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

Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

30.5K
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...
30.5K
Structural Isomerism02:34

Structural Isomerism

21.4K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.4K
Bonding in Metals02:32

Bonding in Metals

51.7K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”. 
51.7K
The Aufbau Principle and Hund's Rule03:02

The Aufbau Principle and Hund's Rule

71.9K
To determine the electron configuration for any particular atom, we can build the structures in the order of atomic numbers. Beginning with hydrogen, and continuing across the periods of the periodic table, we add one proton at a time to the nucleus and one electron to the proper subshell until we have described the electron configurations of all the elements. This procedure is called the aufbau principle, from the German word aufbau (“to build up”). Each added electron occupies the...
71.9K
Aromatic Hydrocarbon Cations: Structural Overview01:18

Aromatic Hydrocarbon Cations: Structural Overview

3.6K
Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group...
3.6K
Valence Bond Theory02:42

Valence Bond Theory

11.1K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
11.1K

You might also read

Related Articles

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

Sort by
Same author

Tracing the origin of the tobacco BY-2 cell line.

Protoplasma·2026
Same author

Toposelective on-surface synthesis of curved π-extended oligomers based on bowl-shaped aromatics.

Chemical science·2026
Same author

On-Surface Synthesis of B<sub>3</sub>N<sub>3</sub>-Substituted Two-Dimensional Covalent Organic Frameworks with Distinct Pore Sizes and Kagome Band Structures.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Water Phase Diagram from a General-Purpose Atomic Cluster Expansion Potential.

Journal of chemical theory and computation·2026
Same author

On-surface synthesis and interfacial charge redistribution of open-shell [3]triangulene-fused porphyrins on Au(111).

National science review·2026
Same author

Spin State in Au Porphyrins Modulated by Charge Transfer on Au(111).

Journal of the American Chemical Society·2026
Same journal

Correction to "Nanoparticles (NPs)-Meditated LncRNA AFAP1-AS1 Silencing to Block Wnt/β-Catenin Signaling Pathway for Synergistic Reversal of Radioresistance and Effective Cancer Radiotherapy".

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same journal

Femtosecond-Laser Nanocavitation Regenerates SERS-Active Plasmonic Nanogaps for Longitudinal Molecular Sensing at Biointerfaces.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same journal

Correction to "Bioinspired Polyacrylic Acid-Based Dressing: Wet Adhesive, Self-Healing, and Multi-Biofunctional Coacervate Hydrogel Accelerates Wound Healing".

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same journal

Non-Line-of-Sight Passive Ammonia Sensor Loaded With MXene/In<sub>2</sub>O<sub>3</sub> Composites for Agricultural Products Quality Deterioration Detection.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same journal

Cerium Nanoparticle-Mediated Inhibition of the NSUN2/m<sup>5</sup>C Axis Suppresses Synovial Aggression in Rheumatoid Arthritis.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same journal

Biomimetic Nanoplatform for Dual Target Nano-Metabolic Therapy in Diabetes-Associated Biofilm Infections.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
See all related articles

Related Experiment Video

Updated: Jan 11, 2026

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

2.1K

Coverage-Dependent Structural Evolution of CoBr2 at the Au(111) Interface.

Samuel Kerschbaumer1, Martin Ondráček2, Sebastien E Hadjadj1

  • 1Centro de Física de Materiales (CSIC/UPV-EHU), 20018, Donostia-San Sebastián, Spain.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|November 14, 2025
PubMed
Summary
This summary is machine-generated.

Researchers discovered that cobalt(II) bromide (CoBr2) on gold(111) initially forms ordered clusters before transitioning to bulk-like layers. This challenges traditional assumptions about van der Waals material growth on surfaces.

Keywords:
2D magnetic materialsCoBr2 single layer growthtransition metal dihalidesvan der Waals semiconductors

More Related Videos

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.9K
Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

8.0K

Related Experiment Videos

Last Updated: Jan 11, 2026

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

2.1K
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.9K
Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

8.0K

Area of Science:

  • Materials Science
  • Surface Science
  • Nanotechnology

Background:

  • Understanding van der Waals (vdW) material growth is key for advanced electronic and magnetic devices.
  • Current models often overlook substrate influence, assuming direct bulk-like layer formation.

Purpose of the Study:

  • To investigate the initial growth stages of CoBr2 on Au(111).
  • To elucidate the role of the substrate in vdW material assembly.
  • To challenge conventional direct layer formation theories.

Main Methods:

  • Experimental techniques (e.g., surface science methods).
  • Machine-learning-driven molecular dynamics simulations.
  • Density functional theory (DFT) calculations.

Main Results:

  • CoBr2 initially forms a unique, ordered, three-molecule cluster precursor phase on Au(111).
  • This precursor phase exhibits long-range order and a specific registry with the Au(111) surface.
  • Increased coverage drives a transition from the precursor phase to the equilibrium bulk vdW crystal structure.

Conclusions:

  • The growth of CoBr2 on Au(111) proceeds through a novel surface-stabilized molecular precursor phase.
  • Substrate interactions significantly influence initial vdW material assembly, contradicting direct bulk-like growth assumptions.
  • This study provides critical insights into surface-mediated growth mechanisms for vdW materials.