1. Institut für Theoretische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
2. School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
3. School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
4. Max-Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
5. Faculty of Chemistry, University of Warsaw, L. Pasteura 1 St., 02-093 Warsaw, Poland
6. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
7. MSME, Université Gustave Eiffel, UPEC, CNRS, F-77454 Marne-la-Vallée, France
8. Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA