1. Department of Fundamental
Chemistry, Federal University of Pernambuco, Cidade Universitária, Recife PE 50740-560, Brazil
2. Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
3. Dipartimento di Chimica e Biologia, Università di Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano, Italy
4. Department of Chemistry and Centre for Theoretical and Computational Chemistry (CTCC), Sem
Saelands vei 26, 0371 Oslo, Norway