1. Stratingh Institute for Chemistry, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands
2. Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany
3. Department of Chemistry, Ludwig-Maximilians-Universität (LMU), Butenandtstr. 5-13, 81377 Munich, Germany
4. Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
5. E-conversion, Lichtenbergstrasse 4a, 85748 Garching, Germany