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Related Concept Videos

Micelles01:30

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
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The word “nucleophile” has a Greek root and translates to nucleus-loving. Nucleophiles are either negatively charged or neutral species with a pair of electrons in a high-energy occupied molecular orbital (HOMO). As these species tend to donate electron pairs, nucleophiles are considered Lewis bases as well. Negatively charged species, like OH−, Cl−, or HS−, with one or several pairs of electrons, are typically nucleophiles. Similarly, neutral species such as ammonia, amines, water, and alcohol...
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Solubility03:00

Solubility

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).
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Intermolecular Forces

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The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called the...

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Updated: Jun 6, 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

Amphiphilicity determines nanostructure in protic ionic liquids.

Robert Hayes1, Silvia Imberti, Gregory G Warr

  • 1Centre for Organic Electronics, Chemistry Building, The University of Newcastle, NSW 2308, Callaghan, Australia.

Physical Chemistry Chemical Physics : PCCP
|December 7, 2010
PubMed
Summary
This summary is machine-generated.

The structure of ethylammonium nitrate (EAN) and ethanolammonium nitrate (EtAN) ionic liquids was studied. EAN forms a microemulsion-like network, while EtAN forms small ion clusters due to alcohol group interference.

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Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes
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Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Published on: February 19, 2016

Area of Science:

  • Physical Chemistry
  • Materials Science
  • Chemical Physics

Background:

  • Ionic liquids (ILs) are salts that are liquid at room temperature.
  • Understanding the bulk structure of ILs is crucial for their application.
  • Ethylammonium nitrate (EAN) and ethanolammonium nitrate (EtAN) are foundational ILs.

Purpose of the Study:

  • To elucidate the bulk structural properties of EAN and EtAN.
  • To compare the structural differences between EAN and EtAN.
  • To investigate the influence of the alcohol moiety in EtAN on IL structure.

Main Methods:

  • Neutron diffraction was employed to probe the structure of EAN and EtAN.
  • Empirical Potential Structure Refinement (EPSR) modeling was used to analyze diffraction spectra.
  • Analysis focused on identifying long-range order and nanoscale structural features.

Main Results:

  • EAN exhibits a long-range solvophobic structure, resembling a bicontinuous microemulsion or L(3)-sponge phase with ~1 nm domain size.
  • The alcohol (-OH) group in EtAN disrupts cation alkyl chain association.
  • EtAN forms small, discrete clusters of ions instead of an extended network.

Conclusions:

  • The molecular structure of ILs significantly dictates their bulk organization.
  • Solvophobic effects play a key role in the self-assembly of EAN.
  • The presence of functional groups, like the alcohol moiety in EtAN, can fundamentally alter IL network formation.