1. Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti OrganoMetallici (ICCOM), Via Madonna del Piano 10, 50019 Sesto Fiorentino (Florence), Italy
2. Department of Chemistry, King's College London, 7 Trinity Street, London SE1 1DB, UK
3. Institute of Pharmaceutical Science, King's College London, Franklin Wilkins Building, London SE1 9NH, UK