Molecular Tweezers as Synthetic Receptors: Molecular Recognition of Electron-Deficient Aromatic and Aliphatic Substrates

Abstract

The molecular tweezers 1 and 2 are selective receptors for electron-deficient aromatic and aliphatic substrates forming, for example, complexes with onium salts such as N-methylpyrazinium iodide, depending on the size and the electrostatic potential of the receptor cavity and the substrate.