1. University of Coimbra, CQC-IMS, Department of Chemistry, P-3004-535 Coimbra, Portugal
2. CMIC, Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, 20133 Milano, Italy
3. University of Coimbra, CFisUC, Department of Physics, P-3004-516 Coimbra, Portugal