10. Acknowledgments Habilitation Dr. Mario Ruben ULP Strasbourg In first place, I would like to express my gratitude to Prof. J.-M. Lehn, Université Louis Patseur / ISIS Strasbourg, France, for giving me the generous opportunity to prepare the scientific results presented in this work. Furthermore, I would like to acknowledge all scientific collaborations with different research <strong>group</strong>s through Europe on different aspects of the work, without their essential contributions this work would not have be possible: - Dr. J.-P. Giesselbrecht, Laboratoire d´Electrochimie, CNRS-UMR 7512- Université Louis Pasteur Strasbourg, France. - Prof. P. Gütlich, Institut für Anorganische und Analytische Chemie, Universität Mainz, Germany. - Prof. K. Kern, Max-Planck Institut für Festkörperforschung, Stuttgart, Germany - Prof. J. V. Barth, EPF Lausanne, Switzerland. - Prof. P. Müller, Physikalisches Institut III, Universität Erlangen, France. - Prof. B. Barbara, Laboratoire de Magnétisme Louis Néel, CNRS, Grenoble, France. - Prof. H. Schöller, Institut für Theoretische Physik, RWTH Aachen, Germany. I am very grateful to the support and the help of the following people, who contributed in different degrees to the success of this work: Reinhart Ahlrichs, Silviu Balaban, Mihail Barboiu, Susan Brink, Paul Baxter, Detlef Beckmann, Volker Berl, Doris Biltz, Esther Breuning, Jacline Claudon, Louis Cuccia, Michelle di Leo, Bernard Dietrich + , Andreas Eichhöfer, Ferdinand Evers, Dieter Fenske, Matthias Fischer, Olaf Fuhr, Herbert Gleiter, Horst Hahn, Carsten von Hähnisch, Oliver Hampe, Matthias Hettler, Phi-Ho Hong, Mike Krische, Aitor Landa, Marie-Noelle Lalloz, Steven Lenhert, Nian Lin, Hilbert von Löhneysen, Patrich Maltese, Annie Marquis, Marcel Mayor, Anne Petitjean, Zhi-Rong Qu, Chandru Rajadurai, Holger Rupp, Thomas Schimmel, Herbert Schoeller, Erika Schütze, Christroph Stroh, Stefan Strömsdörfer, Michel Verdaguer, Heiko Weber, Wolfgang Wenzel, Desiree Westermann, Olaf Wollersheim, Jan Würfel, Ulrich Ziener, Giorgio Zoppellaro. 47
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