1. Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-13, 81377 Munich, Germany
2. CSIRO Manufacturing, Clayton, Victoria 3168, Australia
3. Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Computer-Chemie-Centrum, Nägelsbachstraße 25, 91052 Erlangen, Germany
4. Quantum Theory Project, University of Florida, Gainesville, Florida 32611, United States