1. Inorganic Chemistry III and North Bavarian NMR Center, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
2. Physical and Theoretical Chemistry, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
3. Bruker BioSpin, 34 Rue de l’Industrie BP 10002, 67166 Wissembourg Cedex, France
4. Bruker BioSpin GmbH, Silberstreifen 4, 76287 Rheinstetten, Germany
5. Macromolecular Chemistry I, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
6. Eduard-Zintl Institute for Inorganic and Physical Chemistry, Technical University Darmstadt, Alarich-Weiss-Straße 8, D-64287 Darmstadt, Germany
7. Institute of Chemistry and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Straße 40, D-34132 Kassel, Germany