Journal Article

PUBDB-2017-00169

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Ultrafast electron diffraction imaging of bond breaking in di-ionized acetylene

Wolter, B. ; Pullen, M. G. ; Le, A.-T. ; Baudisch, M. ; Doblhoff-Dier, K. ; Senftleben, A.Extern* ; Hemmer, M.CFEL*DESY* ; Schröter, C. D.Extern* ; Ullrich, J.MPG* ; Pfeifer, T.Extern* ; Moshammer, R.Extern* ; Gräfe, S. ; Vendrell, O.CFEL*DESY* ; Lin, C. D. ; Biegert, J. (Corresponding author)

2016
American Association for the Advancement of Science16205 Washington, DC [u.a.]

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Please use a persistent id in citations: doi:10.1126/science.aah3429

Abstract: Visualizing chemical reactions as they occur requires atomic spatial and femtosecond temporal resolution. Here, we report imaging of the molecular structure of acetylene (C$_2$H$_2$) 9 femtoseconds after ionization. Using mid-infrared laser–induced electron diffraction (LIED), we obtained snapshots as a proton departs the [C$_2$H$_2$]$^{2+}$ ion. By introducing an additional laser field, we also demonstrate control over the ultrafast dissociation process and resolve different bond dynamics for molecules oriented parallel versus perpendicular to the LIED field. These measurements are in excellent agreement with a quantum chemical description of field-dressed molecular dynamics.

Note: © American Association for the Advancement of Science; Post referee fulltext in progress; Embargo: Immediately after publishing

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Contributing Institute(s):

1. CFEL-Theory (FS-CFEL-3)
2. FS-CFEL-2 (CFEL-UFOX)

Research Program(s):

1. 6211 - Extreme States of Matter: From Cold Ions to Hot Plasmas (POF3-621) (POF3-621)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2016

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Database coverage:
; BIOSIS Previews ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 30 ; JCR ; NCBI Molecular Biology Database ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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