1. Institute of Crystallography
2. National Research Council (CNR)
3. 95126 Catania
4. Italy
5. Department of Chemical Sciences
6. University of Catania
7. Catania
8. Department of Health Sciences
9. University of Catanzaro
10. 88100 Catanzaro
11. Department of Environmental
12. Biological and Pharmaceutical Science and Technology
13. University of Campania “L. Vanvitelli”
14. 81100 Caserta
15. Department of Pharmacy
16. University of Pisa
17. 56126 Pisa