1. Department of Inorganic and Analytical Chemistry; Budapest University of Technology and Economics; Szt. Gellért tér 4 Budapest H-1111 Hungary
2. Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences; Magyar Tudósok körútja 2 Budapest H-1117 Hungary
3. MTA-SZTE Stereochemistry Research Group; Dóm tér 8 Szeged H-6720 Hungary