1. School of Chemical Engineering Aristotle University of Thessaloniki 54124 Thessaloniki Greece
2. Department of Chemistry Aristotle University of Thessaloniki 54124 Thessaloniki Greece
3. Department of Chemistry Laboratory of Inorganic Chemistry University of Patras 26504 Patras Greece
4. NCSR “Demokritos” Institute of Nanoscience and Nanotechnology 15310 Attiki Greece
5. Institut für Anorganische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Germany