1. Department of Chemistry, University of California, Berkeley, California 94720, United States
2. Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
3. Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Girona 17003, Spain
4. Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States