1. Department Of Chemistry and Chemical Technologies
2. University of Calabria
3. I-87036 Arcavacata di Rende
4. Italy
5. Departamento de Quimica
6. Division de Ciencias Basicas e Ingenieria
7. Universidad Autonoma Metropolitana-Iztapalapa
8. Mexico
9. Faculty of Chemistry and Mineralogy
10. Wilhelm-Ostwald-Institute for Physical and Theoretical Chemistry
11. D-04103 Leipzig
12. Germany