Flux synthesis of salt-inclusion uranyl silicates: [K3Cs 4F][(UO2)3(Si2O7) 2] and [NaRb6F][(UO2)3(Si 2O7)2]

Cheng Shiuan Lee; Sue Lein Wang; Yen Hung Chen; Kwang Hwa Lii

doi:10.1021/ic901001n

Flux synthesis of salt-inclusion uranyl silicates: [K₃Cs ₄F][(UO₂)₃(Si₂O₇) ₂] and [NaRb₆F][(UO₂)₃(Si ₂O₇)₂]

Cheng Shiuan Lee, Sue Lein Wang, Yen Hung Chen, Kwang Hwa Lii

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

48 引文斯高帕斯（Scopus）

摘要

Two salt-inclusion uranyl silicates, [K₃Cs₄F] [(UO₂)₃(Si₂O₇)₂] (compound 1) and [NaRb₆F][(UO₂)₃(Si ₂O₇)₂] (compound 2), have been synthesized at high temperature using mixtures of alkali metal fluorides as fluxes and structurally characterized by single-crystal X-ray diffraction. Both compounds contain UO₆ tetragonal bipyramids linked by disilicate groups to form three-dimensional framework structures with identical framework composition but different framework structures and salt inclusions. Both structures contain elliptical 12-ring channels where the K₂Cs₄F and Rb ₆F units are located. They are the first examples of salt-inclusion uranium silicates. The frameworks of 1 and 2 are thermally stable up to 850 and 750 °C, as indicated from powder X-ray diffraction. The ¹⁹F and ²⁹Si MAS NMR spectra and the second-harmonic-generation response of 1 are consistent with the crystal structure analysis results. Crystal data: [K₃Cs₄F][(UO₂)₃(Si₂O ₇)₂], Cmc2₁ a = 7.8095(3) A, b = 22.2819(7) Å, c= 14.0861(4) Å, and Z= 4; [NaRb₆F][(UO ₂)₃(Si₂O₇)₂], Pnnm, a=11.1429(2) Å, 0=13.5151(3) Å, c=7.8868(1) Å, and Z=2.

原文	???core.languages.en_GB???
頁（從 - 到）	8357-8361
頁數	5
期刊	Inorganic Chemistry
卷	48
發行號	17
DOIs	https://doi.org/10.1021/ic901001n
出版狀態	已出版 - 7 9月 2009

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10.1021/ic901001n

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title = "Flux synthesis of salt-inclusion uranyl silicates: [K3Cs 4F][(UO2)3(Si2O7) 2] and [NaRb6F][(UO2)3(Si 2O7)2]",

abstract = "Two salt-inclusion uranyl silicates, [K3Cs4F] [(UO2)3(Si2O7)2] (compound 1) and [NaRb6F][(UO2)3(Si 2O7)2] (compound 2), have been synthesized at high temperature using mixtures of alkali metal fluorides as fluxes and structurally characterized by single-crystal X-ray diffraction. Both compounds contain UO6 tetragonal bipyramids linked by disilicate groups to form three-dimensional framework structures with identical framework composition but different framework structures and salt inclusions. Both structures contain elliptical 12-ring channels where the K2Cs4F and Rb 6F units are located. They are the first examples of salt-inclusion uranium silicates. The frameworks of 1 and 2 are thermally stable up to 850 and 750 °C, as indicated from powder X-ray diffraction. The 19F and 29Si MAS NMR spectra and the second-harmonic-generation response of 1 are consistent with the crystal structure analysis results. Crystal data: [K3Cs4F][(UO2)3(Si2O 7)2], Cmc21 a = 7.8095(3) A, b = 22.2819(7) {\AA}, c= 14.0861(4) {\AA}, and Z= 4; [NaRb6F][(UO 2)3(Si2O7)2], Pnnm, a=11.1429(2) {\AA}, 0=13.5151(3) {\AA}, c=7.8868(1) {\AA}, and Z=2.",

author = "Lee, {Cheng Shiuan} and Wang, {Sue Lein} and Chen, {Yen Hung} and Lii, {Kwang Hwa}",

year = "2009",

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T1 - Flux synthesis of salt-inclusion uranyl silicates

T2 - [K3Cs 4F][(UO2)3(Si2O7) 2] and [NaRb6F][(UO2)3(Si 2O7)2]

AU - Lee, Cheng Shiuan

AU - Wang, Sue Lein

AU - Chen, Yen Hung

AU - Lii, Kwang Hwa

PY - 2009/9/7

Y1 - 2009/9/7

N2 - Two salt-inclusion uranyl silicates, [K3Cs4F] [(UO2)3(Si2O7)2] (compound 1) and [NaRb6F][(UO2)3(Si 2O7)2] (compound 2), have been synthesized at high temperature using mixtures of alkali metal fluorides as fluxes and structurally characterized by single-crystal X-ray diffraction. Both compounds contain UO6 tetragonal bipyramids linked by disilicate groups to form three-dimensional framework structures with identical framework composition but different framework structures and salt inclusions. Both structures contain elliptical 12-ring channels where the K2Cs4F and Rb 6F units are located. They are the first examples of salt-inclusion uranium silicates. The frameworks of 1 and 2 are thermally stable up to 850 and 750 °C, as indicated from powder X-ray diffraction. The 19F and 29Si MAS NMR spectra and the second-harmonic-generation response of 1 are consistent with the crystal structure analysis results. Crystal data: [K3Cs4F][(UO2)3(Si2O 7)2], Cmc21 a = 7.8095(3) A, b = 22.2819(7) Å, c= 14.0861(4) Å, and Z= 4; [NaRb6F][(UO 2)3(Si2O7)2], Pnnm, a=11.1429(2) Å, 0=13.5151(3) Å, c=7.8868(1) Å, and Z=2.

AB - Two salt-inclusion uranyl silicates, [K3Cs4F] [(UO2)3(Si2O7)2] (compound 1) and [NaRb6F][(UO2)3(Si 2O7)2] (compound 2), have been synthesized at high temperature using mixtures of alkali metal fluorides as fluxes and structurally characterized by single-crystal X-ray diffraction. Both compounds contain UO6 tetragonal bipyramids linked by disilicate groups to form three-dimensional framework structures with identical framework composition but different framework structures and salt inclusions. Both structures contain elliptical 12-ring channels where the K2Cs4F and Rb 6F units are located. They are the first examples of salt-inclusion uranium silicates. The frameworks of 1 and 2 are thermally stable up to 850 and 750 °C, as indicated from powder X-ray diffraction. The 19F and 29Si MAS NMR spectra and the second-harmonic-generation response of 1 are consistent with the crystal structure analysis results. Crystal data: [K3Cs4F][(UO2)3(Si2O 7)2], Cmc21 a = 7.8095(3) A, b = 22.2819(7) Å, c= 14.0861(4) Å, and Z= 4; [NaRb6F][(UO 2)3(Si2O7)2], Pnnm, a=11.1429(2) Å, 0=13.5151(3) Å, c=7.8868(1) Å, and Z=2.

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M3 - 期刊論文

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AN - SCOPUS:69549096430

SN - 0020-1669

VL - 48

SP - 8357

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 17

ER -

Flux synthesis of salt-inclusion uranyl silicates: [K3Cs 4F][(UO2)3(Si2O7) 2] and [NaRb6F][(UO2)3(Si 2O7)2]

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Flux synthesis of salt-inclusion uranyl silicates: [K₃Cs ₄F][(UO₂)₃(Si₂O₇) ₂] and [NaRb₆F][(UO₂)₃(Si ₂O₇)₂]