1. ‘Babes-Bolyai’ University; ‘Raluca Ripan’ Institute for Research in Chemistry; Fântânele 30 400294 Cluj-Napoca Romania
2. National Institute for R&D for Isotopic and Molecular Technologies; Donath 71-103 400293 Romania
3. Institute of Material Science of Barcelona; Campus de la UAB 08193 Bellaterra Spain