The 10-μm Bands of the 17O3 Isotopic Species of Ozone

Abstract

Using high-resolution (R ∼ 0.002 cm−1) Fourier transform spectra of ozone containing about 20% of 17O3 isotopic species, it has been possible to observe and assign the {ν1, ν3} bands of 17O3 up to very high rotational quantum numbers. For this analysis, we used the ground state energy levels calculated from the (000) rotational constants obtained for 17O3 in a recent microwave study performed by J.-M. Colmont (submitted for publication). Then, from the {(100), (001)} rotational energy levels derived in the present work, a set of molecular parameters (vibrational band centers and rotational and coupling constants) for the {(100), (001)} interacting states of 17O3 has been determined using a Hamiltonian matrix which explicitly takes into account the (100) ↔ (001) Coriolis interaction. Finally, using transition moments derived theoretically from those of 16O3, a synthetic spectrum (line positions and intensities) of the ν1 and ν3 bands has been generated.