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Related Concept Videos

Solvents01:12

Solvents

68.2K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
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Entropy and Solvation02:05

Entropy and Solvation

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The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for determining a solvent for a given compound is that like dissolves like. A good solvent has molecular characteristics similar to those of the compound to be dissolved. For example, polar solutions dissolve polar solutes, and apolar solvents dissolve apolar solutes. A polar solvent is a solvent that has a high dielectric constant (ϵ...
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Solvating Effects02:12

Solvating Effects

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An understanding of the solvating effect helps rationalize the relation between solvation and acidity of the compound. In addition, this also explains the relative stability of conjugate bases for compounds with different pKa values. This lesson details, in-depth, the principle of solvating effects. The strength of an acid and the stability of its corresponding conjugate base are determined using pKa values. This observed relationship is a consequence of solvation, which is the interaction...
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Solubility03:00

Solubility

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Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
19.5K
Stereochemical Effects of Enolization01:12

Stereochemical Effects of Enolization

2.2K
The chiral α-carbon of the carbonyl compound is the stereocenter of the molecule. As shown in the figure below, when such a carbonyl compound undergoes racemization under an acidic or basic condition, an achiral enol is formed.
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Physical Properties of Ethers02:17

Physical Properties of Ethers

7.6K
Overview
An ether molecule has a net dipole moment due to the polarity of C–O bonds. Subsequently, boiling points of ethers are lower than those of alcohols of comparable molecular weight and slightly higher than those of hydrocarbons of comparable molecular weight (Table 1).
Ethers can act as hydrogen bond acceptors, making them more water-soluble than hydrocarbons, but since ethers cannot act as hydrogen bond donors, they are much less soluble in water than alcohols. Ethers are considered...
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Preparation of Binary and Ternary Deep Eutectic Systems
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Theoretical insights into the cineole-based deep eutectic solvents.

Sara Rozas1, Noor Alomari2, Mert Atilhan2

  • 1Department of Chemistry, University of Burgos, 09001 Burgos, Spain.

The Journal of Chemical Physics
|July 9, 2021
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Summary
This summary is machine-generated.

This study explores cineole-based deep eutectic solvents, revealing strong hydrogen bonding that influences fluid properties. These findings highlight cineole as a sustainable component for developing eco-friendly solvents.

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Area of Science:

  • Physical Chemistry
  • Materials Science
  • Green Chemistry

Background:

  • Deep eutectic solvents (DES) are gaining attention as sustainable alternatives to traditional solvents.
  • Cineole, a natural cyclic ether, is investigated as a hydrogen bond acceptor in DES formulations.
  • Understanding hydrogen bonding is crucial for predicting and controlling DES properties.

Purpose of the Study:

  • To theoretically investigate deep eutectic solvents utilizing cineole as a hydrogen bond acceptor.
  • To analyze the nature, strength, and extent of hydrogen bonding interactions within these DES.
  • To quantify the role of hydrogen bonding in determining the macroscopic properties of cineole-based DES.

Main Methods:

  • Density Functional Theory (DFT) for small molecular cluster analysis.
  • Atoms in Molecule (AIM) theory for topological characterization of intermolecular forces.
  • Classical Molecular Dynamics (MD) simulations for bulk liquid properties.

Main Results:

  • Detailed characterization of hydrogen bonding in cineole-based DES with succinic, malic, and lactic acids.
  • Quantification of hydrogen bond strength and its correlation with fluid properties.
  • MD simulations linked nanoscopic liquid behavior to macroscopic properties like density and thermal expansion.

Conclusions:

  • Cineole is a suitable and sustainable component for developing environmentally friendly deep eutectic solvents.
  • The theoretical approach provides valuable insights into the structure-property relationships of these novel DES.
  • This research supports the advancement of green chemistry through the design of biodegradable and efficient solvent systems.