1. Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Computer-Chemie-Centrum and Chair of Theoretical Chemistry, Nägelsbachstr. 25, 91052 Erlangen, Germany
2. Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Organic Materials and Devices, Department of Materials Science, Interdisciplinary Center for Nanostructured Films (IZNF), 91058 Erlangen, Germany