1. School of Chemical Science and Engineering
2. Tongji University
3. Shanghai 200092
4. P. R. China
5. School of Chemistry
6. University of Bristol
7. Bristol BS8 1TS
8. UK
9. School of Chemistry and Chemical Engineering
10. Shaanxi Normal University
11. Xi'an 710119
12. Department of Chemistry
13. University of Victoria
14. Victoria
15. Canada