“Hard–Soft” Synthesis of SrCrO3−δ Superstructure Phases†
Dr. Angel M. Arévalo-López
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorDr. Jennifer A. Rodgers
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorMark S. Senn
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorDr. Falak Sher
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
School of Science and Engineering, Lahore University of Management Sciences (LUMS) (Pakistan)
Search for more papers by this authorJames Farnham
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorWilliam Gibbs
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorCorresponding Author
Prof. J. Paul Attfield
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)Search for more papers by this authorDr. Angel M. Arévalo-López
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorDr. Jennifer A. Rodgers
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorMark S. Senn
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorDr. Falak Sher
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
School of Science and Engineering, Lahore University of Management Sciences (LUMS) (Pakistan)
Search for more papers by this authorJames Farnham
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorWilliam Gibbs
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorCorresponding Author
Prof. J. Paul Attfield
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)
Centre for Science at Extreme Conditions (CSEC) and School of Chemistry, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ (UK)Search for more papers by this authorWe acknowledge support from the EPSRC, STFC, the Leverhulme Trust, the Royal Societies of Edinburgh and London, and LUMS.
Graphical 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.
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