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High-pressure structures of α- and δ-ZrMo2O8

Krogh Andersen, Anne Marie and Carlson, Stefan LU (2001) In Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials 57(1). p.20-26
Abstract

In situ high-pressure synchrotron X-ray powder diffraction studies of trigonal α-ZrMo2O8, zirconium molybdate, have been performed from ambient conditions to 1.9 GPa, over the α-δ phase transition at 1.06-1.11 GPa. The monoclinic structure of δ-ZrMo2O8, stable between 1.1 and 2.5 GPa at 298 K, has been solved by direct methods and refined using the Rietveld method. Significant distortions of the ZrO6 and MoO4 polyhedral elements are observed for δ-ZrMo2O8, as compared to the ambient conditions of the α-phase, while the packing of anions becomes more symmetric at high pressure.

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author
organization
publishing date
type
Contribution to journal
publication status
published
in
Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials
volume
57
issue
1
pages
7 pages
publisher
Wiley-Blackwell
external identifiers
  • Scopus:0002812973
ISSN
0108-7681
DOI
10.1107/S0108768100013215
language
English
LU publication?
yes
id
23f9bf16-8742-43a7-81d4-21caed659f9d
date added to LUP
2016-05-04 11:45:30
date last changed
2016-10-19 09:52:29
@misc{23f9bf16-8742-43a7-81d4-21caed659f9d,
  abstract     = {<p>In situ high-pressure synchrotron X-ray powder diffraction studies of trigonal α-ZrMo<sub>2</sub>O<sub>8</sub>, zirconium molybdate, have been performed from ambient conditions to 1.9 GPa, over the α-δ phase transition at 1.06-1.11 GPa. The monoclinic structure of δ-ZrMo<sub>2</sub>O<sub>8</sub>, stable between 1.1 and 2.5 GPa at 298 K, has been solved by direct methods and refined using the Rietveld method. Significant distortions of the ZrO<sub>6</sub> and MoO<sub>4</sub> polyhedral elements are observed for δ-ZrMo<sub>2</sub>O<sub>8</sub>, as compared to the ambient conditions of the α-phase, while the packing of anions becomes more symmetric at high pressure.</p>},
  author       = {Krogh Andersen, Anne Marie and Carlson, Stefan},
  issn         = {0108-7681},
  language     = {eng},
  number       = {1},
  pages        = {20--26},
  publisher    = {ARRAY(0x9ca9378)},
  series       = {	Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials },
  title        = {High-pressure structures of α- and δ-ZrMo<sub>2</sub>O<sub>8</sub>},
  url          = {http://dx.doi.org/10.1107/S0108768100013215},
  volume       = {57},
  year         = {2001},
}