Source:http://linkedlifedata.com/resource/pubmed/id/15258395
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
Pt 4
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| pubmed:dateCreated |
2004-7-19
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| pubmed:abstractText |
A high-pressure phase of vanadium pentoxide, denoted beta-V2O5, has been prepared at P = 6.0 GPa and T = 1073 K. The crystal structure of beta-V2O5 has been studied by X-ray and neutron powder diffraction, and high-resolution transmission electron microscopy. The V atoms are six-coordinated within distorted VO6 octahedra. The structure is built up of quadruple units of edge-sharing VO6 octahedra linked by sharing edges along [010] and mutually connected by sharing corners along [001]. This arrangement forms layers of V4O10 composition in planes parallel to (100). The layers are mutually held together by weak forces. beta-V2O5 is metastable and transforms to alpha-V2O5 at 643-653 K under ambient pressure. Structural relationships between beta- and alpha-V2O5, and between beta-V2O5 and B-Ta2O5-type structures are discussed. The high-pressure beta-V2O5 layer structure can be considered as the parent of a new series of vanadium oxide bronzes with cations intercalated between the layers.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Aug
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| pubmed:issn |
0108-7681
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
60
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
375-81
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| pubmed:dateRevised |
2007-7-24
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| pubmed:year |
2004
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| pubmed:articleTitle |
Structure of a high-pressure phase of vanadium pentoxide, beta-V2O5.
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| pubmed:affiliation |
Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, 142190 Moscow Region.
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| pubmed:publicationType |
Journal Article
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