1. Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials
2. Beijing Normal University
3. Beijing 100875
4. P. R. China
5. Beijing National Laboratory for Molecular Sciences
6. State Key Laboratory of Rare Earth Materials Chemistry and Applications
7. College of Chemistry and Molecular Engineering
8. Peking University
9. Beijing 100871
10. Jiangsu Key Laboratory for NSLSCS
11. School of Physical Science and Technology
12. Nanjing Normal University
13. Nanjing 210023