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Structural and Solid State Chemistry of Mixed Valence Oxides

Published online by Cambridge University Press:  21 February 2011

Galy Jean
Galy Jean*
Affiliation:
Centre d'Elaboration de Matériaux et d'Etudes Structurales – Laboratoire d'Optique Electronique C N R S, 29, rue Jeanne Marvig, B.P. 4347 – 31055 TOULOUSE Cedex – France.
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Abstract

The structural evolution versus oxygen adsorption ↔ desorption of the LnBa2Cu3O6+x series, the influence of rare-earth substitution on oxygen network and copper coordination (CN = 2, 4, 4 + 1, 5) in Bi2Sr2Ca1−yLnyCu2O8 series (Ln = La, Yb; 0≤y≤1) are followed. Images of parent mixed valence oxides, i.e. vanadium bronzes, with their single or double layers structures versus intercalated ions with ideal intergrowth structures like the new Na0.70V2O5 oxybronze are presented. The ability to exhibit double non stoichiometry, i.e. LixV3O8−y (0≤y≤1) in the homologous series LixV3(1+n)O8+7n (0≤n≤∞) is explained.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 156: Symposium M – High Temperature Superconductors: Relationships Between Properties, Structure, and Solid State Chemistry , 1989 , 25
Copyright
Copyright © Materials Research Society 1989

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References

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