Abstract
The crystal structure of Bi0.7Yb1.3WO6 (a representative of the isomorphous series Bi(2-x)Ln(x)WO(6); 0.3 < x < 1.3, for most lanthanides) has been determined. Contrary to previous suggestions, this structure type (space group A2, a = 8.1070(3) Angstrom, b = 3.7048(2) Angstrom, c = 15.8379(8) Angstrom, beta = 103.548(4)degrees) contains layers of stoichiometry WO4, containing WO6 octahedra sharing both edges and corners. These layers alternate with fluorite-like (Bi/Yb)(2)O-2 sheets; this is a novel and unexpected arrangement and contrasts dramatically with the purely corner-sharing octahedral WO4-layer in the parent Aurivillius phase Bi2WO6. (C) 2004 Elsevier Inc. All rights reserved.
Original language | English |
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Pages (from-to) | 2632-2634 |
Number of pages | 3 |
Journal | Journal of Solid State Chemistry |
Volume | 177 |
DOIs | |
Publication status | Published - Jul 2004 |
Keywords
- bismuth oxide
- Aurivillius phase
- layered structure
- powder neutron diffraction
- BISMUTH LANTHANUM TUNGSTATE
- DIELECTRIC-PROPERTIES
- CRYSTAL-STRUCTURE
- CATION DISORDER
- FAMILY
- DIFFRACTION
- OXIDES
- BI2WO6
- SERIES