Thermodynamic Insights on a Bistable Acid-Base Switchable Molecular Shuttle with Strongly Shifted Co-conformational Equilibria.

@article{Ragazzon2017ThermodynamicIO,
  title={Thermodynamic Insights on a Bistable Acid-Base Switchable Molecular Shuttle with Strongly Shifted Co-conformational Equilibria.},
  author={Giulio Ragazzon and Alberto Credi and Benoit Colasson},
  journal={Chemistry},
  year={2017},
  volume={23 9},
  pages={2149-2156}
}
Bistable [2]rotaxanes in which the affinities of the two stations can be reversed form the basis of molecular shuttles. Gaining quantitative information on such rotaxanes in which the ring distribution between the two stations is largely nonsymmetric has proven to be very challenging. Herein, we report on two independent experimental methodologies, based on luminescence lifetime measurements and acid-base titrations, to determine the relative populations of the two co-conformations of a [2… CONTINUE READING
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