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...

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...

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory - Octahedral Complexes

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...

Ferromagnetism

Ferromagnetism

Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...

Crystal Field Theory - Tetrahedral and Square Planar Complexes

Crystal Field Theory - Tetrahedral and Square Planar Complexes

Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than...

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...

You might also read

Related Articles

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

Sort by

Same author

Easily Accessible and Up-Scalable Aliphatic Bis-Formamides with Afterglow Luminescence: Photoluminescence Properties and Applications.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

Experimentally Validated Quantum-Secure Federated Learning over a Multi-user Quantum Network.

Research (Washington, D.C.)·2026

Same author

ITPP in early pancreatic zebrafish xenografts mildly impacts tumor cell death without interfering with vascular normalization.

BMC cancer·2026

Same author

Molecular Recognition-Driven Reaction-Based Sensing of Catecholamines in a Lipid Nanoreactor.

Journal of the American Chemical Society·2026

Same author

Time-bin encoded quantum key distribution over 120 km with a telecom quantum dot source.

Light, science & applications·2026

Same author

Translating Nature's Design Rules: How Catalysis and Life Science Guide Molecular Catassembly.

JACS Au·2026

Same journal

A<sub>3</sub>Zr<sub>2</sub>(PS<sub>4</sub>)(P<sub>2</sub>S<sub>7</sub>)<sub>2</sub> (A = K, Rb, Cs) Synthesized by the Metal Oxide-Boron-Chalcogen Routine: A Series of Zirconium-Based Thiophosphate Nonlinear Optical Crystals Featuring PS<sub>4</sub> Tetrahedron and P<sub>2</sub>S<sub>7</sub> Dimer.

Inorganic chemistry·2026

Same journal

A Vapor-Liquid Interface Reaction Leading to the Isolation of an "Oxo-Rich" {Mo<sub>36</sub>} Polyoxometalate Compound for Proton Conductivity Studies.

Inorganic chemistry·2026

Same journal

Spatial Arrangement of Porphyrin-Eu(III) Ions on Apatite Nanoparticles.

Inorganic chemistry·2026

Same journal

Controlling Spin States in Metallosupramolecular Iron(II) Grid Architectures through Light, Temperature, and Protonation.

Inorganic chemistry·2026

Same journal

Overall Water-Splitting Enabled by Bifunctional NiPd/Pd Heterodimer Fabricated via In Situ Etching-Growth Route.

Inorganic chemistry·2026

Same journal

Luminescent Ir<sup>III</sup>-Au<sup>I</sup> Heterobimetallic Complex with a Carbene Bridging Ligand.

Inorganic chemistry·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 1, 2026

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

Ferromagnetic coupling in copper(II) [2 × 2] grid-like complexes.

Augustin M Madalan¹, Xiao-Yu Cao, Guillaume Rogez

¹Institut de Science et d'Ingénierie Supramoléculaires, Université de Strasbourg , 8 allée Gaspard Monge, 67000 Strasbourg, France.

Inorganic Chemistry

|April 23, 2014

Summary

This summary is machine-generated.

Two new copper(II) grid-like complexes exhibit intramolecular ferromagnetic interactions. This finding advances the understanding of magnetic coupling in coordination chemistry.

More Related Videos

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

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

Published on: June 7, 2018

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

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

Published on: December 16, 2013

Related Experiment Videos

Last Updated: May 1, 2026

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

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

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

Published on: June 7, 2018

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

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

Published on: December 16, 2013

Area of Science:

Coordination Chemistry
Materials Science
Magnetochemistry

Background:

Copper(II) complexes are widely studied for their diverse magnetic properties.
Grid-like structures offer unique spatial arrangements for metal ions, influencing magnetic behavior.

Purpose of the Study:

To synthesize and structurally characterize novel copper(II) grid-like complexes.
To investigate the magnetic properties and intramolecular interactions within these complexes.

Main Methods:

Synthesis of copper(II) complexes.
Single-crystal X-ray diffraction for structural determination.
Magnetic susceptibility measurements to probe magnetic interactions.

Main Results:

Successful synthesis and structural elucidation of two distinct copper(II) [2 × 2] grid-like complexes.
Experimental evidence for intramolecular ferromagnetic interactions in both synthesized complexes.
Analysis of structural features correlating with observed magnetic behavior.

Conclusions:

The synthesized copper(II) grid-like complexes display significant intramolecular ferromagnetic coupling.
Structural insights provide a basis for understanding the mechanism of ferromagnetic interactions in these systems.
These findings contribute to the design of novel magnetic materials based on grid-like coordination compounds.