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Time-resolved dynamics of thiophene dication - Probing parent molecule survival times and multi-step dissociation processes of cyclic molecules by free-electron-laser experiments combined with theoretical simulations

Kukk, E. ; Fukuzawa, H. ; Nagaya, K. ; Niskanen, J. ; Luo, Y. ; Peschel, J. LU ; Kooser, K. ; Itl, E. ; Pelimanni, E. and Saito, S. , et al. (2020) 31st International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2019 In Journal of Physics: Conference Series 1412.
Abstract

Thiophene is a cyclic molecule that becomes unstable as a molecular dication. We followed the multi-step dissociation dynamics triggered by soft x-ray FEL pulses from SACLA, core-ionizing the S 2p orbital and creating parent dications by the Auger decay. The time-evolution was probed by optical laser pulsesthat reveal the survival lifetime of the parent dication and the build-up of fragmentation proceeding by ring opening and rupture, accompanied by hydrogen ejection and secondary dissociation. Experimental results are compared to statistical analysis of molecular dynamics simulations.

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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Free Electron Laser
series title
Journal of Physics: Conference Series
volume
1412
article number
112007
publisher
IOP Publishing
conference name
31st International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2019
conference location
Deauville, France
conference dates
2019-07-23 - 2019-07-30
external identifiers
  • scopus:85088096205
ISSN
1742-6588
DOI
10.1088/1742-6596/1412/11/112007
language
English
LU publication?
yes
id
2815d190-79b7-4a26-a734-bae7df2448be
date added to LUP
2020-07-29 14:17:50
date last changed
2020-08-05 05:48:37
@inproceedings{2815d190-79b7-4a26-a734-bae7df2448be,
  abstract     = {<p>Thiophene is a cyclic molecule that becomes unstable as a molecular dication. We followed the multi-step dissociation dynamics triggered by soft x-ray FEL pulses from SACLA, core-ionizing the S 2p orbital and creating parent dications by the Auger decay. The time-evolution was probed by optical laser pulsesthat reveal the survival lifetime of the parent dication and the build-up of fragmentation proceeding by ring opening and rupture, accompanied by hydrogen ejection and secondary dissociation. Experimental results are compared to statistical analysis of molecular dynamics simulations.</p>},
  author       = {Kukk, E. and Fukuzawa, H. and Nagaya, K. and Niskanen, J. and Luo, Y. and Peschel, J. and Kooser, K. and Itl, E. and Pelimanni, E. and Saito, S. and You, D. and Maclot, S. and Nizou, A. and Ha, D. T. and Myllynen, H. and Ueda, K.},
  booktitle    = {Free Electron Laser},
  issn         = {1742-6588},
  language     = {eng},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics: Conference Series},
  title        = {Time-resolved dynamics of thiophene dication - Probing parent molecule survival times and multi-step dissociation processes of cyclic molecules by free-electron-laser experiments combined with theoretical simulations},
  url          = {http://dx.doi.org/10.1088/1742-6596/1412/11/112007},
  doi          = {10.1088/1742-6596/1412/11/112007},
  volume       = {1412},
  year         = {2020},
}