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Multiple Explosion Pathways of the Deuterated Benzene Trication in 9-fs Intense Laser Fields
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
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2009 (English)In: Journal of Physical Chemistry A, ISSN 1089-5639, E-ISSN 1520-5215, Vol. 113, no 11, 2254-2260 p.Article in journal (Refereed) Published
Abstract [en]

The fragmentation of deuterated benzene (CA) in ultrashort intense laser fields (9 fs, 1 x 10(15) W/cm(2)) is studied by the ion-coincidence momentum imaging technique. Five two-body and eight three-body Coulomb explosion pathways from the trication (C6D63+), associated with the deprotonation and ring-opening reactions, are identified. It is found from the fragment momentum correlation that all the observed three-body explosion processes proceed sequentially via the two-body Coulomb explosion forming molecular dications, CmDn2+, with (m,n) = (6,5), (5,5), (5,4), (4,4), (4,3), and (3,3), which further dissociate into pairs of monocations. The branching ratio of the fragmentation pathways estimated from the number of the observed coincidence events indicates that the fragmentation is nonstatistical.

Place, publisher, year, edition, pages
2009. Vol. 113, no 11, 2254-2260 p.
Keyword [en]
potential-energy surface, coulomb explosion, charged benzene, molecules, dissociation, dynamics, ion, ionization, cs2, fragmentation
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-60253DOI: 10.1021/jp806466xISI: 000264111000003OAI: oai:DiVA.org:su-60253DiVA: diva2:433980
Note
authorCount :5Available from: 2011-08-12 Created: 2011-08-11 Last updated: 2017-12-08Bibliographically approved

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Thomas, Richard D.Zhaunerchyk, Vitali
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