1. Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, Fax: +41‐44‐635‐6803
2. Biochemistry II – Molecular Neurobiochemistry, Faculty of Chemistry and Biochemistry, Ruhr‐University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
3. Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany
4. Inorganic Chemistry I – Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr‐University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany, Fax: +49‐234‐321‐4378