1. Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Department of Chemistry, University of Patras, 265 00 Patras, Greece, and Laboratory of Applied Quantum Chemistry, Department of General and Inorganic Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, 540 06 Thessaloniki, Greece