Locking the Dynamic Axial Chirality of Biphenyl Crown Ethers through Threading

Tomoya Kimura1, Shinobu Miyagawa1, Hikaru Takaya2,3

  • 1Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan.

Summary

This study synthesizes rotaxanes with biphenyl crown ethers and ammonium ions. The 23-membered crown ether rotaxane locks axial chirality at room temperature, unlike the 26-membered version.

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