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Updated: Jan 5, 2026
07:56
Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron
Published on: August 12, 2019
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Terbium Triangle Bridged by a Triazole Nitronyl Nitroxide Radical with Single-Molecule-Magnet Behavior
Jian Yun Shi1, Ming Ze Wu1, Peng Yun Chen1
1Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry, Ministry of Education, College of Chemistry , Tianjin Normal University , Tianjin 300387 , P. R. China.
Inorganic Chemistry
|October 19, 2019
Summary
Researchers synthesized a novel cyclic terbium-radical cluster exhibiting slow magnetic relaxation. This discovery marks the first triangular 2p-4f cluster with this unique magnetic property.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Magnetochemistry
Background:
- Lanthanide-based clusters are explored for single-molecule magnet properties.
- Developing novel molecular architectures with tunable magnetic behaviors is an ongoing challenge.
Purpose of the Study:
- To synthesize and characterize a new cyclic terbium-radical cluster.
- To investigate the magnetic relaxation properties of the synthesized cluster.
Main Methods:
- Self-assembly synthesis using terbium(III) and radical precursors.
- Alternating-current (ac) magnetic studies to probe magnetic dynamics.
- Direct-current (dc) magnetic field application to analyze relaxation processes.
Main Results:
- An unprecedented cyclic Tb3-radical cluster, [Tb3(hfac)6(4-Me-3-NITtrz)2(OH)3] (1), was successfully synthesized.
- The cluster exhibits dual slow relaxation of magnetization under zero dc field.
- A single relaxation process with an effective energy barrier of 14 K was observed under an applied dc field.
Conclusions:
- The synthesized Tb3 cluster represents the first triangular 2p-4f cluster displaying slow magnetic relaxation.
- This finding opens new avenues for designing advanced molecular magnetic materials.
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