title: Approaching the full set of energy levels of water.
abstract: We report here the measurements of rovibrational levels in the electronic ground state of water molecule at the previously inaccessible energies above 26,000 cm(-1). The use of laser double-resonance overtone excitation extends this limit to 34,200 cm(-1), which corresponds to 83% of the water dissociation energy. We use experimental data to generate a semiempirical potential energy surface that now allows prediction of water levels with sub-cm(-1) accuracy at any energy up to the new limit.
authors.affiliation: Laboratoire de Chimie Physique Moléculaire, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland.
authors.forename: Pavlo
authors.initials: P
authors.lastname: Maksyutenko
authors.forename: John S
authors.initials: JS
authors.lastname: Muenter
authors.forename: Nikolai F
authors.initials: NF
authors.lastname: Zobov
authors.forename: Sergei V
authors.initials: SV
authors.lastname: Shirin
authors.forename: Oleg L
authors.initials: OL
authors.lastname: Polyansky
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Rizzo
authors.forename: Oleg V
authors.initials: OV
authors.lastname: Boyarkin
mesh_terms: D000465:Algorithms; D002627:Chemistry, Physical / Q000379:methods*; D004581:Electronics; D015233:Models, Statistical; D008962:Models, Theoretical; D017785:Photons; D015203:Reproducibility of Results; D013816:Thermodynamics; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water