X-ray diffractive imaging of controlled gas-phase molecules: Toward imaging of dynamics in the molecular frame

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  • Thomas Kierspel, German Electron Synchrotron, University of Hamburg, University of Basel
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  • Andrew Morgan, German Electron Synchrotron, University of Melbourne
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  • Joss Wiese, German Electron Synchrotron, University of Hamburg
  • ,
  • Terry Mullins, German Electron Synchrotron
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  • Andy Aquila, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
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  • Anton Barty, German Electron Synchrotron
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  • Richard Bean, German Electron Synchrotron, European XFEL
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  • Rebecca Boll, European XFEL, German Electron Synchrotron
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  • Sébastien Boutet, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
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  • Philip Bucksbaum, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Stanford University
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  • Henry N. Chapman, German Electron Synchrotron, University of Hamburg
  • ,
  • Lauge Christensen
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  • Alan Fry, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
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  • Mark Hunter, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
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  • Jason E. Koglin, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
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  • Mengning Liang, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
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  • Valerio Mariani, German Electron Synchrotron
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  • Adi Natan, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
  • ,
  • Joseph Robinson, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
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  • Daniel Rolles, German Electron Synchrotron, Kansas State University
  • ,
  • Artem Rudenko, Kansas State University
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  • Kirsten Schnorr, Max Planck Institute for Nuclear Physics
  • ,
  • Henrik Stapelfeldt
  • Stephan Stern, German Electron Synchrotron
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  • Jan Thøgersen
  • Chun Hong Yoon, German Electron Synchrotron, European XFEL
  • ,
  • Fenglin Wang, German Electron Synchrotron, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory
  • ,
  • Jochen Küpper, German Electron Synchrotron, University of Hamburg

We report experimental results on the diffractive imaging of three-dimensionally aligned 2,5-diiodothiophene molecules. The molecules were aligned by chirped near-infrared laser pulses, and their structure was probed at a photon energy of 9.5 keV (λ ≈ 130 pm) provided by the Linac Coherent Light Source. Diffracted photons were recorded on the Cornell-SLAC pixel array detector, and a two-dimensional diffraction pattern of the equilibrium structure of 2,5-diiodothiophene was recorded. The retrieved distance between the two iodine atoms agrees with the quantum-chemically calculated molecular structure to be within 5%. The experimental approach allows for the imaging of intrinsic molecular dynamics in the molecular frame, albeit this requires more experimental data, which should be readily available at upcoming high-repetition-rate facilities.

OriginalsprogEngelsk
Artikelnummer084307
TidsskriftJournal of Chemical Physics
Vol/bind152
Nummer8
Antal sider10
ISSN0021-9606
DOI
StatusUdgivet - 2020

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