1. Department of Physics, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil, Department of Chemistry, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil, Department of Physics, Universidade Federal do Paraná, Curitiba, PR, 81531-990, Brazil, and Department of Chemistry, Yale University, P.O. Box, 208107, New Haven, Connecticut 06520-8107