The Hybrid-Type Bands ν1 and ν3 of 16O 16O 17O Line Positions and Intensities

Abstract A study of 0.005 cm −1 resolution room temperature absorption spectra of 17 O-enriched ozone around 10 μm has been performed leading to a thorough analysis of the hybrid ν 1 and ν 3 bands of 16 O 16 O 17 O. The experimental rotational levels af the interacting states (001) and (100) were reproduced using a Hamiltonian taking fully into account the rovibratianal interactions. Precise vibrational energies and rotational and coupling constants were deduced and the following band centers were determined: ν 0 (ν 1 ) = 1095.69309 cm −1 and ν 0 (ν 3 ) = 1035.35869 cm −1 . Using the 16 O 17 O 16 O line intensities calculated previously and assuming a factor of 2 between the abundances of 16 O 16 O 17 O and 16 O 17 O 16 O, the amount of 16 O 16 O 17 O in the cell was evaluated and used to derive the line intensities for this latter species. Then the experimental intensities were least squares fitted, leading to the determination of the transition moment constants of the ν 1 and ν 3 bands of 16 O 16 O 17 O. Finally a complete spectrum of these bands has been computed.