The Renner-Teller effect observed in the and electronic states of H2S+

In 1995, Balzer etal. recorded a well-resolved photoelectron spectrum of the outer valence region of H2S between 12.7 and 14.5eV. The vibronic energies were identified with the aid of calculated ionisation potentials. Following on from this, vacuum ultraviolet pulsed-field ionisation spectroscopy was used by Hochlaf etal. in 2004 to record partially resolved rotational spectra of H2S+. Finally, in 2010, Han, Kang and Kim recorded rotationally resolved electronic spectra of the [GRAPHICS] transitions of H2S+ above the barrier to linearity, by use of mass-analysed threshold ionisation photo-fragment excitation spectroscopy. By making use of new high-resolution jet-cooled electronic spectra recorded in Basel, and the rotational analyses carried out in 1972 and 1983, the different methods have been linked to provide a detailed picture of the relationship between the four different types of spectroscopy.