1. Max Planck Institute for Chemical Energy Conversion; Stiftstr. 34-36 D-45470 Mülheim an der Ruhr Germany
2. Centro Nacional de Pesquisa em Energia e Materiais; Brazilian Synchrotron Light Laboratory - LNLS; CP 6192, 13084-971 Campinas SP Brazil
3. Department of Chemistry; The Pennsylvania State University; University Park PA 16802 USA
4. Department of Chemistry; University of Washington; Box 351700 Seattle WA 98195-1700 USA
5. Cornell University, Department of Chemistry and Chemical Biology; Ithaca NY 14853 USA