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Keywords:

  • anthracene;
  • fluorescence quenching;
  • Michael addition;
  • molecular devices;
  • molecular walkers
Thumbnail image of graphical abstract

Charge of the light brigade: A molecule is able to walk back and forth upon a five-foothold pentaethylenimine track without external intervention. The 1D random walk is highly processive (mean step number 530) and exchange takes place between adjacent amine groups in a stepwise fashion. The walker performs a simple task whilst walking: quenching of the fluorescence of an anthracene group sited at one end of the track.