1. Institute for Chemistry, Technische Universität Chemnitz, Straße der Nationen 62, D-09111 Chemnitz, Germany
2. Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L. Giorgieri 1, I-34127 Trieste, Italy
3. Aarhus Institute of Advanced Studies, Aarhus University, Høegh-Guldbergs
Gade 6B, DK-8000 Aarhus C, Denmark