1. Department
of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg
1-5, CH-8093 Zurich, Switzerland
2. Faculty of Informatics, Università della Svizzera Italiana, Via G. Buffi 13, CH-6900 Lugano, Switzerland
3. Institute of Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
4. Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany
5. Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, Via R. Cozzi 55, I-20125 Milano, Italy