1. Department of Fundamental Chemistry, Institute of Chemistry; University of Sao Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo-SP Brazil
2. Brazilian Nanotechnology National Laboratory (LNNano-CNPEM); Rua Giuseppe Máximo Scolfaro 10000 13083-100 Campinas-SP Brazil
3. Institute of Physics “Gleb Wataghin” Condensed Matter Physics Department; State University of Campinas (UNICAMP); 13083-859 Campinas-SP Brazil
4. Nuclear and Energy Research Institute (IPEN-CQMA); Av. Prof. Lineu Prestes, 2242 05508-000 São Paulo-SP Brazil
5. Department of Fundamental Chemistry; Federal University of Pernambuco; 50670-901 Recife-PE Brazil
6. Department of Chemistry; Federal University of Paraiba; 58039-900 João Pessoa-PB Brazil