1. Department of Chemistry, Brock University, St. Catharines, Ontario, L2S 3A1, Canada
2. Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA
3. Department of Chemistry and Chemical Biology and The 60 Baruch Center for Biochemical Solar Energy Research, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
4. Institut für Physikalische Chemie, Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany
5. Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA