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Related Concept Videos

Physical Properties of Ethers02:17

Physical Properties of Ethers

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...
Ethers from Alcohols: Alcohol Dehydration and Williamson Ether Synthesis02:29

Ethers from Alcohols: Alcohol Dehydration and Williamson Ether Synthesis

Overview
Ethers can be prepared from organic compounds by various methods. Some of them are discussed below,
Preparation of Ethers by Alcohol Dehydration
In this method, in the presence of protic acids, alcohol dehydrates to produce alkenes and ethers under different conditions. For example, in the presence of sulphuric acid, dehydration of ethanol at 413 K yields ethoxyethane, whereas it yields ethene at 443 K.
Ion Exchange01:17

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or basic...
Crown Ethers02:36

Crown Ethers

Crown ethers are cyclic polyethers that contain multiple oxygen atoms, usually arranged in a regular pattern. The first crown ether was synthesized by Charles Pederson while working at DuPont in 1967. For this work, Pedersen was co-awarded the 1987 Nobel Prize in Chemistry. Crown ethers are named using the formula x-crown-y, where x is the total number of atoms in the ring and y is the number of ether oxygen atoms. The term 'crown' refers to the crown-like shape that these ether molecules take.
Ionic Association01:28

Ionic Association

The ionic association is the association of oppositely charged ions in an electrolyte solution to form ion pairs. Bjerrum defined ion pairs as two oppositely charged ions whose electrostatic attraction exceeds the thermal energy of the system, typically expressed as 2kT. Electrostatic attraction depends on ionic charge, separation distance, and the dielectric constant of the medium. Thermal energy, represented by kT, reflects the tendency of ions to move independently due to molecular motion.
Intermolecular Forces03:13

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...

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Related Experiment Video

Updated: May 23, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

Ether- and alcohol-functionalized task-specific ionic liquids: attractive properties and applications.

Shaokun Tang1, Gary A Baker, Hua Zhao

  • 1Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China.

Chemical Society Reviews
|March 30, 2012
PubMed
Summary
This summary is machine-generated.

Designer ionic liquids (ILs) with ether and alcohol functionalities offer tunable physicochemical properties. This review highlights their diverse applications in chemistry, materials science, and sustainability, paving the way for future research.

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Area of Science:

  • Materials Science and Chemistry
  • Physical Chemistry
  • Chemical Engineering

Background:

  • Ionic liquids (ILs) are designer solvents with tunable properties, attracting significant research interest.
  • Existing reviews often lack a comprehensive focus on the designer aspect of ILs.
  • Ether- and alcohol-functionalized ILs represent a key subclass with unique characteristics.

Purpose of the Study:

  • To systematically review the physicochemical properties of ether- and alcohol-functionalized ILs.
  • To highlight the impact of ionic structure on IL properties like viscosity, phase behavior, and polarity.
  • To survey the diverse applications of these functionalized ILs across various scientific disciplines.

Main Methods:

  • Critical review of existing literature on functionalized ionic liquids.
  • Systematic survey of physicochemical properties (viscosity, density, thermal stability, etc.).
  • Analysis of structure-property relationships and application-driven performance.

Main Results:

  • Detailed examination of how ether and alcohol functionalities influence IL properties.
  • Comprehensive overview of applications including electrochemistry, separations, carbon capture, and biomass dissolution.
  • Discussion of related materials like anion-functionalized ILs and deep eutectic solvents (DESs).

Conclusions:

  • Oxy-functionalized designer ILs possess remarkable and versatile properties.
  • These ILs show significant promise for a wide range of advanced applications.
  • Further research, including in silico studies and new talent, is crucial for unlocking their full potential.