Isotope effects in dynamics of water isotopologues induced by core ionization at an x-ray free-electron laser
- Sorbonne University, Centre National de la Recherche Scientifique (CNRS), Paris (France)
- Deutsches Elektronen-Synchrotron DESY 2, Hamburg (Germany)
- European XFEL 3, Schenefeld (Germany); Deutsches Elektronen-Synchrotron DESY 4, Hamburg (Germany)
- European XFEL 3, Schenefeld (Germany)
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Goethe University, Frankfurt (Germany)
- University of Turku (Finland)
- Deutsches Elektronen-Synchrotron DESY 4, Hamburg (Germany); Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin (Germany)
- Lund University (Sweden)
- University of Gothenburg (Sweden)
- Universität Freiburg, Freiburg (Germany)
- Kansas State University, Manhattan, KS (United States)
- University of Hamburg (Germany)
- Deutsches Elektronen-Synchrotron DESY 2, Hamburg (Germany); University of Hamburg (Germany)
- Max-Planck-Institut für Kernphysik, Heidelberg (Germany)
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.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); German Research Foundation (DFG); German Federal Ministry of Education and Research (BMBF); French CNRS GotoXFEL; European Union's Horizon 2020; Max-Planck-Gesellschaft; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); Swedish Research Council; Knut and Alice Wallenberg Foundation
- Grant/Contract Number:
- AC02-05CH11231; SC0019451
- OSTI ID:
- 2234041
- Journal Information:
- Structural Dynamics, Journal Name: Structural Dynamics Journal Issue: 5 Vol. 10; ISSN 2329-7778
- Publisher:
- American Crystallographic Association/AIPCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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