Phosphine oxide functional group based three-station molecular shuttle

Li Liu; Yuanyuan Liu; Pingying Liu; Jie Wu; Yangfan Guan; Xiaoyu Hu; Chen Lin; Yang Yang; Xiaoqiang Sun; Jing Ma; Leyong Wang

doi:10.1039/C3SC22048F

Phosphine oxide functional group based three-station molecular shuttle†

Li Liu,^a Yuanyuan Liu,^a Pingying Liu,^a Jie Wu,^a Yangfan Guan,^a Xiaoyu Hu,^a Chen Lin,^a Yang Yang,^b Xiaoqiang Sun,^b Jing Ma^a and Leyong Wang*^a

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* Corresponding authors

^a Key Laboratory of Mesoscopic Chemistry of MOE, Center for Multimolecular Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
E-mail: lywang@nju.edu.cn
Fax: +86 25-83597090

^b School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China

Abstract

A switchable three-station rotaxane based molecular shuttle with phosphine oxide, dibenzylammonium, and urea functional groups has been developed, where the macrocycle can be easily switched between three different binding sites along the rotaxane thread by addition of acid/base or anions resulting in three stable states. Phosphine oxide is shown to be a potential recognition unit for rotaxane based molecular shuttles and plays an important role as one of three “stations”, allowing the design of a new class of molecular shuttles.

Chemical Science

Phosphine oxide functional group based three-station molecular shuttle†

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