| Autor: |
Yong Wu, Qing-Hui Guo, Yunyan Qiu, Jacob A. Weber, Ryan M. Young, Laura Bancroft, Yang Jiao, Hongliang Chen, Bo Song, Wenqi Liu, Yuanning Feng, Xingang Zhao, Xuesong Li, Long Zhang, Xiao-Yang Chen, Hao Li, Michael R. Wasielewski, J. Fraser Stoddart |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Proceedings of the National Academy of Sciences of the United States of America. 119(12) |
| ISSN: |
1091-6490 |
| Popis: |
Although catenanes comprising two ring-shaped components can be made in large quantities by templation, the preparation of three-dimensional (3D) catenanes with cage-shaped components is still in its infancy. Here, we report the design and syntheses of two 3D catenanes by a sequence of SN2 reactions in one pot. The resulting triply mechanically interlocked molecules were fully characterized in both the solution and solid states. Mechanistic studies have revealed that a suit[3]ane, which contains a threefold symmetric cage component as the suit and a tribromide component as the body, is formed at elevated temperatures. This suit[3]ane was identified as the key reactive intermediate for the selective formation of the two 3D catenanes which do not represent thermodynamic minima. We foresee a future in which this particular synthetic strategy guides the rational design and production of mechanically interlocked molecules under kinetic control. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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