1. Department
of Chemistry, University of Pannonia, 8201
Veszprém, Hungary
2. Aix-Marseille Université, FR1739,
Spectropole, Campus St. Jérôme, Avenue Escadrille Normandie-Niemen,
13397 Marseille cedex 20, France
3. Chemical Research Center, Hungarian Academy of Sciences, 1525, Budapest, Hungary