1. Department Chemie, Technische Universität München (TUM), Lichtenbergstraße 4, 85747 Garching (Germany)
2. BASF SE, Quantum Chemistry Group, GVM/M ‐ B009, 67056 Ludwigshafen (Germany)
3. Department of Chemistry, University of Helsinki, A.I. Virtanens plats 1, 00014 Helsinki (Finland)