1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 P. R. China
2. Jilin Provincial Key Laboratory of Architectural Electricity & Comprehensive Energy Saving School of Electrical and Electronic Information Engineering Jilin Jianzhu University Changchun 130118 P. R. China
3. Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory Menlo Park CA 94025 USA