1. Department
of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
2. Chemistry
Department, Bowling Green State University, Overman Hall, Bowling Green, Ohio 43403, United States
3. Fritz
Haber Center for Molecular Dynamics, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
4. Dipartimento
di Biotecnologie, Chimica e Farmacia, Università di Siena, via A. Moro
2, 53100 Siena, Italy