1. Key Laboratory of Materials Modification by Laser
2. Ion and Electron Beams
3. Dalian University of Technology
4. Ministry of Education
5. Dalian 116024, China
6. State Key Laboratory of Molecular Reaction Dynamics
7. Institute of Chemistry
8. Chinese Academy of Sciences
9. Beijing 100190, China
10. Department of Chemistry and Center for Computational Chemistry
11. University of Georgia
12. Athens, USA