1. Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
2. Institute of General and Inorganic Chemistry, Bulgarian Academy of Science, Akad. G. Bontchev Street, Bl.11, 1113 Sofia, Bulgaria
3. Max-Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
4. Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
5. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
7. Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
8. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States