First steps towards dissolution of NaSO4- by water.
Winter, B.; Faubel, M.; Hertel, I. V. etc.,
Journal of the American Chemical Society, 128  3864 - 3865 (2006)
The electronic structure of hydrated H3O+ and OH- is probed in a water jet by photoelectron spectroscopy employing 100 eV photons. The first ionization potential for OH- at 9.2 eV and the second ionization potential for H3O+ at 20 eV are resolved, corresponding to the removal of an electron from the 2p highest occupied molecular orbital and from the 1e orbital, respectively. These assignments are supported by present computational results based on a combination of molecular dynamics and ab initio calculations.