1. Chemistry Department, University of Tunis El Manar, Faculty of Sciences of Tunis, B.P. 248 El Manar II, 2092 Tunis, Tunisia
2. Laboratory of Theoretical Chemistry, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, University of Namur, Rue de Bruxelles, 61, 5000 Namur, Belgium
3. Laboratory of Materials Molecules and Applications, Preparatory Institute for Scientific and Technical Studies, Carthage University, B.P. 51, La Marsa, 2075 Tunis, Tunisia