The near infrared, visible, and near ultraviolet overtone spectrum of water

New long path length, high resolution, Fourier transform spectrometer measu rements for water are presented. These spectra cover the near infrared, vis ible, and near ultraviolet regions and contain water transitions belonging to all polyads from 3 nu to 8 nu. Transitions in the range 13 100-21 400 cm (-1) are analyzed using line lists computed using variational first-princip les calculations. 2286 new transitions are assigned to (H2O)-O-16. These re sult in the observation of transitions in 15 new overtone and combination b ands of water. Energy levels for these and other newly observed levels are presented. It is suggested that local mode rather than normal mode vibratio nal assignments are more appropriate for the vibrational states of water in polyads 4 nu and above. (C) 1999 American Institute of Physics. [S0021-960 6(99)00830-2].