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

Authors:

1 January 2010

journal article
research article
Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics

Vol. 12 (40) , 12939-12942
DOI:10.1039/c0cp00628a
PMID:20730238

Abstract

Ultrafast proton migration in 1,3-butadiene in an intense laser field (40 fs, 4.5 × 10¹⁴ 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, C₄H₆ ³⁺ → H⁺ + CH₃ ⁺ + C₃H₂ ⁺ and C₄H₆ ³⁺ → H⁺ + C₂H⁺ + C₂H₄ ⁺, reveal that two protons migrate within a 1,3-butadiene molecule, prior to the three body decomposition.

Keywords

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