Toward chemically controlled nanoscale molecular machinery

Hsian Rong Tseng, Scott A. Vignon, J. Fraser Stoddart*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

210 Scopus citations


Mechanical displacement of the ring by around 40% along the approximately 9-nm long dumbbell-shaped component has been seen in a bistable redox-controllable [2]rotaxane. Chemical oxidation of the tetrathiafulvalene recognition station (green, see scheme) in the dumbbell-shaped component, which also contains a 1,5-dioxynaphthalene recognition station (red), results in the cyclobis(paraquat-p-phenylene) tetracation (blue) undergoing translation from the much preferred green station to the second-choice, red station.

Original languageEnglish (US)
Pages (from-to)1491-1495
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number13
StatePublished - Apr 4 2003


  • Chemical switching
  • Molecular devices
  • Rotaxanes self-assembly
  • Supramolecular chemistry

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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