| Autor: |
Yong Wu, Qing-Hui Guo, Yunyan Qiu, Weber, Jacob A., Young, Ryan M., Bancroft, Laura, Yang Jiao, Hongliang Chen, Bo Song, Wenqi Liu, Yuanning Feng, Xingang Zhao, Xuesong Li, Long Zhang, Xiao-Yang Chen, Hao Li, Wasielewski, Michael R., Fraser Stoddart, J. |
| Předmět: |
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| Zdroj: |
Proceedings of the National Academy of Sciences of the United States of America; 3/22/2022, Vol. 119 Issue 12, p1-6, 6p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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