1. State Key Laboratory of Rare Earth Resource Utilization
2. Changchun Institute of Applied Chemistry
3. Chinese Academy of Sciences
4. Changchun 130022
5. P. R. China
6. Institut des Sciences Chimiques de Rennes
7. UMR 6226 CNRS-Université de Rennes 1
8. 35042 Rennes Cedex
9. France