Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Molecular and Ionic Solids02:54

Molecular and Ionic Solids

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...
Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
Intermolecular Forces in Solutions02:28

Intermolecular Forces in Solutions

The formation of a solution is an example of a spontaneous process, a process that occurs under specified conditions without energy from some external source.
When the strengths of the intermolecular forces of attraction between solute and solvent species in a solution are no different than those present in the separated components, the solution is formed with no accompanying energy change. Such a solution is called an ideal solution. A mixture of ideal gases (or gases such as helium and argon,...
Entropy and Solvation02:05

Entropy and Solvation

The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for determining a solvent for a given compound is that like dissolves like. A good solvent has molecular characteristics similar to those of the compound to be dissolved. For example, polar solutions dissolve polar solutes, and apolar solvents dissolve apolar solutes. A polar solvent is a solvent that has a high dielectric constant (ϵ ≥ 15); an...
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.
Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility02:34

Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility

Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

CHQuant: A Protocol for Quantifying Conformational Sampling with Convex Hulls.

Journal of chemical theory and computation·2025
Same author

The Findable, Accessible, Interoperable, Reusable (FAIR) Lite Principles to ensure utility of computational toxicology models.

ALTEX·2025
Same author

Accurate prediction of electron correlation energies of topological atoms by delta learning from the Müller approximation.

The Journal of chemical physics·2025
Same author

A computationally efficient quasi-harmonic study of ice polymorphs using the FFLUX force field.

Acta crystallographica. Section A, Foundations and advances·2024
Same author

Modeling Many-Body Interactions in Water with Gaussian Process Regression.

The journal of physical chemistry. A·2024
Same author

Toward Gaussian Process Regression Modeling of a Urea Force Field.

The journal of physical chemistry. A·2024

Related Experiment Video

Updated: Jul 3, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

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

Published on: December 20, 2016

Room temperature ionic liquids containing low water concentrations-a molecular dynamics study.

Andrew R Porter1, Steven Y Liem, Paul L A Popelier

  • 1Manchester Interdisciplinary Biocentre, The University of Manchester, Manchester, M1 7DN, UK.

Physical Chemistry Chemical Physics : PCCP
|July 18, 2008
PubMed
Summary

Water molecules form hydrogen-bonded clusters with anions in room-temperature ionic liquids. Cations play a minor role, and dynamic property simulations present challenges due to system viscosity.

More Related Videos

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

A Microfluidic Approach for the Study of Ice and Clathrate Hydrate Crystallization
08:01

A Microfluidic Approach for the Study of Ice and Clathrate Hydrate Crystallization

Published on: August 18, 2022

Related Experiment Videos

Last Updated: Jul 3, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

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

Published on: December 20, 2016

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

A Microfluidic Approach for the Study of Ice and Clathrate Hydrate Crystallization
08:01

A Microfluidic Approach for the Study of Ice and Clathrate Hydrate Crystallization

Published on: August 18, 2022

Area of Science:

  • Physical Chemistry
  • Computational Chemistry
  • Materials Science

Background:

  • Room-temperature ionic liquids (RTILs) are versatile solvents with tunable properties.
  • Understanding the behavior of water within RTILs is crucial for their application in various chemical processes.
  • The miscibility of water in RTILs significantly impacts their structural and dynamic characteristics.

Purpose of the Study:

  • To investigate the molecular-level interactions between water and two distinct RTILs using classical molecular dynamics.
  • To elucidate the structural organization of water clusters within both water-miscible and water-immiscible ionic liquid systems.
  • To identify the roles of cations and anions in water cluster formation and stabilization.

Main Methods:

  • Classical molecular dynamics simulations were employed.
  • Two RTILs with a common 1-ethyl-3-methylimidazolium ([EMIM]) cation and different anions ([BF(4)] and [NTf(2)]) were studied.
  • Small quantities of water were introduced into the ionic liquid systems.

Main Results:

  • Water molecules preferentially form hydrogen-bonded clusters in both ionic liquid types.
  • These water clusters are predominantly stabilized by hydrogen bonds with two anions.
  • The [EMIM] cation plays a secondary role in the solvation shell of water clusters.
  • Simulations revealed challenges in accurately determining dynamic properties like self-diffusion coefficients for these viscous systems.

Conclusions:

  • The anion is the primary interaction site for water clusters in both miscible and immiscible RTILs.
  • The cation's influence on water cluster structure is limited.
  • Accurate simulation of dynamic properties in viscous ionic liquid-water mixtures requires careful consideration of simulation parameters and system viscosity.