Hoshina Kennosuke, Furukawa Yusuke, Okino Tomoya, Yamanouchi Kaoru
Department of Pharmacy, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata-shi 956-8603, Japan.
J Chem Phys. 2008 Sep 14;129(10):104302. doi: 10.1063/1.2973588.
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.
利用飞行时间质谱技术研究了在强激光场（约10¹⁴W/cm²）作用下，12种烃类分子物种（甲醇、乙醇、1-丙醇、2-丙醇、丙酮、乙醛、甲烷、乙烷、乙烯、丙二烯、1,3-丁二烯和环己烷）中氢分子离子H₃⁺的喷射过程。对来自没有甲基的双电离乙烯、丙二烯、1,3-丁二烯和环己烷的动能范围为3.5 - 5.0 eV的H₃⁺产生的观测表明，存在超快氢迁移过程，该过程能使三个氢原子在烃分子内聚集形成H₃⁺。
