1. Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853‐1301 (USA)
2. Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5–13, 81377 Munich (Germany)
3. Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, CE 60455‐970 (Brazil)
4. Department of Analytical Chemistry, Institute of Chemistry, Universidade Estadual de Campinas, 13083 Campinas (Brazil)