1. Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
2. School of Chemistry
3. Sun Yat-Sen University
4. Guangzhou 510275
5. P. R. China
6. The University of Manchester
7. Manchester M13 9PL
8. UK
9. Wuhan National High Magnetic Center
10. Huazhong University of Science and Technology
11. Wuhan 430074