Synthesis and characterization of the quaternary scandium uranium selenide CsScUSe3(Se2)

Matthew D. Ward; Minseong Lee; Eun Sang Choi; James A. Ibers

doi:10.1016/j.jssc.2015.03.011

Synthesis and characterization of the quaternary scandium uranium selenide CsScUSe₃(Se₂)

Matthew D. Ward, Minseong Lee, Eun Sang Choi, James A. Ibers^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article

1 Scopus citations

Abstract

The compound CsScUSe₃(Se₂) has been synthesized by the reaction of U, Sc, and Se in a CsCl flux at 1173 K. Its structure is composed of infinite [^ScUSe5^-]∞2 sheets that are separated by Cs⁺ ions. The structure contains one Se₂^2- unit per U. Accordingly, the formula is charge balanced with U⁴⁺ and Sc³⁺ as Cs¹⁺Sc³⁺U⁴⁺(Se^2-)₃(Se₂^2-). From magnetic susceptibility measurements the magnetic behavior of CsScUSe₃(Se₂) can be divided into three different regions: paramagnetic, T>T_N; antiferromagnetic ordering, T<T_N; and ferromagnetic, T<T_c, where T_N and T_c are approximately 70 K and 25 K, respectively.

Original language	English (US)
Pages (from-to)	307-311
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	226
DOIs	https://doi.org/10.1016/j.jssc.2015.03.011
Publication status	Published - Mar 1 2015

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Keywords

Crystal structure
Magnetism
Scandium uranium selenide
Solid-state synthesis

ASJC Scopus subject areas

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

Cite this

Ward, M. D., Lee, M., Choi, E. S., & Ibers, J. A. (2015). Synthesis and characterization of the quaternary scandium uranium selenide CsScUSe₃(Se₂). Journal of Solid State Chemistry, 226, 307-311. https://doi.org/10.1016/j.jssc.2015.03.011

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title = "Synthesis and characterization of the quaternary scandium uranium selenide CsScUSe3(Se2)",

abstract = "The compound CsScUSe3(Se2) has been synthesized by the reaction of U, Sc, and Se in a CsCl flux at 1173 K. Its structure is composed of infinite [ScUSe5-]∞2 sheets that are separated by Cs+ ions. The structure contains one Se22- unit per U. Accordingly, the formula is charge balanced with U4+ and Sc3+ as Cs1+Sc3+U4+(Se2-)3(Se22-). From magnetic susceptibility measurements the magnetic behavior of CsScUSe3(Se2) can be divided into three different regions: paramagnetic, T>TN; antiferromagnetic ordering, T<TN; and ferromagnetic, T<Tc, where TN and Tc are approximately 70 K and 25 K, respectively.",

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AU - Choi, Eun Sang

AU - Ibers, James A.

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N2 - The compound CsScUSe3(Se2) has been synthesized by the reaction of U, Sc, and Se in a CsCl flux at 1173 K. Its structure is composed of infinite [ScUSe5-]∞2 sheets that are separated by Cs+ ions. The structure contains one Se22- unit per U. Accordingly, the formula is charge balanced with U4+ and Sc3+ as Cs1+Sc3+U4+(Se2-)3(Se22-). From magnetic susceptibility measurements the magnetic behavior of CsScUSe3(Se2) can be divided into three different regions: paramagnetic, T>TN; antiferromagnetic ordering, T<TN; and ferromagnetic, T<Tc, where TN and Tc are approximately 70 K and 25 K, respectively.

AB - The compound CsScUSe3(Se2) has been synthesized by the reaction of U, Sc, and Se in a CsCl flux at 1173 K. Its structure is composed of infinite [ScUSe5-]∞2 sheets that are separated by Cs+ ions. The structure contains one Se22- unit per U. Accordingly, the formula is charge balanced with U4+ and Sc3+ as Cs1+Sc3+U4+(Se2-)3(Se22-). From magnetic susceptibility measurements the magnetic behavior of CsScUSe3(Se2) can be divided into three different regions: paramagnetic, T>TN; antiferromagnetic ordering, T<TN; and ferromagnetic, T<Tc, where TN and Tc are approximately 70 K and 25 K, respectively.

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10.1016/j.jssc.2015.03.011