Abstract
The Na+ ion-assisted recognition of urea derivatives by BPX26C6 has allowed the construction of a redox-controllable [2]rotaxane-type molecular switch based on two originally very weakly interacting host/guest systems. Using NOBF4 to oxidize the triarylamine terminus into a corresponding radical cation attracted the macrocyclic component toward its adjacent carbamate station; subsequent addition of Zn powder moved the macrocyclic component back to its urea station.
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Chang, J. C., Lai, C. C., & Chiu, S. H. (2015). A redox-controllable molecular switch based on weak recognition of BPX26C6 at a diphenylurea station. Molecules, 20(2), 1775–1787. https://doi.org/10.3390/molecules20021775
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