What is it about?
The low-temperature structure of titanium(III) oxybromide is reported as a twofold superstructure of the crystal structure at room temperature. Structure refinements and analysis were carried out within the higher-dimensional superspace approach.
Why is it important?
Both the low-temperature and the room-temperature structures of TiOBr are isostructural with the corresponding structures of TiOCl. The results indicate that at low temperatures TiOBr is in a spin-Peierls state, similar to that of TiOCl, but with the modulations and relevant interactions smaller than in the latter compound.
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This page is a summary of: The twofold superstructure of titanium(III) oxybromide atT= 17.5 K, Acta Crystallographica Section C Crystal Structure Communications, April 2005, International Union of Crystallography, DOI: 10.1107/s010827010500867x.
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