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Ultrafast isomerization initiated by X-ray core ionization.
Liekhus-Schmaltz, Chelsea E; Tenney, Ian; Osipov, Timur; Sanchez-Gonzalez, Alvaro; Berrah, Nora; Boll, Rebecca; Bomme, Cedric; Bostedt, Christoph; Bozek, John D; Carron, Sebastian; Coffee, Ryan; Devin, Julien; Erk, Benjamin; Ferguson, Ken R; Field, Robert W; Foucar, Lutz; Frasinski, Leszek J; Glownia, James M; Gühr, Markus; Kamalov, Andrei; Krzywinski, Jacek; Li, Heng; Marangos, Jonathan P; Martinez, Todd J; McFarland, Brian K; Miyabe, Shungo; Murphy, Brendan; Natan, Adi; Rolles, Daniel; Rudenko, Artem; Siano, Marco; Simpson, Emma R; Spector, Limor; Swiggers, Michele; Walke, Daniel; Wang, Song; Weber, Thorsten; Bucksbaum, Philip H; Petrovic, Vladimir S.
Affiliation
  • Liekhus-Schmaltz CE; Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA.
  • Tenney I; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Osipov T; Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA.
  • Sanchez-Gonzalez A; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Berrah N; Department of Physics, University of Connecticut, 2152 Hillside Road, Storrs, Connecticut 06269, USA.
  • Boll R; Department of Physics, Imperial College London, Prince Consort Road, London SW7 2AZ, UK.
  • Bomme C; Department of Physics, University of Connecticut, 2152 Hillside Road, Storrs, Connecticut 06269, USA.
  • Bostedt C; Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany.
  • Bozek JD; Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany.
  • Carron S; Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany.
  • Coffee R; Linac Coherent Light Source, 2575 Sand Hill Road, Menlo Park, California 94025.
  • Devin J; Linac Coherent Light Source, 2575 Sand Hill Road, Menlo Park, California 94025.
  • Erk B; Linac Coherent Light Source, 2575 Sand Hill Road, Menlo Park, California 94025.
  • Ferguson KR; Linac Coherent Light Source, 2575 Sand Hill Road, Menlo Park, California 94025.
  • Field RW; Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA.
  • Foucar L; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Frasinski LJ; Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany.
  • Glownia JM; Linac Coherent Light Source, 2575 Sand Hill Road, Menlo Park, California 94025.
  • Gühr M; Department of Applied Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA.
  • Kamalov A; Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
  • Krzywinski J; Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.
  • Li H; Department of Physics, Imperial College London, Prince Consort Road, London SW7 2AZ, UK.
  • Marangos JP; Linac Coherent Light Source, 2575 Sand Hill Road, Menlo Park, California 94025.
  • Martinez TJ; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • McFarland BK; Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA.
  • Miyabe S; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Murphy B; Linac Coherent Light Source, 2575 Sand Hill Road, Menlo Park, California 94025.
  • Natan A; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Rolles D; Linac Coherent Light Source, 2575 Sand Hill Road, Menlo Park, California 94025.
  • Rudenko A; Department of Physics, Imperial College London, Prince Consort Road, London SW7 2AZ, UK.
  • Siano M; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Simpson ER; Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, USA.
  • Spector L; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Swiggers M; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Walke D; Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, USA.
  • Wang S; Department of Physics, University of Connecticut, 2152 Hillside Road, Storrs, Connecticut 06269, USA.
  • Weber T; PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Bucksbaum PH; Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany.
  • Petrovic VS; Department of Physics, J. R. Macdonald Laboratory, Kansas State University, 306 Cardwell Hall, Manhattan, Kansas 66506, USA.
Nat Commun ; 6: 8199, 2015 Sep 10.
Article in En | MEDLINE | ID: mdl-26354002
ABSTRACT
Rapid proton migration is a key process in hydrocarbon photochemistry. Charge migration and subsequent proton motion can mitigate radiation damage when heavier atoms absorb X-rays. If rapid enough, this can improve the fidelity of diffract-before-destroy measurements of biomolecular structure at X-ray-free electron lasers. Here we study X-ray-initiated isomerization of acetylene, a model for proton dynamics in hydrocarbons. Our time-resolved measurements capture the transient motion of protons following X-ray ionization of carbon K-shell electrons. We Coulomb-explode the molecule with a second precisely delayed X-ray pulse and then record all the fragment momenta. These snapshots at different delays are combined into a 'molecular movie' of the evolving molecule, which shows substantial proton redistribution within the first 12 fs. We conclude that significant proton motion occurs on a timescale comparable to the Auger relaxation that refills the K-shell vacancy.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nat Commun Journal subject: BIOLOGIA / CIENCIA Year: 2015 Document type: Article Affiliation country: Estados Unidos
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nat Commun Journal subject: BIOLOGIA / CIENCIA Year: 2015 Document type: Article Affiliation country: Estados Unidos