1. Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
2. Medical Physics Laboratory, Medical
School, University of Ioannina, Greece
3. Section of Organic Chemistry,
Department of Chemistry, University of Ioannina, Greece
4. Department of
Chemistry, University of Cyprus, 1678 Nicosia,
Cyprus
5. Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznan,
Poland