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Time-resolved relax...
Time-resolved relaxation and fragmentation of polycyclic aromatic hydrocarbons investigated in the ultrafast XUV-IR regime
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- Lee, J. W.L. (author)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,University of Hamburg,German Electron Synchrotron (DESY)
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- Tikhonov, D. S. (author)
- German Electron Synchrotron (DESY),University of Kiel
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- Chopra, P. (author)
- German Electron Synchrotron (DESY),University of Kiel
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- Maclot, Sylvain, 1986 (author)
- University of Gothenburg,Lund University,Lunds universitet,Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Steber, A. L. (author)
- University of Kiel,University of Hamburg,German Electron Synchrotron (DESY)
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- Gruet, S. (author)
- German Electron Synchrotron (DESY)
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- Allum, F. (author)
- University of Oxford
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- Boll, R. (author)
- European XFEL GmbH
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- Cheng, X. (author)
- German Electron Synchrotron (DESY)
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Dusterer, S. (author)
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- Erk, B. (author)
- German Electron Synchrotron (DESY)
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- Garg, D. (author)
- University of Hamburg,German Electron Synchrotron (DESY)
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- He, L. (author)
- German Electron Synchrotron (DESY)
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- Heathcote, D. (author)
- University of Oxford
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- Johny, M. (author)
- German Electron Synchrotron (DESY)
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- Kazemi, M. M. (author)
- German Electron Synchrotron (DESY)
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- Kockert, H. (author)
- University of Oxford
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Lahl, J. (author)
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- Lemmens, A. K. (author)
- Radboud University Nijmegen,Academic Medical Center of University of Amsterdam (AMC)
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- Loru, D. (author)
- University of Kiel,German Electron Synchrotron (DESY)
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- Mason, R. (author)
- University of Oxford,Radboud University Nijmegen,Vrije Universiteit Amsterdam
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- Muller, E. (author)
- German Electron Synchrotron (DESY)
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- Mullins, T. (author)
- German Electron Synchrotron (DESY)
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- Olshin, P. (author)
- Saint Petersburg State University
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Passow, C. (author)
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- Peschel, J. (author)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Ramm, D. (author)
- German Electron Synchrotron (DESY)
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- Rompotis, D. (author)
- German Electron Synchrotron (DESY),European XFEL GmbH
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- Schirmel, N. (author)
- German Electron Synchrotron (DESY)
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- Trippel, S. (author)
- German Electron Synchrotron (DESY),University of Hamburg
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Wiese, J. (author)
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- Ziaee, F. (author)
- Kansas State University
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- Bari, S. (author)
- German Electron Synchrotron (DESY)
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- Burt, M. (author)
- University of Oxford,German Electron Synchrotron (DESY)
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- Kupper, J. (author)
- German Electron Synchrotron (DESY),University of Hamburg
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Rijs, A. M. (author)
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- Rolles, D. (author)
- Kansas State University
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- Techert, S. (author)
- German Electron Synchrotron (DESY),University of Göttingen
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Eng-Johnsson, P. (author)
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- Brouard, M. (author)
- University of Oxford
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- Vallance, C. (author)
- University of Oxford
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Manschwetus, B. (author)
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- Schnell, M. (author)
- University of Kiel,German Electron Synchrotron (DESY)
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(creator_code:org_t)
- 2021-10-20
- 2021
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 12:1
- Related links:
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http://dx.doi.org/10... (free)
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Subject headings
Close
- Polycyclic aromatic hydrocarbons (PAHs) play an important role in interstellar chemistry and are subject to high energy photons that can induce excitation, ionization, and fragmentation. Previous studies have demonstrated electronic relaxation of parent PAH monocations over 10-100 femtoseconds as a result of beyond-Born-Oppenheimer coupling between the electronic and nuclear dynamics. Here, we investigate three PAH molecules: fluorene, phenanthrene, and pyrene, using ultrafast XUV and IR laser pulses. Simultaneous measurements of the ion yields, ion momenta, and electron momenta as a function of laser pulse delay allow a detailed insight into the various molecular processes. We report relaxation times for the electronically excited PAH*, PAH(+*) and PAH(2+*) states, and show the time-dependent conversion between fragmentation pathways. Additionally, using recoil-frame covariance analysis between ion images, we demonstrate that the dissociation of the PAH(2+) ions favors reaction pathways involving two-body breakup and/or loss of neutral fragments totaling an even number of carbon atoms. Polycyclic aromatic hydrocarbons play an important role in interstellar chemistry, where interaction with high energy photons can induce ionization and fragmentation reactions. Here the authors, with XUV-IR pump-probe experiments, investigate the ultrafast photoinduced dynamics of fluorene, phenanthrene and pyrene, providing insight into their preferred reaction channels.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- extreme-ultraviolet
- molecular-dynamics
- hartree-fock
- basis-sets
- electron
- dications
- photoelectron
- dissociation
- spectroscopy
- naphthalene
- Science & Technology - Other Topics
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Lee, J. W.L.
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Tikhonov, D. S.
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Chopra, P.
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Maclot, Sylvain, ...
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Steber, A. L.
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Gruet, S.
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show more...
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Allum, F.
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Boll, R.
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Cheng, X.
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Dusterer, S.
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Erk, B.
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Garg, D.
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He, L.
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Heathcote, D.
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Johny, M.
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Kazemi, M. M.
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Kockert, H.
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Lahl, J.
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Lemmens, A. K.
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Loru, D.
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Mason, R.
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Muller, E.
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Mullins, T.
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Olshin, P.
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Passow, C.
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Peschel, J.
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Ramm, D.
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Rompotis, D.
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Schirmel, N.
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Trippel, S.
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Wiese, J.
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Ziaee, F.
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Bari, S.
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Burt, M.
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Kupper, J.
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Rijs, A. M.
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Rolles, D.
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Techert, S.
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Eng-Johnsson, P.
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Brouard, M.
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Vallance, C.
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Manschwetus, B.
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Schnell, M.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
- Articles in the publication
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Nature Communica ...
- By the university
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University of Gothenburg
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Lund University