1. Department Chemie; Technische Universität München, TUM; Lichtenbergstraße 4 85747 Garching Germany
2. CEITEC-Central European Institute of Technology; Masaryk University; Kamenice 5 62500 Brno Czech Republic
3. Institute of Structural Biology; Helmholtz Zentrum München; Neuherberg Germany
4. Department of Chemistry and Centre for Theoretical and Computational Chemistry (CTCC); University of Oslo; P.O. Box 1033 Blindern 0315 Oslo Norway
5. Department of Chemistry; University of Helsinki; P.O. Box 55 00014 Helsinki Finland