Slow Photoelectron Spectroscopy of δ-Valerolactam and Its Dimer (pages 1822–1832)
Dr. Ahmed Mahjoub, Prof. Dr. Majdi Hochlaf, Priv.-Doz. Dr. Lionel Poisson, Dr. Nicolas Nieuwjaer, Dr. Frédéric Lecomte, Prof. Dr. Jean-Pierre Schermann, Priv.-Doz. Dr. Gilles Grégoire, Prof. Dr. Bruno Manil, Dr. Gustavo A. Garcia and Priv.-Doz. Dr. Laurent Nahon
Article first published online: 25 MAY 2011 | DOI: 10.1002/cphc.201100090
The single-photon ionizations of gas-phase δ-valerolactam (piperidin-2-one) and its dimer are studied using vacuum-ultraviolet synchrotron radiation coupled to a velocity map imaging electron/ion coincidence spectrometer. The slow photoelectron spectrum (SPES) of the monomer is dominated by the vibrational transitions to the state. For the dimer, a unique large band is observed.