MPI spectroscopy in the region of the 3p Rydberg state of some cycloketones

Article abstract of DOI:10.1016/0022-2860(92)80058-P

The two-photon resonance three photon ionization spectra of cyclopentanone, cyclohexanone and cycloheptanone in the region of the 3p Rydberg state have been recorded, analysed and compared with the one-photon absorption spectra.A new 3p origin is identified for cyclopentanone.The absence from the MPI spectra of a sharp spectral feature that is observed in the absorption spectra is discussed.Photochemical generation of acetaldehyde is observed at high laser intensities and possible mechanisms for this are considered.