Article

Two-proton migration in 1,3-butadiene in intense laser fields.

Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Physical Chemistry Chemical Physics (impact factor: 3.57). 10/2010; 12(40):12939-42. DOI:10.1039/c0cp00628a pp.12939-42
Source: PubMed

ABSTRACT Ultrafast proton migration in 1,3-butadiene in an intense laser field (40 fs, 4.5 × 10(14) W cm(-2)) is investigated by using Coulomb explosion coincidence momentum imaging. The spatial distribution maps of a migrating proton reconstructed for the two three-body Coulomb explosion pathways, C(4)H(6)(3+)→ H(+) + CH(3)(+) + C(3)H(2)(+) and C(4)H(6)(3+)→ H(+) + C(2)H(+) + C(2)H(4)(+), reveal that two protons migrate within a 1,3-butadiene molecule, prior to the three body decomposition.

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Keywords

Coulomb explosion coincidence momentum imaging
 
intense laser field
 
migrating proton reconstructed
 
two protons migrate
 
two three-body Coulomb explosion pathways