1. National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
2. Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
3. Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
4. Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
5. Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, Illinois 60298, United States
6. Department of Molecular and Medical Genetics, Oregon Health Science University, Portland, Oregon 97239, United States
7. Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States