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Related Concept Videos

Ionic Radii03:10

Ionic Radii

33.3K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
33.3K
Ionic Bonds00:42

Ionic Bonds

129.4K
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...
129.4K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.0K
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...
20.0K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.1K
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.
68.1K
Ionic Crystal Structures02:42

Ionic Crystal Structures

16.9K
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...
16.9K
Ionic Compounds: Formulas and Nomenclature03:34

Ionic Compounds: Formulas and Nomenclature

86.2K
An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
86.2K

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Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
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Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids

Published on: August 10, 2016

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Dimension control of ionic liquids.

Takahiro Ichikawa1, Takashi Kato2, Hiroyuki Ohno3

  • 1Department of Biotechnology, Tokyo University of Agriculture and Technology, Nakacho, Koganei, Tokyo 184-8588, Japan. t-ichi@cc.tuat.ac.jp ohnoh@cc.tuat.ac.jp and Functional Ionic Liquid Laboratories (FILL), Nakacho, Koganei, Tokyo 184-8588, Japan and JST, PRESTO, Honcho, Kawaguchi, Saitama, 332-0012, Japan.

Chemical Communications (Cambridge, England)
|July 2, 2019
PubMed
Summary
This summary is machine-generated.

Researchers organized ionic liquids into dimensionally ordered states by imparting liquid-crystalline properties. This resulted in novel nanostructured ionic materials with unique, enhanced functions for materials science innovation.

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry

Background:

  • Ionic liquids are versatile soft compounds with significant potential for materials science innovation.
  • Organizing ionic liquids into dimensionally ordered states is crucial for advancing their functionalities.
  • Liquid-crystalline properties offer a pathway to achieve controlled organization of ionic liquids.

Purpose of the Study:

  • To present the organization of ionic liquids by utilizing their liquid-crystalline properties.
  • To highlight the development of nanostructured ionic materials derived from functional ionic liquids.
  • To explore the unique and enhanced functions of these organized ionic materials.

Main Methods:

  • Endowing functional ionic liquids with liquid-crystalline properties.
  • Developing various nanostructured ionic materials through controlled organization.
  • Characterizing the properties and functions of the resulting materials.

Main Results:

  • Successful organization of ionic liquids into dimensionally ordered states.
  • Creation of diverse nanostructured ionic materials with tailored architectures.
  • Demonstration of unique and enhanced functionalities arising from the organized structures.

Conclusions:

  • Organizing ionic liquids via liquid-crystalline properties is an effective strategy for creating advanced materials.
  • Nanostructured ionic materials exhibit significant potential for various applications.
  • Further exploration of organized ionic liquids can drive innovation in materials science.