1. Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
2. Energy Sciences Institute, Yale University, West Haven, Connecticut 06516, United States
3. Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
4. Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
5. Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
6. Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
7. Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States