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Related Concept Videos

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...
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
Diels–Alder Reaction: Characteristics of Dienes01:29

Diels–Alder Reaction: Characteristics of Dienes

The Diels–Alder reaction brings together a diene and a dienophile to form a six-membered ring. Both components have unique characteristics that influence the rate of the reaction.
Characteristics of the diene
Conformation
The simplest example of a diene is 1,3-butadiene, an acyclic conjugated π system. At room temperature, the molecule exists as a mixture of s-cis and s-trans conformers by virtue of rotation around the carbon–carbon single bond. Although the s-trans isomer is more stable, the...
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions.
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.

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Updated: Jul 12, 2026

Green Synthesis of Quinoline-Based Ionic Liquid
05:59

Green Synthesis of Quinoline-Based Ionic Liquid

Published on: September 27, 2024

Dicationic ionic liquids as green functional materials.

David King1, Haesook Han1, Pradip K Bhowmik1

  • 1Department of Chemistry and Biochemistry 4505 S. Maryland Parkway, Box 454003 Las Vegas NV 89154 USA pradip.bhowmik@unlv.edu.

RSC Advances
|July 10, 2026
PubMed
Summary

Dicationic ionic liquids (DILs) offer greener alternatives to traditional monocationic ionic liquids (MILs) in various applications. This review highlights DILs' versatility and advocates for their increased use in environmentally conscious chemistry.

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Area of Science:

  • * Materials Science and Chemistry: Focus on ionic liquids (ILs) and their applications.
  • * Green Chemistry: Emphasis on environmentally friendly chemical practices and design.

Background:

  • * Ionic liquids (ILs) are widely used in synthesis, processing, energy, and medicine.
  • * Monocationic ionic liquids (MILs) have been extensively studied, but face environmental concerns.
  • * Dicationic ionic liquids (DILs) are less explored but offer environmental and structural advantages.

Purpose of the Study:

  • * To review the broad applicability of dicationic ionic liquids (DILs).
  • * To focus on environmentally conscious design strategies for future IL chemistry.
  • * To advocate for greener approaches in the design, development, and application of ILs.

Main Methods:

  • * Literature review of dicationic ionic liquids (DILs).
  • * Analysis of environmental impact and versatility compared to monocationic ionic liquids (MILs).
  • * Examination of design strategies for greener ILs.

Main Results:

  • * DILs are less environmentally harmful, more versatile, and structurally diverse than MILs.
  • * DILs remain underrepresented in scientific literature despite their benefits.
  • * Growing concerns about MILs' environmental impact are increasing interest in alternatives like DILs.

Conclusions:

  • * DILs present a promising avenue for sustainable chemistry.
  • * Further research and development are needed to fully realize the potential of DILs.
  • * Adopting greener design principles is crucial for the future of IL chemistry.