1. Faculty of Chemistry (Organic Chemistry) and Center for Nanointegration Duisburg-Essen (CENIDE)
2. University of Duisburg-Essen
3. Universitätsstrasse 7
4. 45141 Essen
5. Germany
6. Organic Chemistry
7. University of Regensburg
8. 93040 Regensburg
9. Institute of Organic Chemistry
10. University of Münster
11. 48149 Münster
12. Mulliken Center for Theoretical Chemistry
13. Rheinische Friedrich-Wilhelms Universität Bonn
14. 53115 Bonn