Knowledge Bank

Using $0.002cm-1$ Fourier transform absorption spectra of $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O-$ enriched sample of ozone, an extensive analysis of the $\nu 3$ band together with a partial identification of the $\nu 1$ band of the $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O17O16O$ and $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O16O17O$ isotopic species of ozone has been performed in the $10\mu m$ region. The experimental rotational levels of the (001) and (100) vibrational states could be reproduced using an Hamiltonian matrix which takes into account the expected rovibrational resonances. As for the other $Cs$ -type ozone $isotopomersa$, the (001) rotational levels of $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O17O16O$ are involved in both Coriolis and Fermi type resonances with the levels from the (100) vibrational state. On the other hand, for the $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O16O17OC2v$ -type isotopomer, only C-type Coriolis resonances have to be considered. Using an Hamiltonian matrix which takes into account these resonances for the (001)-(100) off- diagonal blocks, and an A-type Watson operator for the diagonal blocks, precise vibrational energies and rotational and coupling constants are deduced.