1. Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, D-37077 Göttingen, Germany
2. University of Göttingen, Institute for Inorganic Chemistry, Tammannstrasse 4, D-37077 Göttingen, Germany
3. University of Göttingen, Institute for Physical Chemistry, Tammannstrasse 6, D-37077 Göttingen, Germany
4. International Center for Advanced Studies of Energy Conversion (ICASEC), Tammannstrasse 6, D-37077 Göttingen, Germany