1. Department of Inorganic Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava , Slovakia
2. Department of Physical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava , Slovakia
3. Department of Chemistry, University of SS Cyril and Methodius in Trnava, J. Herdu 2, 917 01 Trnava , Slovakia