Hydrogen-bonded architecture based on p-sulfonatothiacalix[6]arene complex with dysprosium(III) cations and water molecules

The structure of p-sulfonatothiacalix[6]arene (1) inclusion complex with two octa-aqua dysprosium metal cations and 15 water molecules was examined by single-crystal X-ray diffraction studies. The complex showed a 2D hydrogen-bonded polymer with hydrogen bonding interactions between aquo ligands of dysprosium metal cations and sulfonate groups of thiacalixarene. In addition, it shows direct evidence for hydrogen bonding between the imbedded water and the aromatic π electrons.