1. Centro Química Estrutural, Instituto Superior Técnico, TU Lisbon, Av. Rovisco Pais, 1049‐001 Lisboa, Portugal
2. Present address: Mass Spectrometry Laboratory, ITQB – UNL, Av. República, EAN, Apartado 127, 2781‐901 Oeiras, Portugal
3. Present address: Centro de Ciências Moleculares e Materiais, Faculdade de Ciências da Universidade de Lisboa,Ed. C8, Campo Grande, Campo Grande, 1749‐016 Lisboa, Portugal
4. Department of Inorganic and Analytical Chemistry University of Szeged, P. O. Box 440, 6701 Szeged, Hungary
5. Bioinorganic Chemistry Research Group of the Hungarian Academy of Sciences, Department of Inorganic and Analytical Chemistry, University of Szeged, P. O. Box 440, 6701 Szeged, Hungary
6. Departamento de Química Fundamental, Universidaded de Coruña, Campus de A Zapateira s/n, 15071 A Coruña, Spain