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Use of Diethanolamine as a Viscous Solvent for Mixture Analysis by Multidimensional Heteronuclear ViscY NMR Experiments

Abstract : The use of diethanolamine/DMSO-d 6 as viscous binary solvent is reported for the individualization of low-polarity mixture components by heteronuclear ViscY NMR experiments under spin diffusion conditions. Solvent viscosity induces the slowing down of molecular tumbling, hence promoting magnetization transfer by dipolar longitudinal cross-relaxation. As a result, all 1 H nuclei resonances within the same molecule may correlate in a 2D NOESY spectrum, giving access to mixture analysis. We state the individualization of four low-polarity chemical compounds dissolved in diethanolamine/DMSO-d 6 solvent blend using homonuclear selective 1D and 2D 1 H and 19 F NOESY and HOESY experiments and heteronuclear
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https://hal.univ-reims.fr/hal-03704919
Contributor : Jean-Marc Nuzillard Connect in order to contact the contributor
Submitted on : Sunday, June 26, 2022 - 1:36:13 PM
Last modification on : Friday, August 5, 2022 - 11:22:52 AM

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Ritchy Leroy, Francois Pedinielli, Gautier Bourbon, Jean-Marc Nuzillard, Pedro Lameiras. Use of Diethanolamine as a Viscous Solvent for Mixture Analysis by Multidimensional Heteronuclear ViscY NMR Experiments. Analytical Chemistry, American Chemical Society, In press, ⟨10.1021/acs.analchem.2c00536⟩. ⟨hal-03704919⟩

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