1. Department of Chemistry Johannes Gutenberg University of Mainz Duesbergweg 10–14 55128 Mainz Germany
2. Institut für Physikalische und Theoretische Chemie Universität Regensburg Universitätsstraße 31 93053 Regensburg Germany
3. Department of Chemistry University of Paderborn Warburger Str. 100 33098 Paderborn Germany
4. Max-Planck-Institute for Polymer Research Mainz Germany
5. Institute of Chemistry University of Rostock Albert-Einstein-Straße 3a 18059 Rostock Germany
6. Department of Physics and Astronomy Vrije Universiteit Amsterdam Amsterdam Netherlands