Line positions and intensities of the 3 upsilon(1)+upsilon(3) band of ozone

Infrared spectra of O-16(3) have been recorded in the 4250 cm(-1) region with a Fourier transform spectrometer, at 0.008 cm(-1) resolution, using a White-type cell l = 36.16 m filled with 42.8 Torr O-3. This spectral region corresponds to the 3v(1) + v(3) band, which has never been observed before. The assignment of this band has been performed up to J = 43 and K-a = 13. To correctly reproduce the obtained energy levels of (301), it has been necessary to introduce the (230) dark state, interacting with (301) through Coriolis resonance. With the Hamiltonian for these two vibrational states, the fit on the 282 energy levels results in the RMS = 1.8 x 10(-3) cm(-1), on the order of the experimental precision. Line intensities of the 3v(1) + v(3) are measured and calculated. We report here the set of molecular parameters and transition moment constants. A complete list of lire positions and intensities with the cutoff of 1 x 10(-26) cm(-1)/molecule . cm(-2) at 295 K up to J = 55 and K-a = 17 has been generated, covering the region 4170-4265 cm(-1). (C) 1996 Academic Press, Inc.