Hydrophobic non-ionic (type V) deep eutectic solvents (DESs) have recently emerged as a new class of sustainable materials that have shown unique properties in several applications. In this study, type V DESs thymol : camphor, menthol : thymol and eutectic mixtures (EMs) based on menthol : carboxylic acids with variable chain length, are experimentally investigated using xenon NMR spectroscopy, with the aim to clarify the peculiar nanostructure of these materials. The results, obtained from the analysis of the 129Xe chemical shifts and of the longitudinal relaxation times, reveal a correlation between the deviation from ideality of the DESs and their structure free volume. Furthermore, the effect of varying the composition of DESs and EMs on the liquid structure is also studied.

Boventi, M., Mauri, M., Castiglione, F., Simonutti, R. (2024). Exploring the structure of type V deep eutectic solvents by xenon NMR spectroscopy. FARADAY DISCUSSIONS, 253, 118-128 [10.1039/d4fd00083h].

Exploring the structure of type V deep eutectic solvents by xenon NMR spectroscopy

Boventi M.;Mauri M.;Simonutti R.
2024

Abstract

Hydrophobic non-ionic (type V) deep eutectic solvents (DESs) have recently emerged as a new class of sustainable materials that have shown unique properties in several applications. In this study, type V DESs thymol : camphor, menthol : thymol and eutectic mixtures (EMs) based on menthol : carboxylic acids with variable chain length, are experimentally investigated using xenon NMR spectroscopy, with the aim to clarify the peculiar nanostructure of these materials. The results, obtained from the analysis of the 129Xe chemical shifts and of the longitudinal relaxation times, reveal a correlation between the deviation from ideality of the DESs and their structure free volume. Furthermore, the effect of varying the composition of DESs and EMs on the liquid structure is also studied.
Articolo in rivista - Articolo scientifico
Xenon NMR; Deep eutectic solvents
English
30-mag-2024
2024
253
118
128
open
Boventi, M., Mauri, M., Castiglione, F., Simonutti, R. (2024). Exploring the structure of type V deep eutectic solvents by xenon NMR spectroscopy. FARADAY DISCUSSIONS, 253, 118-128 [10.1039/d4fd00083h].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/501059
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