1. Contribution from the Department of Physics and Center for Interdisciplinary Research on Complex Systems, Northeastern University, Boston, Massachusetts 02115, Steacie Institute for Molecular Science, National Research Council of Canada, Ottawa, Ontario, Canada K1A OR6, Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Physics, Purdue University, West Lafayette,...