1. Sao Carlos Institute of Physics, University of Sao Paulo, São Carlos, SP, Brazil
2. ENFOCAT-IN2UB, Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Catalunya, Spain
3. Modeling and Molecular Simulation Group, São Paulo State University, 01049-010 Bauru, SP, Brazil
4. Department of Chemistry, Federal University of Sao Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil