1. Department of Chemistry, University of Miami, Coral Gables, Florida 33124
2. Department of Geological Sciences, Chemical and Environmental Technologies (GeoTeCA), University of Urbino, Campus ex-Sogesta, Loc. Crocicchia, 61029 Urbino, Italy
3. Università di Bologna, Dipartimento di Chimica “G. Ciamician”, via Selmi 2, 40126 Bologna, Italy, and Centro Interdipartimentale di Ricerca in Scienze Ambientali (CIRSA), via S. Alberto 163, 48123 Ravenna, Italy
4. Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
5. Department of Chemistry, Columbia University, New York, New York 10027