1. Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
2. RA3, Intel Corporation, Ronler Acres, 2501 NE Century Blvd, Hillsboro, OR 97124, USA.
3. Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, 4600 Rickenbacker Cswy., Miami, FL 33149, USA.
4. Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark.
5. Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA.
6. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
7. Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
8. SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA.
9. Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA.
10. Laboratory for Femtochemistry (LSF), Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen-PSI, Switzerland.
11. Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
12. LUXS Laboratory for Ultrafast X-ray Sciences, Institute for Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
13. Department of Physics and Astronomy, University of Southern California, Los Angeles, CA 90089, USA.