1. Department
of Chemistry, Center for Metals in Biocatalysis, Chemical Theory Center,
and Minnesota Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
2. Department
of Chemistry, Stanford University, Stanford, California 94305, United States
3. Stanford
Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California 94025, United States