title: Efficient ejection of H3(+) from hydrocarbon molecules induced by ultrashort intense laser fields.
abstract: The ejection processes of hydrogen molecular ion H(3)(+) from 12 kinds of hydrocarbon molecular species, methanol, ethanol, 1-propanol, 2-propanol, acetone, acetaldehyde, methane, ethane, ethylene, allene, 1,3-butadiene, and cyclohexane, induced by intense laser fields (approximately 10(14) W/cm(2)) have been investigated by time-of-flight mass spectroscopy. The observation of the H(3)(+) production with the kinetic energy range of 3.5-5.0 eV from doubly ionized ethylene, allene, 1,3-butadiene, and cyclohexane, which have no methyl groups, showed the existence of the ultrafast hydrogen migration processes that enables three hydrogen atoms to come together to form H(3)(+) within a hydrocarbon molecule.
authors.affiliation: Department of Pharmacy, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata-shi 956-8603, Japan.
authors.forename: Kennosuke
authors.initials: K
authors.lastname: Hoshina
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Furukawa
authors.forename: Tomoya
authors.initials: T
authors.lastname: Okino
authors.forename: Kaoru
authors.initials: K
authors.lastname: Yamanouchi
mesh_terms: D006838:Hydrocarbons / Q000737:chemistry*; D007700:Kinetics; D007834:Lasers; D013058:Mass Spectrometry; D014316:Tritium / Q000737:chemistry*
chemical_list: D006838:Hydrocarbons; D014316:Tritium