Jove
Visualize
Contact Us

Related Concept Videos

Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

958
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
958
Ionic Strength: Overview01:12

Ionic Strength: Overview

2.1K
The ionic strength of a solution is a quantitative way of expressing the total electrolyte concentration of a solution. This concept was first introduced in 1921 by two American physical chemists, Gilbert N. Lewis and Merle Randall, while describing the activity coefficient of strong electrolytes. During the calculation of ionic strength (I or μ), all the cations and anions are considered. However, the concentration (c) of an ion with a greater charge number (z) has a greater contribution...
2.1K
Ionic Strength: Effects on Chemical Equilibria01:19

Ionic Strength: Effects on Chemical Equilibria

2.0K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
2.0K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

65.6K
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.
65.6K
IR Frequency Region: Alkyne and Nitrile Stretching01:22

IR Frequency Region: Alkyne and Nitrile Stretching

1.1K
Both alkyne (C≡C) and nitrile (C≡N) functional groups contain triple bonds and show stretching absorptions around the wavenumber range of 2100 to 2300 cm−1 in the diagnostic region of the IR spectra.
Comparing the stretching vibrational frequency of  C≡C triple bonds with that of double and single bonds, it is evident that C≡C triple bonds exhibit a higher stretching frequency than C=C double and C–C single bonds. Similarly, the C≡N triple bond...
1.1K
Capillary Electrophoresis: Applications01:30

Capillary Electrophoresis: Applications

621
Capillary electrophoretic separations offer various modes, each with unique applications. These modes include capillary zone electrophoresis, capillary gel electrophoresis, capillary array electrophoresis, capillary isoelectric focusing, capillary isotachophoresis, micellar electrokinetic chromatography, and capillary electrochromatography.
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
621

You might also read

Related Articles

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

Sort by
Same author

Monitoring of Bicelles Spreading into Floating Lipid Bilayers.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

European Robin Cryptochrome-4a Associates with Lipid Bilayers in an Ordered Manner, Fulfilling a Molecular-Level Condition for Magnetoreception.

ACS chemical biology·2025
Same author

Pneumatic conveying inkjet bioprinting for the processing of living cells.

Biofabrication·2025
Same author

Synthesis of Optically Active Spirocycles by a Sequence of Decarboxylative Asymmetric Allylic Alkylation and Heck Reaction.

Organic letters·2024
Same author

How do Antimicrobial Peptides Interact with the Outer Membrane of Gram-Negative Bacteria? Role of Lipopolysaccharides in Peptide Binding, Anchoring, and Penetration.

ACS infectious diseases·2024
Same author

Resonating holes vs molecular spin-orbit coupled states in group-5 lacunar spinels.

Nature communications·2023
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 Experiment Video

Updated: Oct 20, 2025

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

13.1K

CD Stretching Modes are Sensitive to the Microenvironment in Ionic Liquids.

Thorben Sieling1, Thorben Petersen1, Torben Alpers1

  • 1Institute of Chemistry, University of Oldenburg, 26111, Oldenburg, Germany.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|September 12, 2021
PubMed
Summary

Researchers studied ionic liquids (IL) near electrode surfaces. They found that the arrangement of ions and the orientation of alkyl chains change with electrical potential, revealing distinct polar and nonpolar environments.

Keywords:
IR spectroscopyLB monolayerionic liquidnanosegregationperdeuterated hydrocarbon chain

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

5.8K
Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers
09:54

Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers

Published on: November 19, 2015

11.0K

Related Experiment Videos

Last Updated: Oct 20, 2025

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

13.1K
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

5.8K
Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers
09:54

Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers

Published on: November 19, 2015

11.0K

Area of Science:

  • Electrochemistry
  • Surface Science
  • Materials Science

Background:

  • Understanding the electrical double layer structure in ionic liquids (IL) is vital for electrochemical technologies.
  • Amphiphilic ionic liquids offer unique properties for surface studies.
  • Imidazolium-based ILs are widely used in various electrochemical applications.

Purpose of the Study:

  • To investigate the potential-dependent structural rearrangements of an amphiphilic imidazolium-based ionic liquid on a Au(111) surface.
  • To explore changes in the IL's microenvironment using a perdeuterated alkyl chain.
  • To correlate electrochemical behavior with molecular-level structural changes.

Main Methods:

  • Synthesis of an imidazolium-based amphiphilic ionic liquid with a perdeuterated alkyl chain.
  • Electrochemical measurements to study ion organization on the electrode surface.
  • In situ infrared (IR) spectroscopy to analyze molecular orientation and environment.
  • Quantum chemical calculations to support spectral assignments.

Main Results:

  • Two distinct states of ion organization on the electrode surface were identified via electrochemical measurements.
  • In situ IR spectroscopy revealed potential-dependent reorientation of alkyl chains in imidazolium cations.
  • A new, potential-dependent band in the methylene-d2 stretching modes of the perdeuterated IL was observed, influenced by the anion.
  • This new band, assigned to alkyl chains in a polar environment, indicates potential-dependent segregation of polar and nonpolar regions.

Conclusions:

  • The study demonstrates potential-driven structural changes in ionic liquid layers at electrode interfaces.
  • The observed spectral changes provide a measure of the segregation between polar and nonpolar environments near the electrode.
  • This work offers insights into the structure-property relationships of ionic liquids for electrochemical applications.