Exploiting the 1,2,3-Triazolium Motif in Anion-Templated Formation of a Bromide-Selective Rotaxane Host Assembly


  • We thank the EPSRC for a postdoctoral fellowship (K.M.M.), the EPSRC and Johnson Matthey for a CASE studentship (C.S.) and Oxford University Crystallography Service for the use of instruments.


Bromide is best: The first [2]rotaxane incorporating the triazolium anion-binding motif is prepared using bromide anion templation. Preliminary anion-binding investigations reveal that the rotaxane exhibits the rare selectivity preference for bromide over chloride ions.

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