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Related Concept Videos

Molecular and Ionic Solids02:54

Molecular and Ionic Solids

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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...
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Ionic Crystal Structures02:42

Ionic Crystal Structures

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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...
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Structures of Solids02:22

Structures of Solids

14.1K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
14.1K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

41.6K
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. 
41.6K
Metallic Solids02:37

Metallic Solids

18.4K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
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Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

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Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
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Updated: Jul 5, 2025

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

Published on: March 24, 2018

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Modelling structure and ionic diffusion in a class of ionic liquid crystal-based solid electrolytes.

Md Sharif Khan1, Ambroise Van Roekeghem1, Stefano Mossa2

  • 1Université Grenoble Alpes, CEA, LITEN, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France. sharifkhanjnu@gmail.com.

Physical Chemistry Chemical Physics : PCCP
|January 18, 2024
PubMed
Summary
This summary is machine-generated.

We developed novel liquid crystal electrolytes for safer, high-efficiency lithium-ion batteries. Ionic conductivity depends on nanochannel size and ion interactions, showing promise for solid-state battery design.

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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Chemical Engineering

Background:

  • Next-generation lithium-ion batteries require electrolytes that are safe and thermally stable.
  • Liquid crystals offer a promising intermediate phase between solids and liquids for advanced battery applications.

Purpose of the Study:

  • To design and analyze a novel liquid crystal electrolyte for high-performance, all-solid-state lithium-ion batteries.
  • To investigate the impact of alkyl chain length on ionic conductivity and self-organization.

Main Methods:

  • Molecular dynamics simulations were employed to analyze the electrolyte structure and properties.
  • Various experimental techniques were used for synthesis and characterization of the liquid crystal electrolytes.
  • Ionic conductivity was evaluated by varying alkyl chain lengths.

Main Results:

  • Novel, highly ordered lamellar phase liquid crystal electrolytes were synthesized with 99% purity.
  • Ionic conductivity was found to depend non-monotonously on alkyl chain length, correlating with nanochannel formation.
  • Ion pair interactions significantly influence overall conductivity.

Conclusions:

  • The developed liquid crystal electrolytes show potential for solid-state lithium-ion batteries.
  • Optimizing alkyl chain length and understanding ion pair interactions are key to enhancing ionic conductivity.
  • This novel class of electrolytes offers a promising avenue for safer, high-efficiency energy storage.