1. Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
2. Department of Chemistry, Ghent University, Krijgslaan 281, B-9000 Ghent, Belgium
3. Institute of Chemistry, Fluminense Federal University, Outeiro de São João Batista s/n, 24020-141 Niterói-RJ, Brazil
4. Federal University of São Paulo, Institute of Science and Technology, R. Talim 330, 12231-280, São José dos Campos-SP, Brazil