1. Institute of Inorganic Chemistry of the Czech Academy of Sciences
2. 250 68 Husinec-Řež
3. Czech Republic
4. Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences
5. 166 10 Prague 6
6. Department of General and Inorganic Chemistry
7. Faculty of Chemical Technology
8. University of Pardubice
9. 53210 Pardubice
10. Department of Chemistry
11. University of York
12. York
13. UK