1. Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Chemo-Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
2. School of Pharmacy, Wannan Medical College, Wuhu 241002, P. R. China
3. School of Basic Courses, Bengbu Medical College, Bengbu 233030, P. R. China