1. Institut de Química Computacional i Catàlisi and Departament de Química Universitat de Girona C/ M. Aurèlia Capmany 69 17003 Girona Spain
2. ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
3. Theoretical Chemistry, Department of Chemistry and Pharmaceutical Sciences AIMMS Vrije Universiteit Amsterdam De Boelelaan 1083 1081 HV Amsterdam The Netherlands
4. Leiden Institute of Chemistry Leiden University PO Box 9502 NL-2300 RA Leiden The Netherlands
5. Department of Chemistry University of Warsaw 02-093 Warsaw Pasteura 1 Poland
6. Faculty of Chemistry Warsaw University of Technology Noakowskiego 3 Warsaw 00-664 Poland