1. Department of Chemistry Federal University of São Carlos – UFSCar Rodovia Washington Luís, km 235, SP-310, São Carlos 13565-905 São Paulo Brazil
2. Department of Chemistry Colorado State University 1301 Center Ave Ft. Collins CO 80523–1872 USA
3. Dpto. de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSI Universidad de Zaragoza. C/ Pedro Cerbuna 12 50009 Zaragoza Spain
4. Chemistry Institute University of Campinas – UNICAMP P.O. Box. 6154 13083-970 Campinas SP Brazil
5. Nanalysis Corp Bay 4, 4500 5 Street NE Calgary Alberta Canada