5 research outputs found
Fine and hyperfine resolved empirical energy levels of VO
A MARVEL (measured active rotational-vibrational energy levels) analysis of the spectra of vanadium oxide (VO) is performed, involving thirteen electronic states (6 quartets and 7 doublets). VO data from 14 sources are used to form three networks: hyperfine-resolved quartets, hyperfine-unresolved quartets and hyperfine-unresolved doublets. A single quartet network is formed by deperturbing the hyperfine lines and 191 lines are assigned to an intercombination 2 –X band system in the visible region previously recorded by Hopkins et al. (J. Chem. Phys. 130 (2009) 144308), allowing the doublet and quartet networks to be merged. As a result 6 603/4 402 validated transitions/final energies were obtained from analysis of the hyperfine-resolved network and 9 087/4 712 from the unresolved. energy values and other molecular constants are determined for all doublet states within the networks
ExoMol line lists – L: high-resolution line lists of H3+, H2D+, D2H+, and D3+
New MiZo line lists are presented for the D2H+ and D isotopologues of H. These line lists plus the existing H MiZATeP and the Sochi H2D+ line lists are updated using empirical energy levels generated using the MARVEL procedure for H, H2D+ and D2H+, and effective Hamiltonian energies for D for which there is significantly less laboratory data available. These updates allow accurate frequencies for far infrared lines for these species to be predicted. Assignments of the energy levels of H and D are extended using a combination of high accuracy variational calculations and analysis of transition intensities. All line lists are made available via www.exomol.com