1. School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
2. Research Center for Molecular Recognition and Synthesis Department of Chemistry Fudan University 220 Handan Lu Shanghai 200433 P. R. China
3. Chin. J. Chem. Editorial Office Shanghai Institute of Organic Chemistry 345 Lingling Lu Shanghai 200032 P. R. China
4. State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry 345 Lingling Lu Shanghai 200032 P. R. China