title: Cucurbituril slippage: cations as supramolecular lubricants.
abstract: The dethreading rate of a polyaminated axle flanked by two benzo-15-crown-5 stoppers from the cavity of Cucurbit[7]uril (CB[7]) was enhanced by up to 500 times in the presence of aqueous metallic and organic cations. Cations likely stabilize the highest energy transition state of the dethreading process by interacting with both crown ether and CB[7] units.
authors.affiliation: Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio 45701, USA.
authors.forename: Xiaoxi
authors.initials: X
authors.lastname: Ling
authors.forename: Eric
authors.initials: E
authors.lastname: Masson