1. Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
2. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
3. Department of Chemistry, University of California Berkeley, Berkeley, California 94720, USA
4. Department of Computer Science, University of Southern California, Los Angeles, California 90089, USA
5. Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089, USA
6. Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
7. Department of Chemical Engineering and Material Science, University of Southern California, Los Angeles, California 90089, USA
8. Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
9. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
10. Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
11. Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, 85741 Garching, Germany
12. Max-Planck-Institut für Medizinische Forschung, Jahnstrasse 29, 69120 Heidelberg, Germany
13. PNSensor GmbH, Otto-Hahn-Ring 6, 81739 München, Germany
14. Department of Physics, University of California Berkeley, Berkeley, California 94720, USA
15. Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
16. J.R. MacDonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
17. Paul-Scherrer Institute, CH-5232 Villigen PSI, Switzerland
18. LUXS Laboratory for Ultrafast X-ray Sciences, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fèdèrale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland