Aluminium iodide

<h2 id="structure">Structure</h2>
<p>Solid AlI3 is dimeric, consisting of Al2I6, similar to that of <a href="/facts/Aluminium_tribromide/RjaCD8er">AlBr3</a>.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> The structure of monomeric and dimeric forms have been characterized in the gas phase.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> The monomer, AlI3, is trigonal planar with a bond length of 2.448(6) Å, and the bridged dimer, Al2I6, at 430 K is a similar to <a href="/facts/Aluminium_chloride/xrhvSxDr">Al2Cl6</a> and <a href="/facts/Aluminium_bromide/RjaCD8er">Al2Br6</a> with Al−I bond lengths of 2.456(6) Å (terminal) and 2.670(8) Å (bridging). The dimer is described as floppy with an equilibrium geometry of D2h.
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<h2 id="aluminiumi-iodide">Aluminium(I) iodide</h2>
<p class="note">Main article: <a href="/facts/Aluminium_monoiodide/tKXv6xUw">Aluminium monoiodide</a></p>

<p>The name "aluminium iodide" is widely assumed to describe the triiodide or its dimer. In fact, a monoiodide also enjoys a role in the Al–I system, although the compound AlI is unstable at room temperature relative to the triiodide:<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a>
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3 AlI  →  AlI3 + 2 Al
<p>An illustrative derivative of aluminium monoiodide is the cyclic <a href="/facts/Adduct/vBpTmotm">adduct</a> formed with <a href="/facts/Triethylamine/6DjzaGGv">triethylamine</a>, Al4I4(NEt3)4.
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<h2 id="external-links">External links</h2>
<ul><li> Media related to Aluminium iodide at Wikimedia Commons</li></ul>

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

<ol>
<li id="fn:1"><p>Watt, George W; Hall, James L; Taylor, William Lloyd; Kleinberg, Jacob (1953). "Aluminum Iodide". Inorganic Syntheses. Vol. 4. pp. 117–119. doi:10.1002/9780470132357.ch39. ISBN 9780470132357. {{cite book}}: ISBN / Date incompatibility (help) <a href="9780470132357" target="_blank">9780470132357</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Gugelchuk, M. (2004). "Aluminum Iodide". In L. Paquette (ed.). Encyclopedia of Reagents for Organic Synthesis. New York: J. Wiley & Sons. doi:10.1002/047084289X.ra083. ISBN 0471936235. <a href="0471936235" target="_blank">0471936235</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>Troyanov, Sergey I.; Krahl, Thoralf; Kemnitz, Erhard (2004). "Crystal structures of GaX3(X= Cl, Br, I) and AlI3". Zeitschrift für Kristallographie. 219 (2–2004): 88–92. doi:10.1524/zkri.219.2.88.26320. S2CID 101603507. <a href="/wiki/Doi_(identifier)" target="_blank">/wiki/Doi_(identifier)</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
<li id="fn:4"><p>Hargittai, Magdolna; Réffy, Balázs; Kolonits, Mária (2006). "An Intricate Molecule: Aluminum Triiodide. Molecular Structure of AlI3and Al2I6 from Electron Diffraction and Computation". The Journal of Physical Chemistry A. 110 (10): 3770–3777. doi:10.1021/jp056498e. PMID 16526661. <a href="/wiki/Doi_(identifier)" target="_blank">/wiki/Doi_(identifier)</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li>
<li id="fn:5"><p>Dohmeier, C.; Loos, D.; Schnöckel, H. (1996). "Aluminum(I) and Gallium(I) Compounds: Syntheses, Structures, and Reactions". Angewandte Chemie International Edition. 35 (2): 129–149. doi:10.1002/anie.199601291. <a href="/wiki/Doi_(identifier)" target="_blank">/wiki/Doi_(identifier)</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li>
</ol>

Aluminium iodide open-in-new

Aluminium iodide