An ion-pair template for rotaxane formation and its exploitation in an orthogonal interaction anion-switchable molecular shuttle

Article abstract of DOI:10.1002/anie.200802745

(Chemical Equation Presented) Chloride control: The serendipitous discovery of a molecular recognition motif that is triggered by the formation of an anion-palladium coordination bond is exploited as an efficient rotaxane-forming template and as the basis of a molecular shuttle. The macrocycle of this rotaxane moves between the two stations when the counterion is changed from chloride to hexafluorophosphate (see picture).