Analysis of the 2 nu(1)+nu(2)+2 nu(3) band of ozone

The 2 nu(1) + nu(2) + 2 nu(3) band of ozone, occurring in the 4780 cm(-1) region, has been observed for the first time, using a Fourier transform spectrometer, at 0.008 cm(-1) resolution and using a large path length pressure product. Assignments of vibration-rotational transitions have been made up to J = 48 and K-a = 9. As a few levels with K-a = 1 or 2 are perturbed, it has been necessary to take into account the Coriolis resonance between the (212) and (141) vibrational states. With the effective Hamiltonian explicitly accounting for the interaction between these two states, the fit on 165 energy levels leads to the rms deviation of 1.9 x 10(-3) cm(-1), which is near the experimental accuracy. Line intensities of the 2 nu(1) + nu(2) + 2 nu(3) band have been measured and calculated. The set of spectroscopic parameters for interacting bands, as well as transition moment constants, is given. A complete list of line positions and intensities, with a cutoff of 1 x 10(-26) cm(-1)/molecule.cm(-2) at 296 K up to J = 65 and K-a = 15, has been generated, which leads to the integrated band intensity S-nu(2 nu(1) + nu(2) + 2 nu(3)) = (5.1 +/- 2.0) x 10(-23) cm(-1)/molecule.cm(-2). (C) 1997 Academic Press.