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

Metal-Ligand Bonds02:51

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Coordination Compounds and Nomenclature02:54

Coordination Compounds and Nomenclature

In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
Valence Bond Theory02:42

Valence Bond Theory

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...
Coordination Number and Geometry02:57

Coordination Number and Geometry

For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
Molecular Shapes01:18

Molecular Shapes

Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
Two regions of electron density in a diatomic...
Structural Isomerism02:34

Structural Isomerism

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 be...

You might also read

Related Articles

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

Sort by
Same author

A Green Processing Strategy for the Formation of Electrochromic Metal-Organic Assemblies.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Transparent neutral-colored CsPbBr<sub>3</sub>perovskite solar cell with biological soybean lecithin food additives.

Nanotechnology·2026
Same author

Bridging or exchanging partners? A supramolecular perspective on bifunctional molecules and their potential for triggerable enzyme therapy.

Current opinion in chemical biology·2026
Same author

Hitchhiker's Guide to the Preparation of Novel Benzimidazoline-Based n‑Type Dopants.

Chemistry of materials : a publication of the American Chemical Society·2025
Same author

Direct chiroptical correlation of dissymmetric crystal morphologies.

Nature communications·2025
Same author

Low-Background His-Tag-Targeting Probes for Turn-On Fluorescence Detection of Cell Surface Proteins and Their Binding Interactions.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same journal

Carbonylative Aminative Suzuki-Miyaura Coupling: Pd-Catalyzed Synthesis of Amides from Vinyl/Aryl Halides and Boronic Acids.

Journal of the American Chemical Society·2026
Same journal

Divergent Asymmetric Synthesis of Glutinosasins A-E.

Journal of the American Chemical Society·2026
Same journal

Ultrastrong Polyketone Hot-Melt Adhesives Enabled by Ni-Catalyzed Carbonylative Polymerization.

Journal of the American Chemical Society·2026
Same journal

Programmable Anomalous Photovoltaics Enabled by Light-Electric Dual-Field Control.

Journal of the American Chemical Society·2026
Same journal

Biomimetic Redox-Mediated Proton Relay in Nanoreactors for Photocatalysis.

Journal of the American Chemical Society·2026
Same journal

The Sulfur Monoxide-Water Complex.

Journal of the American Chemical Society·2026
See all related articles

Related Experiment Video

Updated: May 30, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

Molecule and electron transfer through coordination-based molecular assemblies.

Leila Motiei1, Revital Kaminker, Mauro Sassi

  • 1Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel.

Journal of the American Chemical Society
|August 18, 2011
PubMed
Summary
This summary is machine-generated.

Researchers explored the internal structure of molecular assemblies. They found that thin film permeability and molecular transport can be controlled by adjusting film composition, molecular structure, and thickness.

More Related Videos

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
14:44

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR

Published on: December 16, 2013

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
10:13

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

Related Experiment Videos

Last Updated: May 30, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
14:44

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR

Published on: December 16, 2013

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
10:13

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

Area of Science:

  • Materials Science
  • Surface Chemistry
  • Nanotechnology

Background:

  • Understanding the internal structure of surface-confined molecular assemblies is crucial for designing advanced materials.
  • Layer-by-layer (LbL) grown thin films offer tunable properties for various applications.

Purpose of the Study:

  • To investigate the relationship between the composition and structure of LbL films and their internal properties.
  • To determine how film characteristics influence molecular permeability and electron transfer.

Main Methods:

  • Fabrication of layer-by-layer grown thin films with varying compositions and molecular components.
  • Systematic analysis of film structure and its correlation with functional properties.

Main Results:

  • Demonstrated systematic control over the permeability of LbL thin films by adjusting film composition.
  • Showcased the ability to tune molecular transport and electron transfer by modifying the structure of molecular components.
  • Established thickness as a key parameter for controlling molecule permeation versus electron transfer.

Conclusions:

  • The internal structure of surface-confined molecular assemblies can be precisely engineered.
  • LbL film properties, including permeability and electron transfer, are highly tunable through compositional and structural modifications.
  • Thickness plays a critical role in dictating the balance between molecular permeation and electron transfer in these systems.