Vibronic structure in the low lying Rydberg states of hexafluorobenzene and 1,3,5-trifluorobenzene detected by two-photon spectroscopy

► Two-photon spectra of jet-cooled hexafluorobenzene and sym-trifluorobenzene ► Rydberg states ► Vibrational structure, Jahn-Teller effect