1. Chongqing Key Laboratory of Inorganic Functional Materials College of Chemistry Chongqing Normal University Chongqing 401331 P. R. China
2. Chongqing Key Laboratory of Theoretical and Computational Chemistry School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 P. R. China
3. College of Chemistry and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 P. R. China