title: A vacuum ultraviolet photoionization mass spectrometric study of acetone.
abstract: The photoionization and dissociative photoionization of acetone have been studied at the photon energy range of 8-20 eV. Photoionization efficiency spectra for ions CH3COCH3+, CH3+, C2H3+, C3H3+, C3H5+, CH(2-)CO+, CH3CO+, C3H4O+, and CH3COCH2+ have been measured. In addition, the energetics of the dissociative photoionization has been examined by ab initio Gaussian-3 (G3) calculations. The computational results are useful in establishing the dissociation channels near the ionization thresholds. With the help of G3 results, the dissociation channels for the formation of the fragment ions CH3CO+, CH2CO+, CH3+, C3H3+, and CH3COCH2+ have been established. The G3 results are in fair to excellent agreement with the experimental data.
authors.affiliation: National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China.
authors.forename: Lixia
authors.initials: L
authors.lastname: Wei
authors.forename: Bin
authors.initials: B
authors.lastname: Yang
authors.forename: Rui
authors.initials: R
authors.lastname: Yang
authors.forename: Chaoqun
authors.initials: C
authors.lastname: Huang
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Xiaobin
authors.initials: X
authors.lastname: Shan
authors.forename: Liusi
authors.initials: L
authors.lastname: Sheng
authors.forename: Yunwu
authors.initials: Y
authors.lastname: Zhang
authors.forename: Fei
authors.initials: F
authors.lastname: Qi
authors.forename: Chow-Shing
authors.initials: CS
authors.lastname: Lam
authors.forename: Wai-Kee
authors.initials: WK
authors.lastname: Li