Fluoride-facilitated deuterium exchange from DMSO-d6 to polyamide-based cryptands |
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| Authors: | Kang Sung Ok VanderVelde David Powell Douglas Bowman-James Kristin |
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| Institution: | Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, USA. |
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| Abstract: | Multiple deuterium exchange between DMSO-d6 and amide hydrogens in two hexaamido cryptand fluoride receptors has been verified by 19F and 2H NMR and FAB mass spectral studies. Structural results for one of the complexes indicate a tricapped trigonal prism hydrogen bond coordination geometry around an encapsulated fluoride, with hydrogen bonds from fluoride to six amide and three phenyl hydrogens. |
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