title: Production of vibrationally excited H(2)O from charge exchange of H(3)O(+) with cesium.
abstract: The center-of-mass kinetic energy release for the dissociation of H(3)O following charge exchange of H(3)O(+) with cesium has been studied experimentally and modeled using quasiclassical trajectory calculations based on an ab initio potential energy surface for H(3)O(+) and "direct dynamics" for H(3)O. Branching fractions for the H(2)O+H and OH+H(2) dissociation channels have been measured and compared to the calculations. The dominant channel is found to be H(2)O+H and the experimental kinetic energy release spectrum reveals that H(2)O is formed with a vibrational inversion in stretching vibrations, coupled with low bending and rotational excitation.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0340, USA.
authors.forename: Jennifer E
authors.initials: JE
authors.lastname: Mann
authors.forename: Zhen
authors.initials: Z
authors.lastname: Xie
authors.forename: John D
authors.initials: JD
authors.lastname: Savee
authors.forename: Joel M
authors.initials: JM
authors.lastname: Bowman
authors.forename: Robert E
authors.initials: RE
authors.lastname: Continetti
mesh_terms: D002586:Cesium / Q000737:chemistry*; D003198:Computer Simulation; D006859:Hydrogen / Q000737:chemistry; D007700:Kinetics; D008958:Models, Molecular; D011789:Quantum Theory; D014316:Tritium / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water; D014316:Tritium; D002586:Cesium; D006859:Hydrogen