1. Key
Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and
Xinjiang Uygur Autonomous Region, College of Chemistry and Chemical
Engineering, Xinjiang University, Urumqi 830046, P. R. China
2. State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China