title: Reducing Molecular Shuttling to a Single Dimension.
abstract: An analogy with a cart on a roller coaster partially explains the shuttling motion of macrocycles in peptide rotaxanes. Just above the barrier to shuttling, the macrocycle statistically populates the "track" rather than the low-energy "stations" (see the potential energy curve). The dynamics of the movement is described in terms of a simplified one-dimensional model based on the solution of the relevant quantum-mechanical equation. x=position.
authors.affiliation: Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna V. F. Selmi 2, 40126, Bologna (Italy).
authors.initials: DA
authors.lastname: Leigh
authors.initials: A
authors.lastname: Troisi
authors.initials: F
authors.lastname: Zerbetto