GUO Jia-Cong1, YANG Yang1, MA Ming-Yuan1, DUAN Dai-Ping2**, ZENG Hui-Ying1**
1. The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000,China; 2. Institute of Higher Education, Lanzhou University, Lanzhou 730000,China