Viologen-Based Rotaxanes from Dibenzo-30-crown-10

J Am Chem Soc. 2018 Jun 13;140(23):7358-7370. doi: 10.1021/jacs.8b04477. Epub 2018 Jun 4.

Abstract

Three [2]rotaxanes (4, 7, and 12) and one [3]rotaxane (8) were synthesized based on the dibenzo-30-crown-10/viologen binding motif. To the best of our knowledge, these are the first rotaxanes formed from dibenzo-30-crown-10 and viologens. The rotaxanes were all characterized by 1H NMR, 13C NMR, and HRMS. An X-ray crystal structure of one of the [2]rotaxanes (7) was obtained. This work demonstrates for the first time that dibenzo-30-crown-10 does form pseudorotaxane complexes with viologens in solution.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.