Synthesis, structure, and magnetic properties of Ba2Cu2US5

Hui yi Zeng; Jiyong Yao; James A. Ibers

doi:10.1016/j.jssc.2007.12.025

Synthesis, structure, and magnetic properties of Ba₂Cu₂US₅

Hui yi Zeng, Jiyong Yao, James A. Ibers^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

The alkaline-earth uranium chalcogenide Ba₂Cu₂US₅ was obtained in a two-step reaction from BaS, Cu₂S, and US₂. Ba₂Cu₂US₅ crystallizes in a new structure type in space group C2/m of the monoclinic system with two formula units in a cell of dimensions a=13.606(3) Å, b=4.0825(8) Å, c=9.3217(19) Å, and β=116.32(3)° (153 K). The structure consists of _∞² [Cu₂ US₅^{4 -}] layers separated by Ba atoms in bicapped trigonal-prismatic coordination. The two-dimensional _∞² [Cu₂ US₅^{4 -}] layer is built from US₆ octahedra and CuS₄ tetrahedra. The connectivity of the MS_n polyhedra within the layer in the [001] direction is oct tet tet oct tet tet. A μ_eff value of 2.69(2) μ_B/U was obtained from the magnetic susceptibility data. No magnetic transition was observed for Ba₂Cu₂US₅ down to 2 K.

Original language	English (US)
Pages (from-to)	552-555
Number of pages	4
Journal	Journal of Solid State Chemistry
Volume	181
Issue number	3
DOIs	https://doi.org/10.1016/j.jssc.2007.12.025
State	Published - Mar 2008

Funding

This research was supported by the US Department of Energy BES Grant ER-15522. This work made use of facilities supported by the MRSEC program of the National Science Foundation (DMR05-20513) at the Materials Research Center of Northwestern University.

Keywords

Alkaline-earth
Crystal structure
Layered structure
Magnetism
Synthesis
Uranium

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.jssc.2007.12.025

Cite this

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title = "Synthesis, structure, and magnetic properties of Ba2Cu2US5",

abstract = "The alkaline-earth uranium chalcogenide Ba2Cu2US5 was obtained in a two-step reaction from BaS, Cu2S, and US2. Ba2Cu2US5 crystallizes in a new structure type in space group C2/m of the monoclinic system with two formula units in a cell of dimensions a=13.606(3) {\AA}, b=4.0825(8) {\AA}, c=9.3217(19) {\AA}, and β=116.32(3)° (153 K). The structure consists of ∞2 [Cu2 US54 -] layers separated by Ba atoms in bicapped trigonal-prismatic coordination. The two-dimensional ∞2 [Cu2 US54 -] layer is built from US6 octahedra and CuS4 tetrahedra. The connectivity of the MSn polyhedra within the layer in the [001] direction is oct tet tet oct tet tet. A μeff value of 2.69(2) μB/U was obtained from the magnetic susceptibility data. No magnetic transition was observed for Ba2Cu2US5 down to 2 K.",

keywords = "Alkaline-earth, Crystal structure, Layered structure, Magnetism, Synthesis, Uranium",

author = "Zeng, {Hui yi} and Jiyong Yao and Ibers, {James A.}",

note = "Funding Information: This research was supported by the US Department of Energy BES Grant ER-15522. This work made use of facilities supported by the MRSEC program of the National Science Foundation (DMR05-20513) at the Materials Research Center of Northwestern University.",

year = "2008",

month = mar,

doi = "10.1016/j.jssc.2007.12.025",

language = "English (US)",

volume = "181",

pages = "552--555",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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T1 - Synthesis, structure, and magnetic properties of Ba2Cu2US5

AU - Zeng, Hui yi

AU - Yao, Jiyong

AU - Ibers, James A.

N1 - Funding Information: This research was supported by the US Department of Energy BES Grant ER-15522. This work made use of facilities supported by the MRSEC program of the National Science Foundation (DMR05-20513) at the Materials Research Center of Northwestern University.

PY - 2008/3

Y1 - 2008/3

N2 - The alkaline-earth uranium chalcogenide Ba2Cu2US5 was obtained in a two-step reaction from BaS, Cu2S, and US2. Ba2Cu2US5 crystallizes in a new structure type in space group C2/m of the monoclinic system with two formula units in a cell of dimensions a=13.606(3) Å, b=4.0825(8) Å, c=9.3217(19) Å, and β=116.32(3)° (153 K). The structure consists of ∞2 [Cu2 US54 -] layers separated by Ba atoms in bicapped trigonal-prismatic coordination. The two-dimensional ∞2 [Cu2 US54 -] layer is built from US6 octahedra and CuS4 tetrahedra. The connectivity of the MSn polyhedra within the layer in the [001] direction is oct tet tet oct tet tet. A μeff value of 2.69(2) μB/U was obtained from the magnetic susceptibility data. No magnetic transition was observed for Ba2Cu2US5 down to 2 K.

AB - The alkaline-earth uranium chalcogenide Ba2Cu2US5 was obtained in a two-step reaction from BaS, Cu2S, and US2. Ba2Cu2US5 crystallizes in a new structure type in space group C2/m of the monoclinic system with two formula units in a cell of dimensions a=13.606(3) Å, b=4.0825(8) Å, c=9.3217(19) Å, and β=116.32(3)° (153 K). The structure consists of ∞2 [Cu2 US54 -] layers separated by Ba atoms in bicapped trigonal-prismatic coordination. The two-dimensional ∞2 [Cu2 US54 -] layer is built from US6 octahedra and CuS4 tetrahedra. The connectivity of the MSn polyhedra within the layer in the [001] direction is oct tet tet oct tet tet. A μeff value of 2.69(2) μB/U was obtained from the magnetic susceptibility data. No magnetic transition was observed for Ba2Cu2US5 down to 2 K.

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KW - Magnetism

KW - Synthesis

KW - Uranium

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