Fine and hyperfine resolved empirical energy levels of VO

• A MARVEL analysis of 6 quartet and 7 doublet states VO yields 4641 empirical energy levels. separate hyperfine-resolved transitions gives 4393 levels with hyperfine structure. 191 lines are assigned the 2 ? - X 4 ? intercombination band system. (measured active rotational-vibrational levels) spectra vanadium oxide (VO) is performed, involving thirteen electronic (6 quartets doublets). 51 V 16 O data from 14 sources used to form three networks: quartets, hyperfine-unresolved doublets. single network formed by deperturbing 190 an –X ? system in visible region previously recorded Hopkins et al. (J. Chem. Phys. 130 (2009) 144308), allowing networks be merged. As a result 603/4 402 validated transitions/final energies were obtained 9 087/4 712 unresolved. T v values other molecular constants determined for all within networks.