1. Institute of General
2. Inorganic and Theoretical Chemistry
3. University of Innsbruck
4. A-6020 Innsbruck
5. Austria
6. Université de Lorraine
7. CNRS
8. CRM2
9. F-54000 Nancy
10. France
11. Department of Chemistry
12. University of Cologne
13. D-50939 Cologne
14. Germany