title: Imaging dynamics on the F + H2O -> HF + OH potential energy surfaces from wells to barriers.
abstract: The study of gas-phase reaction dynamics has advanced to a point where four-atom reactions are the proving ground for detailed comparisons between experiment and theory. Here, a combined experimental and theoretical study of the dissociation dynamics of the tetra-atomic FH2O system is presented, providing snapshots of the F + H2O → HF + OH reaction. Photoelectron-photofragment coincidence measurements of the dissociative photodetachment (DPD) of the F(-)(H2O) anion revealed various dissociation pathways along different electronic states. A distinct photoelectron spectrum of stable FH-OH complexes was also measured and attributed to long-lived Feshbach resonances. Comparison to full-dimensional quantum calculations confirms the sensitivity of the DPD measurements to the subtle dynamics on the low-lying FH2O potential energy surfaces over a wide range of nuclear configurations and energies.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
authors.forename: Rico
authors.initials: R
authors.lastname: Otto
authors.forename: Jianyi
authors.initials: J
authors.lastname: Ma
authors.forename: Amelia W
authors.initials: AW
authors.lastname: Ray
authors.forename: Jennifer S
authors.initials: JS
authors.lastname: Daluz
authors.forename: Jun
authors.initials: J
authors.lastname: Li
authors.forename: Hua
authors.initials: H
authors.lastname: Guo
authors.forename: Robert E
authors.initials: RE
authors.lastname: Continetti