1. Magnetic Resonance Center CERM University of Florence Via L. Sacconi 6 50019 Sesto Fiorentino Florence Italy
2. Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP) Via L. Sacconi 6 50019 Sesto Fiorentino Florence Italy
3. Laboratoire de Chimie et Biologie des Métaux Univ. Grenoble Alpes CNRS, CEA, IRIG, UMR 5249 17 rue des Martyrs 38000 Grenoble France
4. Department of Chemistry University of Florence Via della Lastruccia 3 50019 Sesto Fiorentino Florence Italy