1. Department of Chemistry, Stanford University, Stanford, California 94305, United States
2. Department of Microbial and Molecular Systems, Center for Sustainable Catalysis and Engineering, KU Leuven-University of Leuven, Leuven B-3001, Belgium
3. Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States