Startseite The crystal structure of saleeite, Mg[UO2PO4]2 · 10H2O
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The crystal structure of saleeite, Mg[UO2PO4]2 · 10H2O

Veröffentlicht/Copyright: 25. August 2010
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Zeitschrift für Kristallographie - Crystalline Materials
Aus der Zeitschrift Zeitschrift für Kristallographie - Crystalline Materials Band 177 Heft 3-4

Abstract

Saleeite, Mg [UO2PO4]2 · 10H2O, is monoclinic, space group P21/c, with a = 6.951(3), b = 19.947(8), c = 9.896(4) Å, β = 135.17(2)°, Z = 2, U = 967.4 Å3 and Dc = 3.21 g/cm3, F000 = 844, u = 161 cm−1, λ = 0.7107 Å (MoKα), at 298 K. Least-squares refinement of the structure with 1324 single reflexions gave R = 0.053. The structure consists of UO2PO4 sheets, similar to those in threadgoldite, between which are located Mg2+ ions and water molecules. The Mg2+ ions are octahedrally coordinated to six of the 10 interlayer waters, but the last four water molecules are not bound to Mg. Saleeite is pseudotetragonal, the last few water molecules distorting it from true tetragonal symmetry. Previous assignments of saleeite as tetragonal appear to be incorrect; the other fully hydrated members of the autunite series may also have symmetry lower than the tetragonal symmetry assumed in the literature.

Published Online: 2010-8-25
Published in Print: 1986-2-1

© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München

Artikel in diesem Heft

  1. The thermal expansion of Na2CO3
  2. Crystal structure of a beryllium-potassium polyphosphate: BeK(PO3)3
  3. 4-Amino-2-bromo-6-methyl-5,6,7,8-tetrahydropyrido[2,3-d]-pyrimidine
  4. An X-ray analysis of anomalous dispersion effects, anharmonicity and thermal vibrations in gallium phosphide
  5. An empirical model of optical susceptibilities of crystals I. Refractivity in alkali halides
  6. An empirical model of optical susceptibilities of crystals II. Elasto-optical effect in alkali halides
  7. Refinements of Ag3AsSe3 based on high-order thermal-motion tensors
  8. Crystal and molecular structure of α-naphthil
  9. The crystal and molecular structure of endo,endo-2,6-diphenacyl[4]peristylane
  10. Ancient oriental pattern and related zeolite type networks
  11. The crystal structure of saleeite, Mg[UO2PO4]2 · 10H2O
  12. Calculation of the electron diffraction intensities using the multi-slice method
  13. The triethanolamine complexes of calcium azide and strontium azide
  14. Crystal structure of trans-4-propyl cyclohexyl-4(trans-4-ethyl cyclohexyl) benzoate
  15. The crystal structure of β-NbPO5
  16. Structure of 2,7-dihydro-3,5,8-trimethylazuleno (6-5-b) furan-2,7-dione
  17. Die isotypen Phasen HEF6 · 5H2O · HF (E = P, As, Sb): Neubestimmung der Strukturen an Einkristallen1
  18. Crystal structure of a mixed crystal containing 3-benzoyl-2-phenyl-furo[2,3-b]quinoxaline and 3-benzoyl-2-phenyl-thieno[2,3-b]quinoxaline
  19. Splitpositionen für Alkalimetallkationen in den Thioindaten MIn5S8 (M = K, Rb, Cs)?
  20. Crystal structure of E-2-styrylquinoline(STQ), C17H13N
  21. 10.1515/zkri.1986.177.3-4.155
  22. 10.1515/zkri.1986.177.3-4.165
  23. 10.1515/zkri.1986.177.3-4.171
  24. 10.1515/zkri.1986.177.3-4.177
  25. 10.1515/zkri.1986.177.3-4.185
  26. 10.1515/zkri.1986.177.3-4.201
  27. 10.1515/zkri.1986.177.3-4.211
  28. 10.1515/zkri.1986.177.3-4.219
  29. 10.1515/zkri.1986.177.3-4.229
  30. 10.1515/zkri.1986.177.3-4.237
  31. 10.1515/zkri.1986.177.3-4.247
  32. 10.1515/zkri.1986.177.3-4.255
  33. 10.1515/zkri.1986.177.3-4.263
  34. 10.1515/zkri.1986.177.3-4.271
  35. 10.1515/zkri.1986.177.3-4.277
  36. 10.1515/zkri.1986.177.3-4.287
  37. 10.1515/zkri.1986.177.3-4.291
  38. 10.1515/zkri.1986.177.3-4.301
  39. 10.1515/zkri.1986.177.3-4.307
  40. 10.1515/zkri.1986.177.3-4.315
https://doi.org/10.1524/zkri.1986.177.3-4.247

