1. Theoretical
Chemistry Institute, Jilin University, Changchun 130023, P. R. China
2. Department
of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
3. Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China