1. Beijing National Laboratory for Molecular Sciences; State Key Laboratory for Structural Chemistry of Unstable and Stable Species; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
2. Center for Nanoscience and Nanotechnology; Academy for Advanced Interdisciplinary Studies; Peking University; Beijing 100871 China
3. Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100049 China
4. University of Chinese Academy of Sciences; Beijing 100049 China
5. Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences (CAS); Fuzhou Fujian 350002 China
6. Department of Materials Science and Engineering; College of Engineering; Peking University; Beijing 100871 China