1. Department of Chemistry, New York University, New York, New York 10003, United States
2. Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
3. School of Physics & Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
4. Institut Laue-Langevin, CS 20156, 38042 Grenoble, France
5. Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
6. NYU-ECNU Center for Computational Chemistry at NYU Shanghai, 3663 Zhongshan Road North, Shanghai 200062, China