1. Faculty
of Chemistry, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
2. Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Henkestrasse 42, 91054 Erlangen, Germany
3. Department
of Chemistry, University of Cologne, Greinstraße 4, 50939 Cologne, Germany
4. Institute of Molecular
Enzyme Technology at the Heinrich-Heine-University of Düsseldorf,
Research Centre Jülich, Stetternicher
Forst, 52426 Jülich, Germany