Michal Řezanka, Matthew J. Langton and Paul D. Beer
Chem. Commun., 2015,51, 4499-4502
DOI:
10.1039/C5CC00171D,
Communication
The synthesis of a water soluble [2]rotaxane is reported using hydrophilic secondary rim functionalised permethylated β-cyclodextrin derivatives as the axle stopper groups. The rotaxane recognises halide anions in pure water with impressive selectivity over sulfate.