1. Key Laboratory of Theoretical Organic Chemistry and Functional Molecular, Ministry of Education, Hunan University of Science and Technology, Xiangtan, People's Republic of China
2. Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, People's Republic of China
3. Department of Mathematics and Physics, North China Electric Power University, Beijing, People's Republic of China
4. Beijing Kein Research Center for Natural Sciences, Beijing, People's Republic of China