Synthesis, structure and magnetic properties of ACo5(SeO3)4(OH)2F (A = Rb, Cs): the first compounds with a distorted 2-uniform lattice (T29)†

IF 6.4 1区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Inorganic Chemistry Frontiers Pub Date : 2025-02-10 DOI:10.1039/D4QI03190C

Wenhao Zhang, Meiyan Cui, Zhiying Zhao, Tianyu Zhu and Zhangzhen He

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Abstract

Based on the crystal structure of A₂Cu₅(TeO₃)(SO₄)₃(OH)₄ (A = Na, K), two new compounds ACo₅(SeO₃)₄(OH)₂F (A = Rb, Cs) have been synthesized by introducing F⁻ ions, achieving the extension from a one-dimensional kagomé strip lattice to a distorted 2-uniform lattice (T29). Magnetic measurements indicate that RbCo₅ exhibits antiferromagnetic order at low temperatures, while CsCo₅ shows canted antiferromagnetic behavior. Both compounds display a field-induced magnetic transition at their respective critical fields. To the best of our knowledge, this is the first reported synthesis of compounds with a distorted 2-uniform lattice (T29).

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ACo5(SeO3)4(OH)2F （A = Rb, Cs）的合成、结构和磁性：第一批畸变2-均匀晶格（T29）化合物

在A2Cu5(TeO3)(SO4)3(OH)4 （A = Na， K）晶体结构的基础上，通过引入F−离子合成了两种新化合物ACo5(SeO3)4(OH)2F (A = Rb, Cs)，实现了从一维kagom条形晶格向扭曲的2-均匀晶格（T29）的扩展。磁性测量表明，RbCo5在低温下表现出反铁磁有序，而CsCo5则表现出倾斜的反铁磁行为。两种化合物在各自的临界场均表现出场致磁跃迁。据我们所知，这是首次报道的具有扭曲2-均匀晶格（T29）的化合物的合成。

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