1. Department
of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic
Materials, Wuhan University, Wuhan 430072, China
2. Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
3. Department
of Chemistry, Beijing Normal University, Beijing 100875, China
4. Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China