ArticleFluid phase equilibria2017
Solvatochromic parameters of deep eutectic solvents formed by ammonium-based salts and carboxylic acids.
Article in Fluid phase equilibria, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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19 citing papers in PubMed.
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- Solvatochromic Polarity, Physicochemical Properties, and Spectral Analysis of New Triple NADES-Based on Urea-Glycerol.Molecules (Basel, Switzerland) · 2026Article
- Probing molecular interactions of cellulose fibers with isomeric deep eutectic solvents using NMR spectroscopy.Cellulose (London, England) · 2026Article
- Current Status and Future Perspectives of Betaine and Betaine-Based Natural Deep Eutectic Solvents: A Review.Foods (Basel, Switzerland) · 2025Review
- Unlocking the full compositional control of hydrophilic and hydrophobic deep eutectic solvents over protein structure and stability.Communications chemistry · 2025Article
- New Horizon in Selective Tocols Extraction from Deodorizer Distillates Under Mild Conditions by Using Deep Eutectic Solvents.Molecules (Basel, Switzerland) · 2025Review
- NaDES Application in Cosmetic and Pharmaceutical Fields: An Overview.Gels (Basel, Switzerland) · 2024Review
- Trace Water Changes Metal Ion Speciation in Deep Eutectic Solvents: CeInorganic chemistry · 2023Article
- Rutin: Family Farming Products' Extraction Sources, Industrial Applications and Current Trends in Biological Activity Protection.Molecules (Basel, Switzerland) · 2023Review
- Deep Eutectic Solvents: Properties and Applications in COMolecules (Basel, Switzerland) · 2023Review
- Solubility of Amino Acids in the Eutectic Solvent Constituted by Sodium Acetate Trihydrate and Urea and in Its Mixture with Water.International journal of molecular sciences · 2023Article
- Neutron Diffraction Study of Indole Solvation in Deep Eutectic Systems of Choline Chloride, Malic Acid, and Water.Chemistry (Weinheim an der Bergstrasse, Germany) · 2022Article
- Insights into the relationships between physicochemical properties, solvent performance, and applications of deep eutectic solvents.Environmental science and pollution research international · 2021Review
- Article
- Utilization of Deep Eutectic Solvents to Reduce the Release of Hazardous Gases to the Atmosphere: A Critical Review.Molecules (Basel, Switzerland) · 2020Review
- Use of Deep Eutectic Solvents in Polymer Chemistry-A Review.Molecules (Basel, Switzerland) · 2019Review
- A Method of Calculating the Kamlet-Abboud-Taft Solvatochromic Parameters Using COSMO-RS.Molecules (Basel, Switzerland) · 2019Article
- Systematic evaluation of hydrophobic deep-melting eutectics as alternative solvents for the extraction of organic solutes from aqueous solution.RSC advances · 2019Article
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6 authors.
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Abstract
Deep eutectic solvents (DES) have been studied in a wide range of applications, and despite their potential as sustainable solvents, detailed knowledge on their solvatochromic parameters is still lacking. To overcome this problem, in this work, the Kamlet Taft (KT) solvatochromic parameters, namely the hydrogen-bond acidity, hydrogen-bond basicity and dipolarity/polarizability, of a wide range of DES composed of ammonium-based salts as hydrogen bond acceptors (HBAs), and carboxylic acids as hydrogen bond donors (HBDs), were determined aiming at better understanding the influence of the chemical structure of the DES components on their polarity. It is shown that the high acidity of the DES investigated is mainly provided by the organic acid present in the mixture, and that an increase of the alkyl side chain of both the HBA and the HBD species leads to a lower ability of the solvent to donate protons. On the other hand, the ammonium salt plays the major role on the hydrogen-bond basicity of DES. Contrarily to the hydrogen-bond acidity, an increase in the length of the aliphatic moieties of both the carboxylic acid and salt cation results in solvents with higher ability to accept protons. The dipolarity/polarizability of DES is mainly defined by the ionic species present, and tend to decrease with the increase of the aliphatic moiety of the organic acid. In general, DES composed of ammonium-based salts and carboxylic acids present a higher capacity to donate and accept protons when compared to most of the ionic liquids or organic molecular solvents.
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