1. Institute for Materials Science, Functional Nanomaterials, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
2. Otto-Diels-Institute
for Organic Chemistry, Kiel University, Otto-Hahn-Platz 4, D-24118 Kiel, Germany
3. Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Str. 7, NW2 C, 28359 Bremen, Germany
4. MAPEX Center for
Materials and Processes, University of Bremen, Bibliothekstraße 1, Bremen 28359, Germany