1. Laboratoire de Chimie Supramoléculaire, ISIS Université de Strasbourg 8 Allée Gaspard Monge 67000 Strasbourg France
2. Present address: Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Viale F. Stagno d'Alcontres 31 98166 Messina Italy
3. Present address: Institute of Chemical Research of Catalonia (ICIQ) Avinguda Països Catalans 16 43007 Tarragona Spain
4. Present address: Faculty of Chemistry Adam Mickiewicz University Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
5. Present address: Centre for Advanced Technology Adam Mickiewicz University Uniwersytetu Poznańskiego 10 61-614 Poznań Poland
6. Present address: Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands