1. Department of Chemistry, New York University 1 , New York, New York 10003, USA
2. Simons Center for Computational Physical Chemistry at New York University 2 , New York, New York 10003, USA
3. Department of Chemistry and Biochemistry, University of California 3 , Los Angeles, California 90095-1569, USA
4. NYU-ECNU Center for Computational Chemistry at NYU Shanghai 4 , 3663 Zhongshan Road North, Shanghai 200062, China