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