Perfect Host for Tetrathiafulvalene

  • ChemPubSoc Europe Logo
  • Author: EurJOC
  • Published Date: 17 March 2011
  • Source / Publisher: European Journal of Organic Chemistry/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Perfect Host for Tetrathiafulvalene

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French researchers led by Jean-Pierre Sauvage, University of Strasbourg, and Marc Sallé, University of Angers, have shown that a cyclic [4]rotaxane is able to encapsulate one π-donating tetrathiafulvalene (TTF) molecule thanks to donor–acceptor interactions. The encapsulation of another π donor, namely extended tetrathiafulvalene (exTTF), which possesses a similar π-donating ability but a much larger structure and a curved shape, is not possible because exTTF is too large to enter the cavity. This means that the cyclic rotaxane is a shape/size-selective receptor.

This work paves the way to the elaboration of new topologically interesting systems, like “rotaxanes of rotaxanes” by taking advantage of the threaded nature of the present complex.

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