1. Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais 38400-902, Brazil
2. Department of Mathematics and Natural Sciences, Púnguè University, National Street, Chimoio, Manica 2202, Mozambique
3. Department of Fundamental Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Prof. Lineu Prestes 748, Butantã, São Paulo, São Paulo 05508-000, Brazil