1. Laboratory for Chemistry of Novel Materials; University of Mons; Place du Parc 20 7000 Mons Belgium
2. Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus Universitari de UAB; 08193 Cerdanyola del Vallès (Barcelona) Spain
3. Current affiliation: ETH Zurich; Vladimir-Prelog-Weg 1-5/10 8093 Zurich Switzerland