1. Institute of Inorganic
Chemistry, Christian-Albrechts-Universität, Max-Eyth Straße 2, D-24118 Kiel, Germany
2. Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstraße 5-13, D-81377 Munich, Germany
3. Department of Chemistry, University of Oslo, N-0371 Oslo, Norway