1. Beijing National Laboratory for Molecular SciencesKey Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
2. School of Chemistry and Chemical EngineeringUniversity of Chinese Academy of Sciences Beijing 100190 China
3. Department of ChemistryBeijing Normal University Beijing 100875 China
4. Department of ChemistryTianjin Key Laboratory of Molecular Optoelectronic SciencesSchool of ScienceTianjin University & Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China