1. Institute of Condensed Matter and Nanosciences
2. Université catholique de Louvain
3. B-1348 Louvain-La-Neuve
4. Belgium
5. Unité de Chimie Physique Théorique et Structurale
6. Chemistry Department
7. Namur Institute of Structured Matter (NISM)
8. University of Namur
9. B-5000 Namur