1. CIRCC; Via Celso Ulpiani, 27 70126 Bari Italy
2. IC R, Tecnopolis; km 3 via Casamassima 70018 Valenzano (BA) Italy
3. Department of Chemistry; University of Bari; Campus Universitario 70126 Bari Italy
4. Institute of Particle Technology (LFG); Cauerstrasse 4D 91058 Erlangen Germany