What is it about?

Accurate structural parameters are reported for the high-temperature crystal structure at T=326K and for the low-temperature structures at both 273 and 100 K.

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Why is it important?

Above Tc= 323 K the structure type is containing chains of equidistant metal atoms. A twofold superstructure develops below Tc, resulting in the RuBr3 structure type showing a dimerization of the metal chains. The magnitude of the distortion is found to be the largest amongst the known transition metal trihalides.

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This page is a summary of: Low- and high-temperature crystal structures of, Journal of Solid State Chemistry, March 2009, Elsevier, DOI: 10.1016/j.jssc.2008.11.028.
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