1. Shanghai Synchrotron Radiation FacilityShanghai Institute of Applied PhysicsChinese Academy of Sciences Shanghai 201204 P. R. China
2. Shanghai Advanced Research Institute Shanghai 201210 P. R. China
3. University of Chinese Academy of Sciences Beijing 100100 P. R. China
4. State Key Laboratory of Material Processing and Die & Mould TechnologySchool of Materials Science and EngineeringHuazhong University of Science and Technology Wuhan, Hubei 430074 P. R. China
5. State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of Sciences P. R. China
6. Division of Chemistry, Graduate School of ScienceKyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan