1. University of Strasbourg
2. CNRS
3. ISIS UMR 7006
4. F-67000 Strasbourg
5. France
6. CNR-ISOF
7. 40129 Bologna
8. Italy
9. Department of Materials Science and Engineering
10. Stanford University
11. Stanford
12. USA
13. Dipartimento di Scienze Chimiche
14. Università degli studi di Catania
15. 95125 Catania