1. Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, Sesto Fiorentino (FI) 50019, Italy
2. European Laboratory for Non-Linear Spectroscopy (LENS), Via N. Carrara 1, Sesto Fiorentino (FI) 50019, Italy
3. CNR-ICCOM, via Madonna del Piano 10, Sesto Fiorentino (FI) 50019, Italy
4. Department of Chemistry, University of Burgos, Pza. Misael Bañuelos s/n, Burgos 09001, Spain