1. Department of Chemistry, Stanford University, Stanford, California 94305, United States
2. Department of Biochemistry, Molecular Biology, & Biophysics, University of Minnesota, Minneapolis, Minnesota 55455, United States
3. J. Heyrovský Institute of Physical Chemistry, The Czech Academy of Sciences, Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
4. Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
5. Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
6. Research Reactor Institute, Kyoto University, Osaka 590-0494, Japan
7. Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
8. SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States