1. Institute of Molecule and Crystal Physics – Subdivision of the Ufa Research Centre of the Russian Academy of Sciences, Ufa, Russia
2. Dipartimento di Chimica ‘G. Ciamician’, Università di Bologna, Bologna, Italy
3. Centro Interdipartimentale di Ricerca in Scienze Ambientali, Ravenna, Italy
4. Department of Solid State Electronics, St. Petersburg State University, St. Petersburg, Russia