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Updated: Jul 19, 2025
10:52
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
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Rh19-: A high-spin super-octahedron cluster.
Yuhan Jia1,2, Cong-Qiao Xu3, Chaonan Cui1
1Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Science Advances
|August 16, 2023
Summary
Researchers discovered a stable magic-number rhodium cluster (Rh19-) with unique magnetic properties. This finding challenges traditional cluster stability theories and opens doors for spintronics and quantum computing applications.
Area of Science:
- Cluster Science
- Materials Science
- Quantum Physics
Background:
- Magic numbers in atomic clusters signify enhanced stability, typically due to combined geometric and electronic shell closures.
- Transition metal clusters often deviate from these simple rules, presenting unique stability challenges.
Purpose of the Study:
- To identify and characterize a novel magic-number cluster of rhodium (Rh19-).
- To elucidate the structural, electronic, and magnetic properties contributing to its unusual stability.
- To explore potential applications in advanced technologies.
Main Methods:
- Photoelectron spectroscopy was employed to probe the cluster's electronic structure.
- Global-minimum structure searches were conducted to determine its geometric configuration.
- Gas-collision reactions were used to assess the cluster's inertness and stability.
Main Results:
- A magic-number cluster, Rh19-, exhibiting remarkable inertness in gas-collision reactions was identified.
- The cluster's geometry was determined to be a regular O-[Rh@Rh12@Rh6]- with an unusual high-spin electronic configuration.
- Exceptional electron-spin state isomers were confirmed, indicating altered magnetism and electronic properties compared to bulk rhodium.
Conclusions:
- The stability of the Rh19- cluster is attributed to its unique bonding and superatomic electronic states, defying conventional cluster stability models.
- This 1-nanometer-sized cluster, a fragment of face-centered cubic rhodium, possesses distinct magnetic and electronic characteristics.
- The findings suggest potential applications for Rh19- in spintronics and quantum computing, particularly in atomically precise manufacturing.
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