1. Laboratoire d'Innovation Thérapeutique (Medicinal Chemistry Laboratory), University of Strasbourg, UMR 7200‐CNRS, Faculté de Pharmacie, 74, route du Rhin, 67401 Illkirch, France, http://medchem.u‐strasbg.fr/pages/welcome.php
2. Current address: Institut de Chimie, UMR 7177/CNRS‐Unistra, University of Strasbourg, 4, rue Blaise Pascal, 67000 Strasbourg, France
3. Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany, http://www.aoc.kit.edu/
4. Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), P. O. Box 3640, 76021 Karlsruhe, Germany, http://www.int.kit.edu/home.php