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Solution phase measurement of both weak sigma and C-H...X- hydrogen bonding interactions in synthetic anion receptors
Orion B Berryman1, Aaron C Sather, Benjamin P Hay
1Department of Chemistry and Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253, USA.
Abstract:
A series of tripodal receptors preorganize electron-deficient aromatic rings to bind halides in organic solvents using weak sigma anion-to-arene interactions or C-H...X- hydrogen bonds. 1H NMR spectroscopy proves to be a powerful technique for quantifying binding in solution and determining the interaction motifs, even in cases of weak binding.
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