1. Department of Chemistry, New York University, New York, New York 10003, USA
2. Courant Institute of Mathematical Sciences, New York University, New York, New York 10012, USA
3. NYU-ECNU Center for Computational Chemistry at NYU Shanghai, Shanghai 200062, China
4. Department of Physics, University of Illinois Urbana-Champaign, Champaign, Illinois 61801, USA