1. Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstraße 15 76131 Karlsruhe Germany
2. Institute of Nanotechnology (INT) Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
3. Institut de Science et d'Ingénierie Supramoléculaires (ISIS, UMR 7006) CNRS-Université de Strasbourg 8 allée Gaspard Monge, BP 70028 67083 Strasbourg Cedex France
4. Department of Chemistry University of Copenhagen Universitetparken 5 2100 Copenhagen Denmark
5. Institute for Quantum Materials and Technologies (IQMT) Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany