A Conjugated Figure-of-eight Oligoparaphenylene Nanohoop with Adaptive Cavities Derived from Cyclooctatetrathiophene Core

Authors: 
Lijie Zhan, Chenshu Dai, Guohui Zhang, Jun Zhu,* Shaoguang Zhang, Hua Wang, Yi Zeng, Chen-Ho Tung, Li-Zhu Wu, Huan Cong*
Journal: 
Angew. Chem. Int. Ed.
Year: 
2021
Volume: 
60
FirstPage-LastPage: 
Accepted Article
TOC: 
Abstract: 

A fully conjugated figure-of-eight nanohoop is presented with facile synthesis. The molecule’s lemniscular skeleton features the combination of two strained oligoparaphenylene loops and a flexible cyclooctatetrathiophene core. Its rigid yet guest-adaptive cavities enable the formation of the peanut-like 1:2 host-guest complexes with C 60 or C 70 , which have been confirmed by X-ray crystallography and characterized in solution. Further computational studies suggest notable geometric variations and non-covalent interactions of the cavities upon binding with different fullerenes, as well as the overall conjugation comparable to cycloparaphenylenes.

https://onlinelibrary.wiley.com/doi/10.1002/anie.202113334

Doi: 
10.1002/anie.202113334