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Manjunatha Reddy G. N., Rafael Ballesteros-Garrido, Prof. Jérôme Lacour and Prof. Stefano Caldarelli Determination of Labile Chiral Supramolecular Ion Pairs by Chromatographic NMR Spectroscopy Angewandte Chemie International Edition 52

Version of Record online: 30 JAN 2013 | DOI: 10.1002/anie.201209616

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Chiral recognition: Silica-enhanced NMR diffusometry can distinguish the signals of diastereoisomeric mixtures of supramolecular ion pairs (see picture; DOSY=diffusion-ordered spectroscopy). The experiment has a shorter timescale than liquid chromatography, thus allowing an easier characterization of species that are even configurationally labile on the minutes timescale.

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