1. Department of Chemistry
2. KU Leuven
3. B-3001 Leuven
4. Belgium
5. Institute for Computational Science and Technology (ICST)
6. University of Kinshasa
7. Democratic Republic of Congo
8. Instituto de Investigaciones en Materiales
9. Universidad Nacional Autónoma de México
10. C.P. 04510 Cd. de México
11. Mexico