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

The Electrical Double Layer01:30

The Electrical Double Layer

217
In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
217
Intermolecular Forces03:13

Intermolecular Forces

61.8K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
61.8K
Intermolecular Forces03:13

Intermolecular Forces

15.9K
15.9K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

16.3K
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...
16.3K
Molecular Orbital Theory II03:51

Molecular Orbital Theory II

21.5K
Molecular Orbital Energy Diagrams
21.5K
Electrochemical Systems01:24

Electrochemical Systems

169
Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution,...
169

You might also read

Related Articles

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

Sort by
Same author

Electrochemical scanning tunnelling microscopy: Concept, experiment, and application to organic layers on electrified surfaces.

Journal of microscopy·2025
Same author

Prospective validation study: a non-invasive circulating tumor DNA-based assay for simultaneous early detection of multiple cancers in asymptomatic adults.

BMC medicine·2025
Same author

A consultation and work-up diagnosis protocol for a multicancer early detection test: a case series study.

Future science OA·2024
Same author

Multimodal analysis of methylomics and fragmentomics in plasma cell-free DNA for multi-cancer early detection and localization.

eLife·2023
Same author

On the role of functional groups in the formation of diazonium based covalent attachments: dendritic <i>vs.</i> layer-by-layer growth.

RSC advances·2023
Same author

3D-ordered porous CdS/AgI/ZnO nanostructures for high-performance photoelectrochemical water splitting.

Nanotechnology·2023

Related Experiment Video

Updated: Apr 22, 2026

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.0K

Molecular ordering at electrified interfaces: Template and potential effects.

Thanh Hai Phan1, Klaus Wandelt2

  • 1Institute of Physical and Theoretical Chemistry, University of Bonn, Wegelerstr. 12, 53115 Bonn, Germany ; Laboratory of Photochemistry and Spectroscopy, Department of Chemistry, Catholic University of Leuven, Celestijnenlaan 200F, B-3001, Hevelee, Belgium ; Physics Department, Quynhon University, 170 An Duong Vuong; Quynhon, Vietnam.

Beilstein Journal of Organic Chemistry
|October 10, 2014
PubMed
Summary
This summary is machine-generated.

Researchers studied 1,1'-dibenzyl-4,4'-bipyridinium (DBV(2+)) adsorption and phase transitions on a copper surface using electrochemistry and microscopy. They observed a "herring-bone" structure that transforms into an "alternating stripe" pattern upon reduction.

Keywords:
cyclic voltammogramscanning tunneling microscopyself-assemblytemplate effectviologen

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

5.0K
Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer
10:11

Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

Published on: April 19, 2021

3.0K

Related Experiment Videos

Last Updated: Apr 22, 2026

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.0K
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

5.0K
Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer
10:11

Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

Published on: April 19, 2021

3.0K

Area of Science:

  • Electrochemistry
  • Surface Science
  • Materials Science

Background:

  • Understanding molecular adsorption and phase transitions on electrode surfaces is crucial for designing advanced electrochemical devices.
  • Copper surfaces modified with chloride ions serve as model systems for studying interfacial phenomena.
  • 1,1 -dibenzyl-4,4 -bipyridinium (DBV(2+)) is a molecule of interest due to its redox activity and potential applications.

Purpose of the Study:

  • To investigate the adsorption behavior and electrochemical phase transitions of DBV(2+) molecules on a chloride-modified Cu(111) electrode.
  • To elucidate the structural transformations of DBV adlayers during redox processes.
  • To assess the interplay between adsorbate-substrate and adsorbate-adsorbate interactions in structure formation.

Main Methods:

  • Cyclic voltammetry (CV) was used to probe the redox processes and phase transitions.
  • In situ scanning tunneling microscopy (STM) provided atomic-level insights into the adlayer structures.
  • Electrochemical techniques were combined with surface microscopy to study DBV(2+) on Cl/Cu(111).

Main Results:

  • Three distinct current waves (P1/P'1, P2/P'2, P3/P'3) were observed in the CV, corresponding to DBV(2+) reduction and chloride desorption/readsorption.
  • At positive potentials, DBV(2+) formed a highly ordered
  • herring-bone
  • structure on the c(p × √3)-Cl/Cu(111) surface.
  • Electrochemical reduction at P1 induced a phase transition to an
  • alternating stripe
  • pattern of DBV(+•) via nucleation and growth.

Conclusions:

  • The study reveals distinct structural phases of DBV cations on a Cl/Cu(111) surface, driven by electrochemical potential.
  • The observed phase transitions are linked to reversible electron transfer events of the DBV molecules.
  • Comparing structures on Cu(111) and Cu(100) surfaces provides insights into the relative importance of template vs. self-assembly effects in molecular structure formation.