Synthesis, structure, and optical properties of CsU 2(PO 4) 3

George N. Oh; Emilie Ringe; Richard P. Van Duyne; James A. Ibers

doi:10.1016/j.jssc.2011.10.007

Synthesis, structure, and optical properties of CsU ₂(PO ₄) ₃

George N. Oh, Emilie Ringe, Richard P. Van Duyne, James A. Ibers^*

^*Corresponding author for this work

Chemistry

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

5 Scopus citations

Abstract

CsU ₂(PO ₄) ₃ was synthesized in highest yield by the reaction in a fused-silica tube of U, P, and Se in a CsCl flux at 1273 K. It crystallizes with four formula units in space group P2 ₁/n of the monoclinic system in a new structure type. The structure of CsU ₂(PO ₄) ₃ is composed of U and Cs atoms coordinated by PO ₄ ^3- units in distorted octahedral arrangements. Each U atom corner shares with six PO ₄ ^3- units. Each Cs atom face shares with one, edge shares with two, and corner shares with three PO ₄ ^3- units. The structure shares some features with the sodium zirconium phosphate structure type. X-ray powder diffraction results demonstrate that the present CsU ₂(PO ₄) ₃ compound crystallizes in a structure different from the previously reported β′- and γ-CsU ₂(PO ₄) ₃ compounds. CsU ₂(PO ₄) ₃ is highly pleochroic, as demonstrated by single-crystal optical absorption measurements.

Original language	English (US)
Pages (from-to)	124-129
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	185
DOIs	https://doi.org/10.1016/j.jssc.2011.10.007
State	Published - Jan 1 2012

Keywords

Cesium diuranium triphosphate
Optical absorption measurements
Pleochroism
Single-crystal X-ray structure

ASJC Scopus subject areas

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

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title = "Synthesis, structure, and optical properties of CsU 2(PO 4) 3 ",

abstract = "CsU 2(PO 4) 3 was synthesized in highest yield by the reaction in a fused-silica tube of U, P, and Se in a CsCl flux at 1273 K. It crystallizes with four formula units in space group P2 1/n of the monoclinic system in a new structure type. The structure of CsU 2(PO 4) 3 is composed of U and Cs atoms coordinated by PO 4 3- units in distorted octahedral arrangements. Each U atom corner shares with six PO 4 3- units. Each Cs atom face shares with one, edge shares with two, and corner shares with three PO 4 3- units. The structure shares some features with the sodium zirconium phosphate structure type. X-ray powder diffraction results demonstrate that the present CsU 2(PO 4) 3 compound crystallizes in a structure different from the previously reported β′- and γ-CsU 2(PO 4) 3 compounds. CsU 2(PO 4) 3 is highly pleochroic, as demonstrated by single-crystal optical absorption measurements.",

keywords = "Cesium diuranium triphosphate, Optical absorption measurements, Pleochroism, Single-crystal X-ray structure",

author = "Oh, {George N.} and Emilie Ringe and {Van Duyne}, {Richard P.} and Ibers, {James A.}",

year = "2012",

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AU - Oh, George N.

AU - Ringe, Emilie

AU - Van Duyne, Richard P.

AU - Ibers, James A.

PY - 2012/1/1

Y1 - 2012/1/1

N2 - CsU 2(PO 4) 3 was synthesized in highest yield by the reaction in a fused-silica tube of U, P, and Se in a CsCl flux at 1273 K. It crystallizes with four formula units in space group P2 1/n of the monoclinic system in a new structure type. The structure of CsU 2(PO 4) 3 is composed of U and Cs atoms coordinated by PO 4 3- units in distorted octahedral arrangements. Each U atom corner shares with six PO 4 3- units. Each Cs atom face shares with one, edge shares with two, and corner shares with three PO 4 3- units. The structure shares some features with the sodium zirconium phosphate structure type. X-ray powder diffraction results demonstrate that the present CsU 2(PO 4) 3 compound crystallizes in a structure different from the previously reported β′- and γ-CsU 2(PO 4) 3 compounds. CsU 2(PO 4) 3 is highly pleochroic, as demonstrated by single-crystal optical absorption measurements.

AB - CsU 2(PO 4) 3 was synthesized in highest yield by the reaction in a fused-silica tube of U, P, and Se in a CsCl flux at 1273 K. It crystallizes with four formula units in space group P2 1/n of the monoclinic system in a new structure type. The structure of CsU 2(PO 4) 3 is composed of U and Cs atoms coordinated by PO 4 3- units in distorted octahedral arrangements. Each U atom corner shares with six PO 4 3- units. Each Cs atom face shares with one, edge shares with two, and corner shares with three PO 4 3- units. The structure shares some features with the sodium zirconium phosphate structure type. X-ray powder diffraction results demonstrate that the present CsU 2(PO 4) 3 compound crystallizes in a structure different from the previously reported β′- and γ-CsU 2(PO 4) 3 compounds. CsU 2(PO 4) 3 is highly pleochroic, as demonstrated by single-crystal optical absorption measurements.

KW - Cesium diuranium triphosphate

KW - Optical absorption measurements

KW - Pleochroism

KW - Single-crystal X-ray structure

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