Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Colors and Magnetism

Colors and Magnetism

Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...

Metallic Solids

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....

Stereoisomerism

Stereoisomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...

Coordination Number and Geometry

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.

Valence Bond Theory

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...

Structural Isomerism

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...

You might also read

Related Articles

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

Sort by

Same author

Ternary Phase Diagram and Microstructures of Coordination Polymers.

The journal of physical chemistry. B·2026

Same author

Enhanced Proton Conduction by Incorporation and In-Situ Degradation of Urea-Modified Poly(allylamine) Confined in a Preyssler-Type Polyoxometalate Framework.

Inorganic chemistry·2026

Same author

Reductive-defect-suppressed titanium oxynitrides <i>via</i> Ca<sub>3</sub>N<sub>2</sub>-assisted topochemical nitridation.

Chemical science·2026

Same author

Colorless and Transparent Semialicyclic Polyimide Aerogels with Mechanical Durability for Thermal Insulation.

Nano letters·2026

Same author

Defect-engineered N-doped carbon stabilizes Cu<sup>+</sup> active sites for bifunctional CO<sub>2</sub> electroreduction to CO and formate.

RSC advances·2026

Same author

Soft crystalline properties of 2D frameworks constructed from lithium ions and dinitriles.

Chemical science·2026

Search research articles

Related Experiment Video

Updated: May 29, 2025

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

Binary Phase Diagrams of Coordination Polymers with Eutectic Behaviors.

Karnjana Atthawilai¹, Hiroyasu Tabe², Kotaro Ohara³

¹Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand.

Journal of the American Chemical Society

|February 3, 2025

Summary

This summary is machine-generated.

Researchers created binary phase diagrams for coordination polymers using melting and crystallization. These diagrams reveal eutectic phenomena and solid solutions, leading to novel latent heat storage materials.

More Related Videos

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

Related Experiment Videos

Last Updated: May 29, 2025

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

Area of Science:

Materials Science
Crystallography
Chemical Engineering

Background:

Coordination polymers exhibit reversible solid-liquid transitions.
Understanding phase diagrams is crucial for materials development.

Purpose of the Study:

To construct binary phase diagrams for Ag+-based coordination polymers.
To investigate the origins of phase diagram formation.
To explore applications in latent heat storage.

Main Methods:

Utilizing reversible solid-liquid transition behaviors (melting and crystallization).
Constructing three types of binary phase diagrams for Ag+-based coordination polymers.
Investigating ligand and anion exchange reactions at interfaces.

Main Results:

Eutectic phenomena were observed in all diagrams, driven by ligand exchange.
Solid solution formation occurred with similar crystal structures and coordination geometries.
Optimal binary compounds demonstrated potential as latent heat storage materials at 100 °C.

Conclusions:

Binary phase diagrams effectively map coordination polymer transitions.
Ligand and anion exchange reactions dictate phase behavior.
Developed materials show promise for efficient and stable thermal energy storage.