Showing papers by "Vl.G. Tyuterev published in 2002"
TL;DR: In this article, the authors used the generating function model to account for the anomalously strong centrifugal distortion of the rovibrational levels and resonance interactions, which has been used to assign lines to the second triad of H2O (bands ν1+ν2, ν2+ν3, and 3ν2).
73 citations
TL;DR: In this paper, the first two polyads of monodeuterated methane were simultaneously analyzed for the 3 to 5 mu m region of the line positions and intensities of the polyads.
60 citations
TL;DR: In this paper, a set of spectroscopic constants of the 16 O 3 molecule ( ω i, x ij, y ijk, γ DD, α i X, β ij X,…), which determine vibrational dependence of band centres and rotational parameters, is derived from recent accurate analysis of high-resolution experimental ro-vibrational spectra through the theoretical approach based on second-order perturbation expansions in normal coordinates accounting for Darling-Dennison resonance interactions.
28 citations
TL;DR: In this article, the 3ν 3, ν 1 + 2ν 3, 2ν 1 +ν 3 and 3ν 1 bands of ozone were measured and fitted with a r.m.s. = 6.9% (χ=1.44).
26 citations
TL;DR: In this paper, the four 5v 3 bands of 18O enriched ozone have been observed and analyzed for the first time, at a resolution of 0.008 cm−1 with a pathlength of 32.16 m. Despite the very weak absorptions observed, almost 250 energy levels have been derived for each of the 4 species, with J ⩽ 35 and K a ⩾ 13, and suitable sets of Hamiltonian parameters have been determined.
Abstract: The four 5v 3 bands of 18O enriched ozone have been observed and analysed for the first time. Two species (16O18O16O and 18O16O18O) belong to the C2v symmetry group and two other (18O18O16O and 16O16O18O) to the Cs symmetry group. They have been recorded at a resolution of 0.008 cm−1 with a pathlength of 32.16 m. Despite the very weak absorptions observed, almost 250 energy levels have been derived for each of the 4 species, with J ⩽ 35 and K a ⩽ 13, and suitable sets of Hamiltonian parameters have been determined. For 3 species it has been necessary to account for the resonance between the (005) and (311) states to correctly reproduce the spectra observed. These resonances, anharmonic for C2v, and hybrid (both anhar-monic and Coriolis) for Cs symmetry confirm the accidentally extremely strong coupling between the (005) and (311) states for 16O3, due in that case to the very close distance between unperturbed energy levels. This work also confirms the excellent prediction of band centres of these four spe...
10 citations