Phenol, the simplest aromatic monohydroxy alcohol, displays a faint Debye-like process when mixed with a nonassociating liquid

Hoffmann, Lars; Beerwerth, Joachim; Moch, Kevin; Böhmer, Roland

doi:10.1039/d3cp02774k

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Cited by 2 publications

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“…Similar to ref. 77, for β CD = 0.38 the value numerically obtained (see Fig. S2 of the ESI†) from eqn (8) is τ c ≈ 2.5 μs.…”

Section: Results and Analysesmentioning

confidence: 75%

Anion dynamics and motional decoupling in a glycerol–choline chloride deep eutectic solvent studied by one- and two-dimensional ³⁵Cl NMR

Hinz,

Beerwerth,

Böhmer

2023

Phys. Chem. Chem. Phys.

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“…Similar to ref. 77, for β CD = 0.38 the value numerically obtained (see Fig. S2 of the ESI†) from eqn (8) is τ c ≈ 2.5 μs.…”

Section: Results and Analysesmentioning

confidence: 75%

Anion dynamics and motional decoupling in a glycerol–choline chloride deep eutectic solvent studied by one- and two-dimensional ³⁵Cl NMR

Hinz,

Beerwerth,

Böhmer

2023

Phys. Chem. Chem. Phys.

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Interplay of ethaline and water dynamics in a hydrated eutectic solvent: Deuteron and oxygen magnetic resonance studies of aqueous ethaline

Hinz,

Böhmer

2024

The Journal of Chemical Physics

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For many technological processes, the impact of water addition on the properties of deep eutectic solvents is of central importance. In this context, the impact of hydration on the reorientational dynamics of the deep eutectic solvent (DES) ethaline, a 2:1 molar mixture of ethylene glycol and choline chloride, was studied. Its overall response was explored by means of shear mechanical rheology. To achieve component-selective insights into the dynamics of this material, isotope-edited deuteron and oxygen spin–lattice and spin–spin relaxometry, as well as stimulated-echo spectroscopy, were applied and yielded motional correlation times from above room temperature down to the highly viscous regime. For all temperatures, the cholinium anion was found to reorient about two times slower than ethylene glycol, while the water and the ethylene glycol molecules display very similar mobilities. While hydration enhances the component dynamics with respect to that of dry ethaline, the present findings reveal that it does not detectably increase the heterogeneity of the solvent. Merely, the time scale similarity that is found for the hydrogen bond donor and the water molecules over a particularly wide temperature range impressively attests to the stability of the native solvent structure in the “water-in-DES” regime.

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Phenol, the simplest aromatic monohydroxy alcohol, displays a faint Debye-like process when mixed with a nonassociating liquid

Abstract: Hydrogen-bonding in phenol, solvated in propylene carbonate, generates a weak supramolecular Debye process resembling that of aliphatic monohydroxy alcohols.

Cited by 2 publications

References 134 publications

Anion dynamics and motional decoupling in a glycerol–choline chloride deep eutectic solvent studied by one- and two-dimensional ³⁵Cl NMR

Anion dynamics and motional decoupling in a glycerol–choline chloride deep eutectic solvent studied by one- and two-dimensional ³⁵Cl NMR

Interplay of ethaline and water dynamics in a hydrated eutectic solvent: Deuteron and oxygen magnetic resonance studies of aqueous ethaline

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Phenol, the simplest aromatic monohydroxy alcohol, displays a faint Debye-like process when mixed with a nonassociating liquid

Abstract: Hydrogen-bonding in phenol, solvated in propylene carbonate, generates a weak supramolecular Debye process resembling that of aliphatic monohydroxy alcohols.

Cited by 2 publications

References 134 publications

Anion dynamics and motional decoupling in a glycerol–choline chloride deep eutectic solvent studied by one- and two-dimensional 35Cl NMR

Anion dynamics and motional decoupling in a glycerol–choline chloride deep eutectic solvent studied by one- and two-dimensional 35Cl NMR

Interplay of ethaline and water dynamics in a hydrated eutectic solvent: Deuteron and oxygen magnetic resonance studies of aqueous ethaline

Contact Info

Product

Resources

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Anion dynamics and motional decoupling in a glycerol–choline chloride deep eutectic solvent studied by one- and two-dimensional ³⁵Cl NMR

Anion dynamics and motional decoupling in a glycerol–choline chloride deep eutectic solvent studied by one- and two-dimensional ³⁵Cl NMR