1. Department of Organic and Industrial
Chemistry, University of Parma, and INSTM, UdR Parma, Parco Area delle Scienze 17A, 43124 Parma, Italy
2. Chemistry for Technologies Laboratory, University of Brescia, Via Branze 38, 25123 Brescia,
Italy
3. Department Chemie, Technische Universität München, D-85747
Garching, Germany