1. Galembetech Consultores e Tecnologia Ltda., Campinas 13080-650, Brazil
2. University of Campinas, Institute of Chemistry, P.O. Box 6154, Campinas 13083-970, Brazil
3. Department of Fundamental Chemistry, Federal University of Pernambuco, Recife 50740-560, Brazil
4. Department of Chemistry and Environmental Sciences, Ibilce, São Paulo State University (Unesp), São José do Rio Preto 15054-000, Brazil