LINE POSITIONS AND INTENSITIES OF THE 2-NU-3-BAND, NU-1+NU-3-BAND, AND 2-NU-1-BAND OF O-18(3)

The infrared spectrum of the isotopic species 18O3 has been recorded in the 5-μm spectral region with a resolution of 0.002 cm-1 using a Fourier transform spectrometer. The three interacting bands 2ν3, ν1 + ν3, and 2ν1 of 18O3 which are absorbing in this spectral region were analyzed and the corresponding upper state levels were reproduced using a Hamiltonian matrix which takes into account the Darling-Dennison interaction between the levels of the vibrational states (002) and (200) as well as the Coriolis-type interactions between the levels of (002) and (101) and of (101) and (200). Also the measured intensities were least-squares fitted leading to precise transition moment constants. Finally a complete list of line positions, intensities, and lower state energy levels was generated. © 1991.