple stimuli-responsive
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MDPI and ACS Style

Wang, Y.; Yang, L.-P.; Zhao, X.; Cui, L.; Li, J.; Jia, X.; Fang, J.; Li, C. Multiple Stimuli-Responsive Conformational Exchanges of Biphen[3]arene Macrocycle. Molecules 2020, 25, 5780. https://doi.org/10.3390/molecules25245780

AMA Style

Wang Y, Yang L-P, Zhao X, Cui L, Li J, Jia X, Fang J, Li C. Multiple Stimuli-Responsive Conformational Exchanges of Biphen[3]arene Macrocycle. Molecules. 2020; 25(24):5780. https://doi.org/10.3390/molecules25245780

Chicago/Turabian Style

Wang, Yiliang, Liu-Pan Yang, Xiang Zhao, Lei Cui, Jian Li, Xueshun Jia, Jianhui Fang, and Chunju Li. 2020. "Multiple Stimuli-Responsive Conformational Exchanges of Biphen[3]arene Macrocycle" Molecules 25, no. 24: 5780. https://doi.org/10.3390/molecules25245780

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