1. Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore.
2. Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA.
3. Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
4. Department of Physics, Universität Hamburg, Hamburg, Germany.
5. Hamburg Centre for Ultrafast Imaging, Hamburg, Germany.
6. Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.
7. European XFEL GmbH, Schenefeld, Germany.
8. Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL, USA.
9. Department of Chemistry, Northwestern University, Evanston, IL, USA.
10. Sorbonne Université and CNRS, Laboratoire de Chemie Physique-Matière et Rayonnement, LCPMR, F-750005 Paris, France.
11. Department of Energy Conversion and Storage, Technical University of Denmark, Roskilde, Denmark.
12. Department of Chemistry, University of Southern California, Los Angeles, CA, USA.
13. Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
14. Department of Physics and James Franck Institute, University of Chicago, Chicago, IL, USA.