1. Departament
de Química Biològica i Modelització Molecular, IQAC−CSIC, c/Jordi Girona 18, E-08034 Barcelona, Spain
2. Department
of Chemistry, Edinboro University of Pennsylvania, Edinboro, Pennsylvania 16444, United States
3. Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
4. Equipe
de Chimie et Biochimie Théoriques, SRSMC, University of Lorraine, CNRS, BP 70239, 54506 Vandoeuvre-les-Nancy, France