1. Department of Chemistry “Ugo Schiff”, University of Florence and INSTM Research Unit of Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino (FI), Italy
2. Department of Industrial Engineering, University of Florence, and INSTM Research Unit of Firenze, Via Santa Marta 3, 50139 Florence, Italy
3. Department of Chemistry, Center for Molecular Quantum Transduction, and Paula M. Trienens Institute for Sustainability and Energy, Northwestern University, Evanston, Illinois 60208-3113, United States
4. Department of Chemistry and Industrial Chemistry, University of Pisa, and INSTM Research Unit of Pisa, via G. Moruzzi 13, 56124 Pisa, Italy
5. Department of Physics and Astronomy, University of Florence, and INSTM Research Unit of Firenze, 50019 Sesto Fiorentino (FI), Italy
6. Institute of Chemistry of Organometallic Compounds, C.N.R., and INSTM Research Unit of Firenze, 50019 Sesto Fiorentino (FI), Italy
7. Department of Physics and Earth Sciences, University of Ferrara, and INSTM Research Unit of Ferrara, Via Saragat 1, 44122 Ferrara, Italy