Artificial molecular rotors.

@article{Kottas2005ArtificialMR,
  title={Artificial molecular rotors.},
  author={Gregg S. Kottas and Laura Clarke and Dominik Horinek and Josef Michl},
  journal={Chemical reviews},
  year={2005},
  volume={105 4},
  pages={
          1281-376
        }
}
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