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Dependence on the Initial Configuration of Strong Field-Driven Isomerization of C 2 H 2 Cations and Anions.
- Source :
-
The journal of physical chemistry letters [J Phys Chem Lett] 2019 May 16; Vol. 10 (10), pp. 2320-2327. Date of Electronic Publication: 2019 Apr 25. - Publication Year :
- 2019
-
Abstract
- We have investigated the femtosecond laser-induced fragmentation of C <subscript>2</subscript> H <subscript>2</subscript> <superscript>q</superscript> ion beam targets in various initial configurations, including acetylene (linear HCCH), vinylidene (H <subscript>2</subscript> CC), and cis/ trans. The initial configuration is shown to have a tremendous impact on the branching ratio of acetylene-like (CH <superscript>q <subscript>1</subscript> </superscript> + CH <superscript>q <subscript>2</subscript> </superscript> ) and vinylidene-like (C <superscript>q <subscript>1</subscript> '</superscript> + CH <subscript>2</subscript> <superscript>q <subscript>2</subscript> '</superscript> ) dissociation of a specific C <subscript>2</subscript> H <subscript>2</subscript> <superscript>q</superscript> molecular ion. In particular, whereas C <subscript>2</subscript> H <subscript>2</subscript> <superscript>+</superscript> generated from C <subscript>2</subscript> H <subscript>2</subscript> , a linear HCCH target, exhibits comparable levels of acetylene-like and vinylidene-like fragmentation, vinylidene or cis/ trans configuration ion beams preferably undergo vinylidene-like fragmentation, with an acetylene branching ratio ranging from 13.9% to zero.
Details
- Language :
- English
- ISSN :
- 1948-7185
- Volume :
- 10
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- The journal of physical chemistry letters
- Publication Type :
- Academic Journal
- Accession number :
- 31002520
- Full Text :
- https://doi.org/10.1021/acs.jpclett.9b00520