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Updated: Jul 19, 2026

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
Simplification of the 1H NMR spectra of enantiomers dissolved in chiral liquid crystals, combining variable angle
Laetitia Beguin1, Jacques Courtieu, Latifa Ziani
1Laboratoire de RMN en milieu orienté, Univ. Paris-Sud XI, ICMMO, UMR 8182 CNRS, 91405, Orsay Cedex, France.
Abstract:
This work presents a technique to simplify overcrowded proton spectra in chiral liquid crystal solvents using rotation of the sample near the magic angle, VASS, combined with homonuclear selective refocusing 2D NMR experiments, SERF. This methodology provides a powerful tool to visualise enantiomers out of unresolved proton spectra. A modified SERF sequence is presented where the resulting 2D spectrum can be phased to increase the resolution. Accurate enantiomeric excesses are determined that are not possible to measure on static samples. Two examples are presented.
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