Neutral cryptand-like cyclic peptide-thiourea receptors for selective recognition of sulphate anions in aqueous solvents

作者：Young Philip G; Clegg Jack K; Jolliffe Katrina A^*

来源：Supramolecular Chemistry, 2012, 24(2): 77-87.

DOI：10.1080/10610278.2011.622388

• anion recognition
• thiourea
• cyclic peptide
• sulphate

The synthesis and anion complexation properties of two hybrid cyclic peptide-thiourea cryptands have been studied. Receptors encapsulate sulphate via nine hydrogen bonds and show selectivity for this anion in solvent mixtures containing up to 20% H2O/deuterodimethyl sulphoxide. In this solvent mixture, chloride, bromide and acetate are encapsulated via six hydrogen bonds and with lower affinity than sulphate.

• 出版日期2012