title: Study of RgS- and RgS (Rg = Ne, Ar, and Kr) via slow photoelectron velocity-map imaging spectroscopy and ab initio calculations.
abstract: High-resolution photoelectron spectra of RgS(-) (Rg = Ne, Ar, and Kr) were obtained using slow electron velocity-map imaging (SEVI). The SEVI spectra reveal well-resolved vibrational transitions between multiple spin-orbit states of RgS(-) and RgS, both of which are open-shell species. Detailed assignments are made by comparison with theoretical simulations based on high level ab initio calculations and a atoms-in-molecule model that accounts for spin-orbit coupling in the anion and neutral. Several RgS(-) and RgS vibrational frequencies and excited-state term energies are accurately determined from the analysis of the experimental spectra and are found to be in excellent agreement with the calculated values.
authors.affiliation: Department of Chemistry, University of California, Berkeley, California 94720, USA.
authors.forename: Etienne
authors.initials: E
authors.lastname: Garand
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Neumark
mesh_terms: D000838:Anions / Q000737:chemistry; D001128:Argon / Q000737:chemistry*; D004583:Electrons; D005740:Gases / Q000737:chemistry; D007726:Krypton / Q000737:chemistry*; D009356:Neon / Q000737:chemistry*; D056951:Photoelectron Spectroscopy / Q000379:methods*; D013440:Sulfides / Q000737:chemistry*
chemical_list: D000838:Anions; D005740:Gases; D013440:Sulfides; D009356:Neon; D007726:Krypton; D001128:Argon