Artikel in diesem Heft

  1. The thermal expansion of Na2CO3
  2. Crystal structure of a beryllium-potassium polyphosphate: BeK(PO3)3
  3. 4-Amino-2-bromo-6-methyl-5,6,7,8-tetrahydropyrido[2,3-d]-pyrimidine
  4. An X-ray analysis of anomalous dispersion effects, anharmonicity and thermal vibrations in gallium phosphide
  5. An empirical model of optical susceptibilities of crystals I. Refractivity in alkali halides
  6. An empirical model of optical susceptibilities of crystals II. Elasto-optical effect in alkali halides
  7. Refinements of Ag3AsSe3 based on high-order thermal-motion tensors
  8. Crystal and molecular structure of α-naphthil
  9. The crystal and molecular structure of endo,endo-2,6-diphenacyl[4]peristylane
  10. Ancient oriental pattern and related zeolite type networks
  11. The crystal structure of saleeite, Mg[UO2PO4]2 · 10H2O
  12. Calculation of the electron diffraction intensities using the multi-slice method
  13. The triethanolamine complexes of calcium azide and strontium azide
  14. Crystal structure of trans-4-propyl cyclohexyl-4(trans-4-ethyl cyclohexyl) benzoate
  15. The crystal structure of β-NbPO5
  16. Structure of 2,7-dihydro-3,5,8-trimethylazuleno (6-5-b) furan-2,7-dione
  17. Die isotypen Phasen HEF6 · 5H2O · HF (E = P, As, Sb): Neubestimmung der Strukturen an Einkristallen1
  18. Crystal structure of a mixed crystal containing 3-benzoyl-2-phenyl-furo[2,3-b]quinoxaline and 3-benzoyl-2-phenyl-thieno[2,3-b]quinoxaline
  19. Splitpositionen für Alkalimetallkationen in den Thioindaten MIn5S8 (M = K, Rb, Cs)?
  20. Crystal structure of E-2-styrylquinoline(STQ), C17H13N
  21. 10.1515/zkri.1986.177.3-4.155
  22. 10.1515/zkri.1986.177.3-4.165
  23. 10.1515/zkri.1986.177.3-4.171
  24. 10.1515/zkri.1986.177.3-4.177
  25. 10.1515/zkri.1986.177.3-4.185
  26. 10.1515/zkri.1986.177.3-4.201
  27. 10.1515/zkri.1986.177.3-4.211
  28. 10.1515/zkri.1986.177.3-4.219
  29. 10.1515/zkri.1986.177.3-4.229
  30. 10.1515/zkri.1986.177.3-4.237
  31. 10.1515/zkri.1986.177.3-4.247
  32. 10.1515/zkri.1986.177.3-4.255
  33. 10.1515/zkri.1986.177.3-4.263
  34. 10.1515/zkri.1986.177.3-4.271
  35. 10.1515/zkri.1986.177.3-4.277
  36. 10.1515/zkri.1986.177.3-4.287
  37. 10.1515/zkri.1986.177.3-4.291
  38. 10.1515/zkri.1986.177.3-4.301
  39. 10.1515/zkri.1986.177.3-4.307
  40. 10.1515/zkri.1986.177.3-4.315
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