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Updated: May 23, 2025

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Published on: June 9, 2023
Saddle-Shaped Heterometallic 3d-4f Cluster: Structure and Magnetocaloric Effect
Qingxin Liu1, Min Feng1, Wanmin Chen1
1Department of Chemistry and Key Laboratory of Rare Earth Chemistry of Guangdong Higher Education Institutes, Southern University of Science and Technology, Shenzhen 518055, China.
Abstract:
Heterometallic 3d-4f cluster complexes have enjoyed much recent interest because of their structural esthetics, unique properties, and useful applications. A cluster of the formula [Gd68Co60(OH)116(CH3COO)8(IDA)56(CO3)4(C2O4)8(H2O)92Cl16]Cl48·10H2O·60CH3OH (GdCo, IDA: iminodiacetate), obtained by the cohydrolysis of Gd3+ and Co2+ in the presence of IDA, is herein reported. Crystallographic studies revealed its saddle-shaped cyclic structure featuring a nanometer-sized central cavity. A maximum magnetic entropy change of 38.58 J·K-1·kg-1 was achieved at 3.0 K and 7.0 T, placing GdCo favorably alongside the better-performing clusters for magnetic cooling applications.
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