New Sr9Os5O23, Made Up of Quasi 1D and 2D Fragments of the Perovskite Structure

Thakur, Gohil S.; Doert, Thomas; Jansen, Martin

doi:10.1021/acs.cgd.2c00705

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New Sr₉Os₅O₂₃, Made Up of Quasi 1D and 2D Fragments of the Perovskite Structure

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Thakur, Gohil S.
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Thakur, G. S., Doert, T., & Jansen, M. (2022). New Sr₉Os₅O₂₃, Made Up of Quasi 1D and 2D Fragments of the Perovskite Structure. Crystal Growth & Design, 22(9), 5616-5623. doi:10.1021/acs.cgd.2c00705.

Cite as: https://hdl.handle.net/21.11116/0000-000A-E77D-6

Abstract

Sr9Os5O23, a new strontium osmate, has been synthesized as a coarse-crystalline material from SrO2 and Os, in a SrCl2 flux. It crystallizes in a rather large monoclinic cell with space group, C2/c. It is a member of a newly identified homologous series Sr2n-1OsnO5n-2 of compounds with n = 3, 5, 7,middotmiddotmiddot. The crystal structure consists of stacks of two-dimensional slabs of perovskite-type layers alternating with one-dimensional zigzag chains of corner sharing OsO6 octahedra. The (Os5+/6+) mixed valence title compound shows an antiferromagnetic-like transition at T-N similar to 75 K, as inferred from magnetic susceptibility data.