Geometry of Hydrogen Bonds in Liquid Ethanol Probed by Proton NMR Experiments

Quantitative information of hydrogen bonding is crucial to our understanding of the structure and properties of associated liquids. Here, we outline a simple procedure to establish the geometry of hydrogen bonds in liquid ethanol using proton nuclear magnetic resonance (NMR) spectroscopy. We do so by exploiting differences in proton chemical shift values, that originate from the secondary isotope effect, to distinguish the methyl and hydroxyl...