1. Nanochemistry Department, Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
2. Department of Chemistry, University of Munich (LMU), Butenandtstraße 5−13, 81377 Munich, Germany
3. Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
4. Institute for Inorganic Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
5. E-conversion and Center for Nanoscience, Lichtenbergstraße 4a, 85748 Garching, Germany