1. Institute of Technical Chemistry
2. Gottfried Wilhelm Leibniz University Hannover
3. D-30167 Hannover
4. Germany
5. Laboratory of Nano- and Quantum-Engineering (LNQE)
6. Universität Bonn
7. Mulliken Center for Theoretical Chemistry
8. Institut für Physikalische und Theoretische Chemie
9. D-53115 Bonn
10. University of Bremen
11. Institute of Inorganic Chemistry and Crystallography
12. D-28359 Bremen
13. Institute for Inorganic Chemistry