1. Department of Chemistry
2. Center for Supramolecular Chemistry and Catalysis
3. Shanghai University
4. Shanghai 200444
5. P. R. China
6. School of Physics and Materials Science
7. Shanghai Key Laboratory of Magnetic Resonance
8. East China Normal University
9. Shanghai 200062
10. State Key Laboratory of Toxicology and Medical Countermeasures
11. Beijing Institute of Pharmacology and Toxicology
12. Beijing 100850