The twofold superstructure of titanium(III) oxybromide atT= 17.5 K

Lukáš Palatinus, Andreas Schönleber, Sander van Smaalen
  • Acta Crystallographica Section C Crystal Structure Communications, April 2005, International Union of Crystallography
  • DOI: 10.1107/s010827010500867x

Twofold superstructure of TiOBr at T = 17.5 K

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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The following have contributed to this page: Priv.-Doz. Dr. Andreas Schönleber and Dr Lukas Palatinus