1. Institute for BioMolecular Optics, Ludwig‐Maximilians‐University Munich, Oettingenstr. 67, 80538 Munich (Germany)
2. Department of Chemistry and Biochemistry, Ludwig‐Maximilians‐University Munich, Butenandtstrasse 5–13, Haus F, 81377 Munich (Germany), Fax: (+49) 89‐2180‐77756
3. Department of Chemistry and Biochemistry, Ludwig‐Maximilians‐University Munich, Butenandtstrasse 5–13, Haus E, 81377 Munich (Germany)
4. Department of Chemistry and Biochemistry, Ludwig‐Maximilians‐University Munich, Butenandtstrasse 5–13, Haus D, 81377 Munich (Germany)