TY - JOUR
T1 - Synthesis, structure, and optical properties of CsU 2(PO 4) 3
AU - Oh, George N.
AU - Ringe, Emilie
AU - Van Duyne, Richard P.
AU - Ibers, James A.
N1 - Funding Information:
Funding for this research was kindly provided by the US Department of Energy, Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division and Division of Materials Science and Engineering Grant ER–15522 , and the National Science Foundation ( CHE–0911145 ) and NSF MRSEC ( DMR–0520513 ) at the Materials Research Center of Northwestern University. SEM analyses were conducted in the Electron Probe Instrumentation Center (EPIC) at the Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, supported by NSF-NSEC, NSF-MRSEC, Keck Foundation, the State of Illinois, and Northwestern University. Single-crystal data were collected at the IMSERC X-ray Facility at Northwestern University, supported by the International Institute of Nanotechnology (IIN). Powder X-ray diffraction data were collected at the J. B. Cohen X-Ray Diffraction Facility supported by the MRSEC program of the NSF ( DMR–0520513 ) at the Materials Research Center of Northwestern University.
PY - 2012/1
Y1 - 2012/1
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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U2 - 10.1016/j.jssc.2011.10.007
DO - 10.1016/j.jssc.2011.10.007
M3 - Article
AN - SCOPUS:83855163563
SN - 0022-4596
VL - 185
SP - 124
EP - 129
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
ER -