1. Clausthal University of Technology Institute of Organic Chemistry Leibnizstrasse 6 38678 Clausthal-Zellerfeld Germany
2. Clausthal University of Technology Institute of Energy Research and Physical Technologies Am Stollen 19 B D-38640 Goslar Germany
3. Clausthal University of Technology Institute of Energy Research and Physical Technologies Leibnizstrasse 4 38678 Clausthal-Zellerfeld Germany
4. Clausthal University of Technology Clausthal Centre for Material Technology Agricolastrasse 2 38678 Clausthal-Zellerfeld Germany
5. Clausthal University of Technology Institute of Physical Chemistry Arnold-Sommerfeld-Strasse 4 38678 Clausthal-Zellerfeld Germany