Angewandte Chemie International Edition in English, 19(34), p. 2132-2134
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Exceptionally high binding constants Ka of up to 57000 have been determined for the binding of paraquat and polymeric paraquat derivatives 2 in the cavities of basket-shaped host molecules 1. Host–guest complexations of this kind are of interest with respect to the modification of the physical properties of electroactive polymers, which are potential molecular switches.