1. Department of General and Inorganic ChemistryUniversity of Pardubice 53210 Pardubice Czech Republic
2. Institute of Organic Chemistry and TechnologyUniversity of Pardubice 53210 Pardubice Czech Republic
3. Eenheid Algemene Chemie (ALGC)Vrije Universiteit Brussel Pleinlaan 2 1050 Brussels Belgium