1. Department of Chemistry IFM, University of Turin, Via P. Giuria 9, 10125 Torino, Italy
2. Faculty of Chemistry, Physical Chemistry Division, University of Łódź, ul. Pomorska 165, 90-236 Łódź, Poland
3. Department of Chemistry, University Federico II of Naples, Complesso Universitario di Monte S. Angelo, Via Cintia, 80126 Napoli, Italy