Related Experiment Video
Updated: Jun 3, 2026
Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
An organometallic single-ion magnet.
Shang-Da Jiang1, Bing-Wu Wang, Hao-Ling Sun
1Beijing National Laboratory of Molecular Science, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
Researchers synthesized a novel organometallic single-ion magnet using an erbium ion and two aromatic ligands. This molecule exhibits magnetic hysteresis up to 5 K, indicating potential for advanced magnetic applications.
Area of Science:
- Coordination Chemistry
- Materials Science
- Magnetism
Background:
- Single-ion magnets (SIMs) are crucial for developing next-generation data storage and quantum computing technologies.
- Designing SIMs with high magnetic anisotropy and blocking temperatures remains a significant challenge in molecular magnetism.
Purpose of the Study:
- To synthesize and characterize a novel organometallic single-ion magnet based on an erbium ion.
- To investigate the magnetic properties, including hysteresis and relaxation dynamics, of the synthesized molecule.
Main Methods:
- Organometallic synthesis of an erbium-containing complex with two different aromatic ligands.
- Magnetic susceptibility measurements (dc and ac) to probe magnetic behavior.
- Analysis of magnetization versus magnetic field (hysteresis loop) and temperature dependence.
Main Results:
- A novel organometallic single-ion magnet featuring an erbium ion was successfully synthesized using only 19 non-hydrogen atoms.
- The molecule displayed a butterfly-shaped magnetic hysteresis loop, persisting up to 5 K.
- Alternating-current susceptibility measurements identified two distinct magnetic relaxation processes with high energy barriers of 197 K and 323 K.
Conclusions:
- The synthesized erbium-based molecule represents a promising single-ion magnet with potential for high-temperature operation.
- The observed magnetic properties highlight the importance of ligand design in achieving efficient magnetic performance in molecular systems.
More Related Videos
10:23Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells
Published on: December 13, 2016
11:04Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
Published on: September 7, 2019
Related Concept Videos
01:23Properties of Organometallic Compounds
03:02Colors and Magnetism
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 eye.
02:51Metal-Ligand Bonds
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...
02:42Valence Bond Theory
02:34Structural Isomerism
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...
02:48Ionic Bonding and Electron Transfer