1. Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
2. Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
3. CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
4. Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia