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Synthesis, Structure and Antiferromagnetic Large-Distance Long-Range Coupling of the Ruthenate(V) Sr3(Ag2/3Sr1/6)RuO6

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Ruck,  Michael
Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Thakur, G. S., & Ruck, M. (2024). Synthesis, Structure and Antiferromagnetic Large-Distance Long-Range Coupling of the Ruthenate(V) Sr3(Ag2/3Sr1/6)RuO6. European Journal of Inorganic Chemistry, e202400086, pp. 1-5. doi:10.1002/ejic.202400086.


Cite as: https://hdl.handle.net/21.11116/0000-000F-479C-2
Abstract
Black, air-stable crystals of the new ruthenate(V) Sr3(Ag2/3Sr1/6)RuO6 were grown in a silver ampoule using KO2 as oxidative flux. X-ray diffraction on single-crystals revealed a rhombohedral structure with the space group R (Formula presented.) c. Sr3(Ag2/3Sr1/6)RuO6 crystallizes isostructural to Sr4PtO6 in the K4CdCl6 structure type. By sharing trigonal faces, alternating [RuO6] octahedra and [(Ag2/3Sr1/6□1/6)O6 trigonal prisms form segmented chains running parallel to the crystallographic c-axis. Eightfold coordinated strontium cations are located between the rods. Regardless of the wide spatial separation of the magnetic cations (588 and 594 pm), Sr3(Ag2/3Sr1/6)RuO6 shows long-range antiferromagnetic order below the relatively high Néel temperature of 79 K in magnetic fields up to at least 9 T, as measurements of the magnetic susceptibility and heat capacity show. Despite the pseudo one-dimensional character of the structure, the characteristic of the susceptibility indicates a three-dimensional coupling of magnetic ions. © 2024 The Authors. European Journal of Inorganic Chemistry published by Wiley-VCH GmbH.