1. Department of; Biochemistry and Molecular Biology; College of Medicine; University of Florida; P. O. Box 100245 Gainesville FL 32610 USA
2. Department of Chemistry; College of Liberal Arts and Sciences; University of Florida; P. O. Box 117200 Gainesville FL postCode/>32610 USA
3. CAPES Foundation; Ministry of Education of Brazil; Brasília DF 70040-020 Brazil
4. Institut de Chimie Moléculaire de Reims; CNRS UMR 7312; Université de Reims Champagne-Ardenne; UFR Pharmacie; 51 Rue Cognacq-Jay 51096 Reims Cedex France
5. Dipartimento di Farmacia; Università “G. d'Annunzio”; Via dei Vestini 66100 Chieti Italy
6. Laboratorio de Chimica Bioinorganica; Room 188; Universita degli Studi di Firenze; Via della Lastruccia 3 50019 Sesto Fiorentino Florence Italy
7. School of Chemistry; The University of Nottingham; University Park Nottingham NG7 2RD UK