1. a Department of Chemistry , University of Antwerp (UIA) , Universiteitsplein 1, B-2610, Antwerp, Belgium
2. b Charles Evans & Associates , 301 Chesapeake Drive, Redwood City, CA, 94063, USA
3. c Department of Pharmaceutical Sciences , University of Antwerp (UIA) , Universiteitsplein 1, B-2610, Antwerp, Belgium
4. d Department of Physics , Facultes Universitaire Notre-Dame de la Paix , Rue de Bruxelles 61, B-5000, Namur, Belgium