1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
2. Changchun 130022
3. P. R. China
4. Institute of Inorganic Chemistry, University of Goettingen
5. 37077 Göttingen
6. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
7. Fuzhou 350002
8. Department of Chemistry, School of Life Sciences, University of Sussex
9. Brighton
10. UK
11. University of Science and Technology of China
12. Hefei 230026