Photophysics of the acetone 3p Rydberg states utilizing two-photon resonant ionization spectroscopy Original Research Article

The 3p ← n Rydberg transitions of acetone(CH3COCH3) and deuterium acetone(CD3COCD3) have been carefully investigated using mass resolved two-photon resonant ionization spectroscopy with a jet-cooled molecular beam utilizing linear and circular polarized light. The symmetry of 3p acetone vibronic states have been reanalyzed. The experimental results suggest that the symmetries of the acetone 3p Rydberg state deviates from C2v due to the Rydberg-Valence interaction. The correlations between the symmetry change and dissociation of the acetone ions are discussed.