Enhanced anion recognition by ammonium [2]catenane functionalisation of a halogen bonding acyclic receptor

Journal article

Ammonium-dibenzo[24]crown-8 [2]catenane functionalisation of a 3,5-bis-iodotriazole-pyridine motif produces a potent halogen bonding (XB) receptor capable of binding anions in aqueous-acetone solvent mixtures of up to 20% water. Exploiting the kinetically inert nature of the mechanically bonded cationic ammonium [2]catenane substituents, the XB receptor is demonstrated to exhibit superior anion recognition behaviour in comparison to labile sodium cation complexed bis-benzo[15]crown-5 XB and HB triazole-pyridine heteroditopic receptor analogues.

Authors: Bunchuay, T; Khianjinda, T; Srisawat, P; Tse, YC; Gateley, C

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Royal Society of Chemistry
• Journal: Chemical Communications
• Volume: 59
• Issue: 91
• Pages: 13615-13618
• Publication date: 2023-11-14
• DOI: 10.1039/d3cc03269h
• EISSN: 1364-548X
• ISSN: 1359-7345
• Language: English
• Keywords: Salt (chemistry); Ammonium; Ion; Solvent; Inorganic chemistry; Cationic polymerization; Pyridine; Hydrogen bond; Stereochemistry; Molecule; Polymer chemistry; Chemistry; Catenane; Aqueous solution; Organic chemistry; Medicinal chemistry; Halogen bond; Combinatorial chemistry; Halide