Syntheses and characterization of the cubic uranium chalcogenides Rh2U6S15, Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15

Matthew D. Ward; George N. Oh; Adel Mesbah; Minseong Lee; Eun Sang Choi; James A. Ibers

doi:10.1016/j.jssc.2015.04.005

Syntheses and characterization of the cubic uranium chalcogenides Rh₂U₆S₁₅, Cs₂Ti₂U₆Se₁₅, Cs₂Cr₂U₆Se₁₅, and Cs₂Ti₂U₆Te₁₅

Matthew D. Ward, George N. Oh, Adel Mesbah, Minseong Lee, Eun Sang Choi, James A. Ibers^*

^*Corresponding author for this work

Chemistry

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

6 Scopus citations

Abstract

Abstract The compounds Rh₂U₆S₁₅, Cs₂Ti₂U₆Se₁₅, Cs₂Cr₂U₆Se₁₅, and Cs₂Ti₂U₆Te₁₅ have been synthesized at 1173 K. All crystallize in space group Oh9-Im3¯m of the cubic system. Rh₂U₆S₁₅ has a framework structure with three-dimensional channels. The compounds Cs₂Ti₂U₆Se₁₅, Cs₂Cr₂U₆Se₁₅, and Cs₂Ti₂U₆Te₁₅ have structures similar to that of Rh₂U₆S₁₅, but with Cs cations variably filling the channels. In all four structures the transition element is octahedrally coordinated by chalcogens and the uranium atom is in a bicapped trigonal-prismatic arrangement. The temperature dependence of the magnetic susceptibility of Cs₂Cr₂U₆Se₁₅ implies both Cr and U magnetic contributions. From these data the compound is not antiferromagnetic, but it could have either a ferrimagnetic or a ferromagnetic ground state.

Original language	English (US)
Article number	18858
Pages (from-to)	14-19
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	228
DOIs	https://doi.org/10.1016/j.jssc.2015.04.005
State	Published - Aug 1 2015

Funding

Use was made of the IMSERC X-ray Facility at Northwestern University, supported by the International Institute of Nanotechnology (IIN) . A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by NSF Cooperative Agreement no. DMR-1157490 by the State of Florida and by the DOE .

Keywords

Magnetism
Structures
Syntheses
Uranium chalcogenides

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.2015.04.005

Cite this

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title = "Syntheses and characterization of the cubic uranium chalcogenides Rh2U6S15, Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15",

abstract = "Abstract The compounds Rh2U6S15, Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15 have been synthesized at 1173 K. All crystallize in space group Oh9-Im3¯m of the cubic system. Rh2U6S15 has a framework structure with three-dimensional channels. The compounds Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15 have structures similar to that of Rh2U6S15, but with Cs cations variably filling the channels. In all four structures the transition element is octahedrally coordinated by chalcogens and the uranium atom is in a bicapped trigonal-prismatic arrangement. The temperature dependence of the magnetic susceptibility of Cs2Cr2U6Se15 implies both Cr and U magnetic contributions. From these data the compound is not antiferromagnetic, but it could have either a ferrimagnetic or a ferromagnetic ground state.",

keywords = "Magnetism, Structures, Syntheses, Uranium chalcogenides",

author = "Ward, {Matthew D.} and Oh, {George N.} and Adel Mesbah and Minseong Lee and {Sang Choi}, Eun and Ibers, {James A.}",

year = "2015",

month = aug,

day = "1",

doi = "10.1016/j.jssc.2015.04.005",

language = "English (US)",

volume = "228",

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AU - Ward, Matthew D.

AU - Oh, George N.

AU - Mesbah, Adel

AU - Lee, Minseong

AU - Sang Choi, Eun

AU - Ibers, James A.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Abstract The compounds Rh2U6S15, Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15 have been synthesized at 1173 K. All crystallize in space group Oh9-Im3¯m of the cubic system. Rh2U6S15 has a framework structure with three-dimensional channels. The compounds Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15 have structures similar to that of Rh2U6S15, but with Cs cations variably filling the channels. In all four structures the transition element is octahedrally coordinated by chalcogens and the uranium atom is in a bicapped trigonal-prismatic arrangement. The temperature dependence of the magnetic susceptibility of Cs2Cr2U6Se15 implies both Cr and U magnetic contributions. From these data the compound is not antiferromagnetic, but it could have either a ferrimagnetic or a ferromagnetic ground state.

AB - Abstract The compounds Rh2U6S15, Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15 have been synthesized at 1173 K. All crystallize in space group Oh9-Im3¯m of the cubic system. Rh2U6S15 has a framework structure with three-dimensional channels. The compounds Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15 have structures similar to that of Rh2U6S15, but with Cs cations variably filling the channels. In all four structures the transition element is octahedrally coordinated by chalcogens and the uranium atom is in a bicapped trigonal-prismatic arrangement. The temperature dependence of the magnetic susceptibility of Cs2Cr2U6Se15 implies both Cr and U magnetic contributions. From these data the compound is not antiferromagnetic, but it could have either a ferrimagnetic or a ferromagnetic ground state.

KW - Magnetism

KW - Structures

KW - Syntheses

KW - Uranium chalcogenides

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Syntheses and characterization of the cubic uranium chalcogenides Rh₂U₆S₁₅, Cs₂Ti₂U₆Se₁₅, Cs₂Cr₂U₆Se₁₅, and Cs₂Ti₂U₆Te₁₅

Abstract

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ASJC Scopus subject areas

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CSD 1410992: Experimental Crystal Structure Determination

CSD 1410995: Experimental Crystal Structure Determination

CSD 1410996: Experimental Crystal Structure Determination

Cite this

Syntheses and characterization of the cubic uranium chalcogenides Rh2U6S15, Cs2Ti2U6Se15, Cs2Cr2U6Se15, and Cs2Ti2U6Te15

Abstract

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Datasets

CSD 1410992: Experimental Crystal Structure Determination

CSD 1410995: Experimental Crystal Structure Determination

CSD 1410996: Experimental Crystal Structure Determination

Cite this

Syntheses and characterization of the cubic uranium chalcogenides Rh₂U₆S₁₅, Cs₂Ti₂U₆Se₁₅, Cs₂Cr₂U₆Se₁₅, and Cs₂Ti₂U₆Te₁₅