Hiley, Craig I., Lees, Martin R., Fisher, Janet M., Thompsett, David, Agrestini, Stefano, Smith, Ronald I. and Walton, Richard I. (2014) Ruthenium (V) oxides from low-temperature hydrothermal synthesis. Angewandte Chemie International Edition, Volume 53 (Number 17). pp. 4423-4427. doi:10.1002/anie.201310110

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Abstract

Low-temperature (200 °C) hydrothermal synthesis of the ruthenium oxides Ca1.5Ru2O7, SrRu2O6, and Ba2Ru3O9(OH) is reported. Ca1.5Ru2O7 is a defective pyrochlore containing RuV/VI; SrRu2O6 is a layered RuV oxide with a PbSb2O6 structure, whilst Ba2Ru3O9(OH) has a previously unreported structure type with orthorhombic symmetry solved from synchrotron X-ray and neutron powder diffraction. SrRu2O6 exhibits unusually high-temperature magnetic order, with antiferromagnetism persisting to at least 500 K, and refinement using room temperature neutron powder diffraction data provides the magnetic structure. All three ruthenates are metastable and readily collapse to mixtures of other oxides upon heating in air at temperatures around 300–500 °C, suggesting they would be difficult, if not impossible, to isolate under conventional high-temperature solid-state synthesis conditions.

Item Type:	Journal Article
Divisions:	Faculty of Science > Chemistry Faculty of Science > Physics
Journal or Publication Title:	Angewandte Chemie International Edition
Publisher:	Wiley - V C H Verlag GmbH & Co. KGaA
ISSN:	1433-7851
Official Date:	22 April 2014
Dates:	Date Event 22 April 2014 Published 17 April 2014 Available 21 November 2013 Submitted
Volume:	Volume 53
Number:	Number 17
Page Range:	pp. 4423-4427
DOI:	10.1002/anie.201310110
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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