Isotope effects in dynamics of water isotopologues induced by core ionization at an x-ray free-electron laser
(2023) In Structural Dynamics 10(5).- Abstract
Dynamical response of water exposed to x-rays is of utmost importance in a wealth of science areas. We exposed isolated water isotopologues to short x-ray pulses from a free-electron laser and detected momenta of all produced ions in coincidence. By combining experimental results and theoretical modeling, we identify significant structural dynamics with characteristic isotope effects in H2O2+, D2O2+, and HDO2+, such as asymmetric bond elongation and bond-angle opening, leading to two-body or three-body fragmentation on a timescale of a few femtoseconds. A method to disentangle the sequences of events taking place upon the consecutive absorption of two x-ray photons is described. The... (More)
Dynamical response of water exposed to x-rays is of utmost importance in a wealth of science areas. We exposed isolated water isotopologues to short x-ray pulses from a free-electron laser and detected momenta of all produced ions in coincidence. By combining experimental results and theoretical modeling, we identify significant structural dynamics with characteristic isotope effects in H2O2+, D2O2+, and HDO2+, such as asymmetric bond elongation and bond-angle opening, leading to two-body or three-body fragmentation on a timescale of a few femtoseconds. A method to disentangle the sequences of events taking place upon the consecutive absorption of two x-ray photons is described. The obtained deep look into structural properties and dynamics of dissociating water isotopologues provides essential insights into the underlying mechanisms.
(Less)
- author
- organization
- publishing date
- 2023-09-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Structural Dynamics
- volume
- 10
- issue
- 5
- article number
- 054302
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:85174313211
- pmid:37799711
- ISSN
- 2329-7778
- DOI
- 10.1063/4.0000197
- language
- English
- LU publication?
- yes
- id
- b3f15390-c998-468a-ad6c-9697c355d5e0
- date added to LUP
- 2024-01-12 08:34:44
- date last changed
- 2024-04-27 04:02:02
@article{b3f15390-c998-468a-ad6c-9697c355d5e0, abstract = {{<p>Dynamical response of water exposed to x-rays is of utmost importance in a wealth of science areas. We exposed isolated water isotopologues to short x-ray pulses from a free-electron laser and detected momenta of all produced ions in coincidence. By combining experimental results and theoretical modeling, we identify significant structural dynamics with characteristic isotope effects in H<sub>2</sub>O<sup>2+</sup>, D<sub>2</sub>O<sup>2+</sup>, and HDO<sup>2+</sup>, such as asymmetric bond elongation and bond-angle opening, leading to two-body or three-body fragmentation on a timescale of a few femtoseconds. A method to disentangle the sequences of events taking place upon the consecutive absorption of two x-ray photons is described. The obtained deep look into structural properties and dynamics of dissociating water isotopologues provides essential insights into the underlying mechanisms.</p>}}, author = {{Guillemin, R. and Inhester, L. and Ilchen, M. and Mazza, T. and Boll, R. and Weber, Th and Eckart, S. and Grychtol, P. and Rennhack, N. and Marchenko, T. and Velasquez, N. and Travnikova, O. and Ismail, I. and Niskanen, J. and Kukk, E. and Trinter, F. and Gisselbrecht, M. and Feifel, R. and Sansone, G. and Rolles, D. and Martins, M. and Meyer, M. and Simon, M. and Santra, R. and Pfeifer, T. and Jahnke, T. and Piancastelli, M. N.}}, issn = {{2329-7778}}, language = {{eng}}, month = {{09}}, number = {{5}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Structural Dynamics}}, title = {{Isotope effects in dynamics of water isotopologues induced by core ionization at an x-ray free-electron laser}}, url = {{http://dx.doi.org/10.1063/4.0000197}}, doi = {{10.1063/4.0000197}}, volume = {{10}}, year = {{2023}}, }