1. Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
2. Key Laboratory of Functional Materials Physics and Chemistry of Ministry of Education, Jilin Normal University, Changchun 130103, China
3. School of Physics, Northeast Normal University, Changchun 130024, P. R. China
4. Laboratory of Molecular Modeling and Design, State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, 457 Zhongshan Road, Dalian 116023, P. R. China