1. Helmholtz-Zentrum Dresden-Rossendorf
2. Institute of Radiopharmaceutical Cancer Research
3. 01328 Dresden
4. Germany
5. Faculty of Chemistry and Food Chemistry
6. University of Rostock
7. Institute of Chemistry
8. Department of Inorganic Solid State Chemistry
9. D-18059 Rostock
10. Leipzig University
11. Faculty of Chemistry and Mineralogy
12. Institute of Inorganic Chemistry
13. D-04103 Leipzig