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A Detailed Study of the Dehydration Process in Synthetic Strelkinite, Na[(UO2)(VO4)] · nH2O (n = 0, 1, 2)

  • Evgeny V. Suleimanov , Nikolay V. Somov , Evgeny V. Chuprunov , Ekaterina F. Mayatskikh , Wulf Depmeier and Evgeny V. Alekseev
Published/Copyright: July 16, 2012
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Zeitschrift für Kristallographie - Crystalline Materials
From the journal Zeitschrift für Kristallographie - Crystalline Materials Volume 227 Issue 8

Abstract

Synthetic strelkinite Na[(UO2)(VO4)] · nH2O (n = 0, 1, 2) was systematically investigated by single crystal X-ray diffraction and thermoanalytical methods. The anhydrous form and two hydrates were isolated as single crystals and the structures of these phases solved: Na[(UO2)(VO4)], monoclinic, P21/c, a = 6.0205(1) Å, b = 8.3365(1) Å, c = 10.4164(2) Å, β = 100.466(2)°, V = 514.10(1) Å3, R1 = 0.0337; Na[(UO2)(VO4)] · H2O, monoclinic, P21/c, a = 7.722(2) Å, b = 8.512(1) Å, c = 10.480(4) Å, β = 113.18(3)°, V = 633.3(3) Å3, R1 = 0.1658; Na[(UO2)(VO4)] · 2 H2O, monoclinic, P21/n, a = 16.2399(5) Å, b = 8.2844(2) Å, c = 10.5011(2) Å, β = 97.644(2)°, V = 1400.24(6) Å3, R1 = 0.0776. A possible mechanism of the structural transformation processes during dehydration is proposed based on the structures of the anhydrous phase and the hydrates.

Keywords: strelkinite; uranyl vandate; Dehydration; Structural changes; Crystal structure
* Correspondence address: Forschungszentrum Jülich GmbH, Institute for Energy and Climate Research, (IEK - 6), 52428 Jülich, Deutschland,
Published Online: 2012-07-16
Published in Print: 2012-08

© by Oldenbourg Wissenschaftsverlag, München, Germany

Articles in the same Issue

  1. Elastic stiffness coefficients of thenardite and their pressure and temperature dependence
  2. Compressibility of microporous materials with CHA topology: 2. ALPO-34
  3. A Detailed Study of the Dehydration Process in Synthetic Strelkinite, Na[(UO2)(VO4)] · nH2O (n = 0, 1, 2)
  4. Mixed-ligand coordination of the (UO2)2+ cation and apophyllite topology of uranyl chlorochromate layer in the structure of ((CH3)2CHNH3)[(UO2)(CrO4)Cl(H2O)]
  5. Synthesis, crystal structure and optical properties of the catena-metaphosphates Ce(PO3)4 and U(PO3)4
  6. The Solid Solution CeAgxZn11–x (x ≤ 2.5)
  7. Ruthenate-ferrites AMRu5O11 (A = Sr, Ba; M = Ni, Zn): Distortion of kagome nets via metal–metal bonding
  8. A Mixed Valent Thioantimonate(III,V): [SbS3]3– and [SbS4]3– as bidentate ligands: Solvothermal synthesis and crystal structure of {Mn(dien)2}2[MnSb2S7]
  9. Hydrates of the Alkali Trioxidomonosulfidomolybdates and -tungstates: K2[(Mo/W)O3S] · 1.5H2O and (Rb/Cs)2[(Mo/W)O3S] · H2O
  10. Crystal structure of 1,4-diazoniabicyclo[2.2.2]octane diiodide monohydrate
  11. Derivation of bond-valence parameters for some cation-oxygen pairs on the basis of empirical relationships between ro and b
  12. The role of the Pb2+ lone electron pair for bond valence sum analysis in mullite-type PbMBO4 (M = Al, Mn and Fe) compounds
  13. The role of lone pairs in the ferroelastic phase transition in the palmierite-type lead phosphate-arsenate solid solution
  14. The role of H2O in controlling bond topology:I. The [6]Mg(SO4)(H2O)n (n = 0–11) structures
  15. Towards systematics of calcite biocrystals: insight from the inside
  16. The use of periodic graphs for representing and analysing crystal structures
  17. Book Review
https://doi.org/10.1524/zkri.2012.1480
Keywords for this article
strelkinite; uranyl vandate; Dehydration; Structural changes; Crystal structure

Articles in the same Issue

  1. Elastic stiffness coefficients of thenardite and their pressure and temperature dependence
  2. Compressibility of microporous materials with CHA topology: 2. ALPO-34
  3. A Detailed Study of the Dehydration Process in Synthetic Strelkinite, Na[(UO2)(VO4)] · nH2O (n = 0, 1, 2)
  4. Mixed-ligand coordination of the (UO2)2+ cation and apophyllite topology of uranyl chlorochromate layer in the structure of ((CH3)2CHNH3)[(UO2)(CrO4)Cl(H2O)]
  5. Synthesis, crystal structure and optical properties of the catena-metaphosphates Ce(PO3)4 and U(PO3)4
  6. The Solid Solution CeAgxZn11–x (x ≤ 2.5)
  7. Ruthenate-ferrites AMRu5O11 (A = Sr, Ba; M = Ni, Zn): Distortion of kagome nets via metal–metal bonding
  8. A Mixed Valent Thioantimonate(III,V): [SbS3]3– and [SbS4]3– as bidentate ligands: Solvothermal synthesis and crystal structure of {Mn(dien)2}2[MnSb2S7]
  9. Hydrates of the Alkali Trioxidomonosulfidomolybdates and -tungstates: K2[(Mo/W)O3S] · 1.5H2O and (Rb/Cs)2[(Mo/W)O3S] · H2O
  10. Crystal structure of 1,4-diazoniabicyclo[2.2.2]octane diiodide monohydrate
  11. Derivation of bond-valence parameters for some cation-oxygen pairs on the basis of empirical relationships between ro and b
  12. The role of the Pb2+ lone electron pair for bond valence sum analysis in mullite-type PbMBO4 (M = Al, Mn and Fe) compounds
  13. The role of lone pairs in the ferroelastic phase transition in the palmierite-type lead phosphate-arsenate solid solution
  14. The role of H2O in controlling bond topology:I. The [6]Mg(SO4)(H2O)n (n = 0–11) structures
  15. Towards systematics of calcite biocrystals: insight from the inside
  16. The use of periodic graphs for representing and analysing crystal structures
  17. Book Review
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