(CaxNd11-x)Ru4O24 (x = 4.175)

Terutoshi Sakakura; Keita Okada; Hironaga Iguchi; Jun Wang; Nobuo Ishizawa

doi:10.1107/S1600536810046593

(Ca_xNd_11-x)Ru₄O₂₄ (x = 4.175)

Terutoshi Sakakura, Keita Okada, Hironaga Iguchi, Jun Wang, Nobuo Ishizawa

Research output: Contribution to journal › Article

Abstract

Single crystals of the title compound, calcium neodymium ruthenate, (Ca_xNd_11-x)Ru₄O₂₄ (x = 4.175), have been grown by the flux method. The structure consists of two crystallographically independent RuO₆ octa-hedra, which are isolated from each other and embedded in a matrix composed of the Ca and Nd atoms. There are seven M sites which accommodate the Ca and Nd atoms with different populations. Four M sites at general positions are enriched with Nd, whereas the remaining three M sites on twofold rotation axes are enriched with Ca. The coordination numbers of O atoms to the M sites range from 6 to 9. The mean oxidation state of Ru was estimated at +4.79 from the composition analysis. The title compound is non-centrosymmetric and potentially multiferroic.

Original language	English
Pages (from-to)	i80
Journal	Acta Crystallographica Section E: Structure Reports Online
Volume	66
Issue number	12
DOIs	https://doi.org/10.1107/S1600536810046593
Publication status	Published - 2010 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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Sakakura, T., Okada, K., Iguchi, H., Wang, J., & Ishizawa, N. (2010). (Ca_xNd_11-x)Ru₄O₂₄ (x = 4.175). Acta Crystallographica Section E: Structure Reports Online, 66(12), i80. https://doi.org/10.1107/S1600536810046593

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abstract = "Single crystals of the title compound, calcium neodymium ruthenate, (CaxNd11-x)Ru4O24 (x = 4.175), have been grown by the flux method. The structure consists of two crystallographically independent RuO6 octa-hedra, which are isolated from each other and embedded in a matrix composed of the Ca and Nd atoms. There are seven M sites which accommodate the Ca and Nd atoms with different populations. Four M sites at general positions are enriched with Nd, whereas the remaining three M sites on twofold rotation axes are enriched with Ca. The coordination numbers of O atoms to the M sites range from 6 to 9. The mean oxidation state of Ru was estimated at +4.79 from the composition analysis. The title compound is non-centrosymmetric and potentially multiferroic.",

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T1 - (CaxNd11-x)Ru4O24 (x = 4.175)

AU - Sakakura, Terutoshi

AU - Okada, Keita

AU - Iguchi, Hironaga

AU - Wang, Jun

AU - Ishizawa, Nobuo

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Single crystals of the title compound, calcium neodymium ruthenate, (CaxNd11-x)Ru4O24 (x = 4.175), have been grown by the flux method. The structure consists of two crystallographically independent RuO6 octa-hedra, which are isolated from each other and embedded in a matrix composed of the Ca and Nd atoms. There are seven M sites which accommodate the Ca and Nd atoms with different populations. Four M sites at general positions are enriched with Nd, whereas the remaining three M sites on twofold rotation axes are enriched with Ca. The coordination numbers of O atoms to the M sites range from 6 to 9. The mean oxidation state of Ru was estimated at +4.79 from the composition analysis. The title compound is non-centrosymmetric and potentially multiferroic.

AB - Single crystals of the title compound, calcium neodymium ruthenate, (CaxNd11-x)Ru4O24 (x = 4.175), have been grown by the flux method. The structure consists of two crystallographically independent RuO6 octa-hedra, which are isolated from each other and embedded in a matrix composed of the Ca and Nd atoms. There are seven M sites which accommodate the Ca and Nd atoms with different populations. Four M sites at general positions are enriched with Nd, whereas the remaining three M sites on twofold rotation axes are enriched with Ca. The coordination numbers of O atoms to the M sites range from 6 to 9. The mean oxidation state of Ru was estimated at +4.79 from the composition analysis. The title compound is non-centrosymmetric and potentially multiferroic.

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