1. Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences; Yangqiao West Road 155 Fuzhou Fujian 350002 P.R. China
2. Shanghai Synchrotron Radiation Facility; Shanghai Institute of Applied Physics, Chinese Academy of Sciences; Shanghai 201204 P.R. China