1. Department of Chemistry
2. College of Science
3. Tianjin University
4. Tianjin 300350
5. P. R. China
6. Tianjin Key Laboratory of Structure and Performance for Functional Molecules
7. Key Laboratory of Inorganic-Organic hybrid Functional Material Chemistry (Tianjin Normal University)
8. Ministry of Education
9. College of Chemistry
10. Tianjin Normal University