1. Department of Chemistry, Section of Inorganic and Analytical Chemistry, University of Ioannina, 45110 Ioannina, Greece, NRCPS Demokritos, Institute of Materials Science, 15310 Aghia Paraskevi Attikis, Greece, Department of Environmental and Natural Resources Management, Laboratory of Physical Chemistry, University of Ioannina, Seferi 2, 30100 Agrinio, Greece, and Department of Chemistry, Laboratory of Applied Quantum Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece