1. Department of Chemistry, University of Patras, 265 04 Patras,
Greece
2. Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
3. Department of Chemistry, Brock University, L2S 3A1 St. Catharines,
Ontario, Canada
4. Institute
of Advanced Materials, Physicochemical Processes, Nanotechnology and
Microsystems, Department of Materials Science, NCSR “Demokritos”, 153
10 Aghia Paraskevi Attikis, Greece