Abstract
Synthesis of glycoluril tetramer bearing hydrogen atoms on its convex face and framed by two xylylene units is reported. This tetramer forms dimeric aggregates in the solid state. Host–guest properties of the tetramer with various ammonium and pyridinium guests were determined using 1H NMR spectroscopy. The results were compared with structurally related host molecules.
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Acknowledgements
Support for this work was provided by the Czech Science Foundation (P207/10/0695) and the project CETOCOEN (no. CZ.1.05/2.1.00/01.0001) from the European Regional Development Fund. LG thanks the programme of ‘Employment of Newly Graduated Doctors of Science for Scientific Excellence’ (grant number CZ.1.07/2.3.00/30.009) co-financed from European Social Fund and the state budget of the Czech Republic.