1. Hubei Key Laboratory on Organic and Polymeric Opto-electronic Materials; College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
2. Department of Chemistry; Hubei Normal University; Huangshi Hubei 435002 China
3. Beijing Center for Crystal R&D; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 China
4. College of Chemistry; Central China Normal University; Wuhan 430079 China