The ν3 bands of 17O17O18O and 17O18O17O ozone isotopomers

This work continues the investigation of high resolution infrared spectra of O-17 and O-1(8) enriched ozone isotopomers in the 10 mu m spectral range. Spectra are recorded by the Reims Fourier Transform Spectrometer. In a mixture of 18 isotopic species of ozone including O-17, O-16 and O-1(8) oxygen atoms, two nu 3 bands are analyzed for the first time: those of (OOO)-O-17-O-1-O-7-O-1-O-8 and (OOO)-O-1-O-7-O-18-O-1-O-7 species. The analyses, performed accounting for interactions between the (100) and (001) states, permitted to assign 769 transitions for (OOO)-O-1-O-7-O-18-O-1-O-7 and 1290 for (OOO)-O-17-O-1-O-7-O-1-O-8. The resulting sets of effective Hamiltonian parameters allow reproducing observed transitions within experimental accuracies and calculating synthetic spectra in excellent agreement with the observed ones. We also report here the comparison of main fitted parameters with recent theoretical predictions. (C) 2019 Elsevier Ltd. All rights reserved.