1. Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
2. Department of Natural Sciences, University of Michigan─Dearborn, 4901 Evergreen Road, Dearborn, Michigan 48128, United States
3. Department of Organic Chemistry, Weizmann Institute of Science, 76100 Rehovot, Israel
4. Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franquès 1, E-08820 Barcelona, Spain
5. Department of Physics, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus