1. School of Chemistry and Material Science
2. Liaoning Shihua University
3. Fushun 113001
4. P. R. China
5. Molecular Catalysis/Chair of Inorganic Chemistry
6. Department of Chemistry/Catalysis Research Center
7. Technische Universität München
8. D-85747 Garching bei München
9. Germany
10. Department of Chemistry
11. Fudan University
12. Shanghai