1. Dept. Chem., Mater., and Chem. Eng. “Giulio Natta”Politecnico di Milano Via L. Mancinelli 7 20131 Milano Italy
2. Istituto di Scienze e Tecnologie ChimicheNational Research Council of Italy Via M. Bianco 9 20131 Milano Italy
3. Elettra – Sincrotrone Trieste S.S. 14 Km 163.5 in Area Science Park 34149 Basovizza – Trieste Italy
4. Laboratoire de Physique et Chimie ThéoriquesUniversité de Lorraine and CNRS UMR CNRS 7019 1 Boulevard Arago 57078 Metz France
5. Fondazione IRCCS Istituto Neurologico “Carlo Besta” Via G. Celoria 11 20133 Milan Italy