title: Concerted proton migration along short hydrogen bonded water bridges in bipyridine-water clusters.
abstract: The outcome of reactions between D(2)O and size-selected ionic clusters of the type MH(+)(H(2)O)(n) (M = bipyridine, n = 1-30) shows that H-D-exchange is significantly higher for 2,2'-bipyridines than for 4,4'-bipyridines. This gives strong support for the idea that the existence of short water wires between the two nitrogen sites is essential to proton migration in water clusters containing basic sites.
authors.affiliation: Mass Spectrometry Laboratory and Centre of Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, POB 1033 Blindern, N-0315 Oslo, Norway.
authors.forename: Alexey Sergeevich
authors.initials: AS
authors.lastname: Zatula
authors.forename: Mauritz Johan
authors.initials: MJ
authors.lastname: Ryding
authors.forename: Einar
authors.initials: E
authors.lastname: Uggerud