1. Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE)
2. University Duisburg-Essen
3. 45141 Essen
4. Germany
5. Institute for Materials Science
6. Synthesis and Real Structure
7. Kiel University
8. 24143 Kiel
9. Department of Molecular Sciences and Nanosystems
10. Università Ca’ Foscari Venezia
11. I-30172 Venezia-Mestre
12. Italy
13. Department of Chemical Sciences
14. University of Padova
15. I-35131 Padova