"Hard-soft" synthesis of SrCrO 3-δ superstructure phases

Angel M. Arévalo-Lõpez, Jennifer A. Rodgers, Mark S. Senn, Falak Sher, James Farnham, William Gibbs, J. Paul Attfield*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Dense metastable phases obtained under "hard" high-pressure conditions may contain instabilities such as unusual oxidation states or coordination environments that may be partially relieved by "soft" low-temperature chemistry. The synthesis of SrCrO2.8 (see picture, left) and SrCrO2.75 (right) phases from the high-pressure perovskite SrCrO3 leads to a relaxation of the coordination around Cr4+ from octahedral to tetrahedral.
Original languageEnglish
Pages (from-to)10791-10794
Number of pages4
JournalAngewandte Chemie International Edition
Volume51
Issue number43
Early online date26 Sep 2012
DOIs
Publication statusPublished - 22 Oct 2012

Keywords

  • "soft" chemistry
  • high-pressure chemistry
  • oxides
  • perovskite phases
  • vacancy ordering

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