1. State Key Laboratory of Applied Organic Chemistry (SKLAOC)Key Laboratory of Special Function Materials and Structure Design (MOE)College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
2. MOE Key Laboratory of Material Physics and Chemistry under Extraordinary ConditionsSchool of Chemistry and Chemical EngineeringNorthwestern Polytechnical University Xi'an 710072 P. R. China
3. Beijing Key Laboratory for Optical Materials and Photonic DevicesDepartment of ChemistryCapital Normal University Beijing 100048 P. R. China
4. Tianjin Key Laboratory of Molecular Optoelectronic SciencesDepartment of ChemistryTianjin University, and CollaborativeInnovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 P. R. China
5. Beijing National Laboratory for Molecules Science (BNLMS)State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesKey Laboratory of PhotochemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China