1. Institute of Particle Technology (LFG), Friedrich-Alexander-University Erlangen-Nürnberg (FAU), 91058 Erlangen, Germany
2. Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
3. Molecular Spectroscopy Department, Max Planck Institute for Polymer Research, 55128 Mainz, Germany
4. Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, 1098 EP Amsterdam, The Netherlands