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Related Concept Videos

Ionic Crystal Structures02:42

Ionic Crystal Structures

16.4K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
16.4K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

19.5K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
19.5K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

48.0K
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. 
48.0K
Ionic Bonds00:42

Ionic Bonds

126.8K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
126.8K
Ion Exchange01:17

Ion Exchange

966
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...
966
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

67.5K
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.
67.5K

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Related Experiment Video

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

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Functional Ionic Liquid Crystals.

Krishnachary Salikolimi1, Achalkumar Ammathnadu Sudhakar2, Yasuhiro Ishida1

  • 1RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.

Langmuir : the ACS Journal of Surfaces and Colloids
|September 15, 2020
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Summary

Ionic liquid crystals combine properties of ionic liquids and liquid crystals, enabling diverse applications. This review comprehensively covers their uses in materials chemistry, from separation membranes to optoelectronics.

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Area of Science:

  • Materials Chemistry
  • Soft Matter Physics

Background:

  • Ionic liquid crystals (ILCs) are functional soft materials merging ionic liquid and liquid crystal properties.
  • Key characteristics include tunable nanostructures, polar nanochannels, and miscibility.
  • ILCs offer unique advantages for advanced material applications.

Purpose of the Study:

  • To provide a comprehensive overview of the diverse applications of ionic liquid crystals.
  • To consolidate information on ILCs' functional roles across various scientific domains.
  • To highlight the potential of ILCs beyond their fundamental properties.

Main Methods:

  • Literature review of recent advancements in ionic liquid crystal research.
  • Analysis of studies focusing on the application-oriented aspects of ILCs.
  • Synthesis of information regarding ILCs in guest binding, separation, ion conduction, and optoelectronics.

Main Results:

  • ILCs serve as versatile host frameworks for guest binding.
  • They are effective in separation membranes and ion-/proton-conducting membranes.
  • ILCs function as advanced reaction media and optoelectronic materials.

Conclusions:

  • Ionic liquid crystals possess a broad spectrum of applications due to their unique properties.
  • This review consolidates current applications, emphasizing their significance in materials chemistry.
  • Further research into ILCs promises innovative solutions in various technological fields.