1. Department of Chemistry, Philipps University Marburg, Hans-Meerwein-Straße 4, 35037 Marburg, Germany
2. Institute of Applied Physics (IAP), Justus Liebig University Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany
3. Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26111 Oldenburg, Germany
4. Theoretical Chemistry and Interdisciplinary Center for Molecular Materials (ICMM), Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany