1. Key Laboratory of Optoelectronic Materials Chemistry and Physics Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China
2. University of Chinese Academy of Sciences Beijing 100049 P. R. China
3. State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Fuzhou Fujian 350002 P. R. China
4. Institute of Atomic and Molecular Physics Sichuan University Chengdu 610065 P. R. China