1. Beijing National Laboratory of Molecular Science
2. State Key Laboratory of Rare Earth Materials Chemistry and Applications
3. College of Chemistry and Molecular Engineering
4. Peking Ufniversity
5. Beijing 100871
6. Jiangsu Key Laboratory for NSLSCS
7. School of Physical Science and Technology
8. Nanjing Normal University
9. Nanjing 210023
10. P. R. China
11. College of Chemistry
12. Beijing Normal University
13. Beijing