1. Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, University of NebraskaLincoln, Lincoln, Nebraska 68588-0111, Department of Chemistry, McMaster University, Hamilton, Ontario, Canada, L8S 4M1, Advanced Light Source, Lawrence-Berkeley Laboratory, One Cyclotron Road, Berkeley, California 94720-8225, Physikalische und Theoretische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany, Stanford Linear Accelerator Center...