| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5390400 | Chemical Physics Letters | 2006 | 5 Pages |
Abstract
Two-body Coulomb explosion processes of methanol (CH3OH, CD3OH, CH3OD) in an intense laser field (0.2Â PW/cm2, 60Â fs) are investigated by the coincidence momentum imaging method. The dissociation pathways with hydrogen/deuterium migration or hydrogen/deuterium exchange prior to the C-O bond breaking are securely identified. From the anisotropic angular distributions and the relative yields of the fragment ions, it is revealed that the hydrogen migration process is terminated within the period of an intense ultrashort laser pulse. A comparison of the results obtained for CH3OH and those for the isotopomers shows that the hydrogen migration is decelerated by the isotope substitution.
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Authors
Tomoya Okino, Yusuke Furukawa, Peng Liu, Takayuki Ichikawa, Ryuji Itakura, Kennosuke Hoshina, Kaoru Yamanouchi, Hidetoshi Nakano,