1. Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
2. Institute of Materials, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
3. Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
4. Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/V, 8010 Graz, Austria