1. Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)/CIBER-BBN, Campus
de Bellaterra, E-08193 Cerdanyola del Vallès, Spain
2. Dipartimento Chimica, GIAF, Parma University/INSTM-UdR, I-4310, Parma, Italy
3. Institute of Inorganic Chemistry, Leibniz University Hannover, Callinstr. 9, D-30167
Hannover, Germany
4. Serveis
Científico-Tècnics,
Campus de Montilivi, University of Girona, E-17071 Girona, Spain