1. Magnetic Resonance Center (CERM) and Interuniversity Consortium for Magnetic Resonance of Metallo Proteins (CIRMMP), Sesto Fiorentino, Italy
2. Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Italy
3. Electron-Spin Resonance Spectroscopy, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
4. Department of Chemistry, Georg-Augusta-University, Göttingen, Germany