[1] Slovak Tech Univ FCHPT, Inst Phys Chem, Inst Inorgan Chem, SK-81237 Bratislava, Slovakia
[2] Univ SS Cyril & Methodius, Dept Chem, Trnava, Slovakia
[3] Univ Versailles, Lab GEMAC, UMR CNRS 86, F-78035 Versailles, France
[4] Leibniz Univ Hannover, Inst Inorgan Chem, D-30167 Hannover, Germany