Approaching the full set of energy levels of water.
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.
Maksyutenko
Pavlo
P
Laboratoire de Chimie Physique Moléculaire, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland.
Muenter
John S
JS
Zobov
Nikolai F
NF
Shirin
Sergei V
SV
Polyansky
Oleg L
OL
Rizzo
Thomas R
TR
Boyarkin
Oleg V
OV
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*
D014867:Water