Rigid, biconical hydrogen-bonded dimers that strongly encapsulate cationic guests in solution and the solid state
Jordan N. Smith, Courtney Ennis, Nigel T. Lucas
Abstract
H and DOSY NMR spectroscopic experiments show that the cavitand readily dimerizes through an unusual seam of interdigitated hydrogen-bonds that is resistant to disruption by polar co-solvents. The well-defined cavity encapsulates small cationic guests, but not their neutral counterparts, restricting the conformation of sequestered tetraethylammonium in solution and the solid state.
Topics & Concepts
Cationic polymerizationSolid-stateSolid hydrogenHydrogenMaterials sciencePolymer sciencePolymer chemistryHydrogen bondChemistryOrganic chemistryPhysical chemistryMoleculeSupramolecular Chemistry and ComplexesMolecular Sensors and Ion DetectionCrystallography and molecular interactions