Thermodynamics of Anion Binding by (Thio)ureido-calix[4]arene Derivatives in Acetonitrile.

ABSTRACT: In this work, we developed (thio)ureido-calix[4]arene derivatives and thoroughly explored their anion-binding properties in acetonitrile. A series of anions, including important inorganic ones (Cl^-, HSO₄ ^-, H₂PO₄ ^-, and HP₂O₇ ^3-) and several ever-present carboxylates (acetate, benzoate, and fumarate), were studied. All systems were investigated by several methods (NMR, ITC, and UV) used in a synergistic fashion, providing their comprehensive thermodynamic description. Acidities of the receptors were determined prior to the anion-binding studies and considered in the data-handling procedures. Complexes of various stoichiometries were detected and the driving force for their formation elucidate

SUBMITTER: Cvetnic M 

PROVIDER: S-EPMC11613299 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature