Analysis of High-Resolution Spectra of 18O3

High-Resolution IR Spectra of 18O-Enriched Ozone: Band Centers of 16O16O18O, 16O18O18O, 18O16O18O, and 16O18O16O

“…Recently reported analysis of 14 bands of 18 O 3 (3,4) at high resolution has confirmed the validity of the potential function of Ref. (2) for complete isotopic substitution.…”

“…As in the previous studies of 16 O 3 (1) and 18 O 3 (3,4), the rotational analysis has been performed using effective Hamiltonians for strongly interacting vibrational states where the diagonal blocks have the standard Watson's form and the off-diagonal blocks account for Coriolis and Darling-Dennison resonances arising from the similarity of the 1 and 3 harmonic frequencies (1, 2). Because of the lower symmetry of the C s isotopic species, the off-diagonal blocks of the Hamiltonian matrices contain both Coriolis-and anharmonictype terms (8).…”

“…(3,4), a new code for assignments, based on ground state combination differences, has been used which has allowed us to assign the strongest in P and R lines for K ϭ 0, 1, and 2. The well-known procedure of new fits and assignments leads to the final assignment of most of the observable transitions and accounts for the various resonances.…”

Analysis of High-Resolution Spectra of 18O3

“…Here we present high-resolution infrared spectra of 18 O 3 in the region 1300-3100 cm −1 , the spectral range above 3100 being presented in Part 2 (32). The large product p × enables us to analyze the rovibrational structure of 14 vibrational states, 11 being observed for the first time.…”

High-Resolution Infrared Spectra of the 16O18O16O Ozone Isotopomer in the Range 900–5000 cm−1: Line Positions

“…Analysis of spectra has been carried out according to the usual procedure (20)(21)(22) of successive line assignments and fits of effective Hamiltonian parameters until a satisfactory root mean squares (R.M.S.) deviation with observed data is achieved.…”