1. ICREA Researcher at Institut de Recerca Biomèdica, Baldiri Reixac 10−12, Barcelona 08028, Spain
2. Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB21EW, United Kingdom
3. Institut de Recerca Biomèdica, Baldiri Reixac 10−12, Barcelona 08028, Spain
4. Departament de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, Barcelona 08028, Spain
5. Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX13QZ, United Kingdom