Molybdenum(III) bromide

<h2 id="preparation">Preparation</h2>
Molybdenum(III) bromide is produced by the reaction of elemental <a href="/facts/Molybdenum/RX6vp2bF">molybdenum</a> and <a href="/facts/Bromine/oLfj3C7D">bromine</a> at 350 °C (662 °F).<a class="footnote-ref" id="fnref:1" href="#fn:1">1</a>

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    {\displaystyle \mathrm {2\ Mo+3\ Br_{2}\longrightarrow 2\ MoBr_{3}} }

It can also be prepared from the reduction of <a href="/facts/Molybdenum(IV)_bromide/f6jCYH5j">molybdenum(IV) bromide</a> with molybdenum metal, <a href="/facts/Hydrogen/BoYHjl0J">hydrogen</a> gas, or a <a href="/facts/Hydrocarbon/Dcg95Ju5">hydrocarbon</a>.<a class="footnote-ref" id="fnref:2" href="#fn:2">2</a>
It has a structure consisting of infinite chains of face-sharing octahedra with alternatingly short and long Mo-Mo contacts. The same structure is adopted by the tribromides of ruthenium and technetium.<a class="footnote-ref" id="fnref:3" href="#fn:3">3</a><a class="footnote-ref" id="fnref:4" href="#fn:4">4</a> In contrast, in the high temperature phase of <a href="/facts/Titanium(III)_iodide/qPkSbtPI">titanium(III) iodide</a>, the Ti---Ti separation is invariant.

<h2 id="references">References</h2>

<ol>
<li id="fn:1">F. Hein, S. Herzog "Molybdenum(III) Bromide" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 1407. <a href="#fnref:1" class="footnote-back-ref">↩</a></li>
<li id="fn:2">Perry, Dale L. (2011). Handbook of Inorganic Compounds (2nd ed.). Boca Raton: Taylor & Francis. p. 279. ISBN 978-1-4398-1461-1. <a href="978-1-4398-1461-1" target="_blank">978-1-4398-1461-1</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></li>
<li id="fn:3">Dietrich Babel: Die Verfeinerung der MoBr3-Struktur (Refinement of the MoBr3-Structure) In: Journal of Solid State Chemistry. 1972, volume 4, S. 410–416, doi:10.1016/0022-4596(72)90156-9. <a href="/wiki/Journal_of_Solid_State_Chemistry" target="_blank">/wiki/Journal_of_Solid_State_Chemistry</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></li>
<li id="fn:4">Order-Disorder Transformation in RuBr3 and MoBr3: A two-Dimensional Ising Model" Merlino, S.; Labella, L.; Marchetti, F.; Toscani, S. Chemistry of Materials 2004, volume 16, p3895-p3903 <a href="#fnref:4" class="footnote-back-ref">↩</a></li>
</ol>

Molybdenum(III) bromide open-in-new

Molybdenum(III) bromide