Crystal chemistry of anion-excess ReO3-related phases. III

The crystal structure of the high-pressure (4-8GPa) form of zirconium tetrafluoride, [gamma]-ZrF4, is based on the association by corner- and edge-sharing of ZrF8 triangulated dodecahedra, forming a three-dimensional framework. It presents some analogies with high-temperature [alpha]-ZrF4 but clearl...

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Bibliographic Details
Published inActa crystallographica. Section C, Crystal structure communications Vol. 70; no. 8; p. 742
Main Author Laval, Jean-Paul
Format Journal Article
LanguageEnglish
Published Chester Wiley Subscription Services, Inc 01.08.2014
Subjects
Crystal structure
Crystallography
High temperature
Zirconium
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Summary:The crystal structure of the high-pressure (4-8GPa) form of zirconium tetrafluoride, [gamma]-ZrF4, is based on the association by corner- and edge-sharing of ZrF8 triangulated dodecahedra, forming a three-dimensional framework. It presents some analogies with high-temperature [alpha]-ZrF4 but clearly constitutes a new MX4 structure type. The main MX4 ionic structure types, and especially those deriving from the `anion-excess ReO3-type', are compared and it is shown that the TeF4 structure can also be included in this family. [PUBLICATION ABSTRACT]
ISSN:0108-2701
1600-5759
DOI:10.1107/S2053229614014338