1. Magnetic Resonance Center (CERM)University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP) via Sacconi 6 Sesto Fiorentino Italy
2. Department of ChemistryUniversity of Florence Sesto Fiorentino Italy
3. Bracco Imaging SpaBracco Research Centre Via Ribes 5 10010 Colleretto Giacosa (TO) Italy