Aluminium cyanide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/3CN.Al/c3*1-2;/q3*-1;+3
    Key: BIABJQLRIVAXSJ-UHFFFAOYSA-N
  • [C-]#N.[C-]#N.[C-]#N.[Al+3]
Properties
C3AlN3
Molar mass 105.036 g·mol−1
Appearance white solid
Reacts
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Aluminium cyanide is a metallic cyanide with a chemical formula of Al(CN)3.[1] It is a white solid that undergoes hydrolysis to produce aluminium hydroxide and hydrogen cyanide.[2]

Synthesis and properties

Aluminium cyanide was first produced in 1924 as its ammoniate, Al(CN)3·5NH3, by reacting aluminium metal and mercury(II) cyanide in liquid ammonia to prevent hydrolysis.[1]

2 Al + 3 Hg(CN)2 → 2 Al(CN)3 + 3 Hg

When the ammoniate contacts water, it produces aluminium hydroxide, ammonia, and ammonium cyanide.[1]

The pure compound was produced in 2001 by the reaction of lithium tetrachloroaluminate and trimethylsilyl cyanide in diethyl ether and its crystals form an octahedral Prussian-blue-type structure.[3]

References

  1. 1 2 3 Bergstrom, F. W. (July 1924). "The Reaction Between Mercuric Cyanide and Certain Metals in Liquid Ammonia". Journal of the American Chemical Society. 46 (7): 1559–1568. doi:10.1021/ja01672a002.
  2. ↑ Axel Schulz; Jonas Surkau (2022). "Main group cyanides: from hydrogen cyanide to cyanido-complexes". Reviews in Inorganic Chemistry. 43 (1): 49–188. doi:10.1515/revic-2021-0044.
  3. ↑ Darrick Williams; Brett Pleune; Kurt Leinenweber; J. Kouvetakis (2001). "Synthesis and Structural Properties of the Binary Framework C–N Compounds of Be, Mg, Al, and Tl". Journal of Solid State Chemistry. 159 (1): 244–250. doi:10.1006/jssc.2001.9192.
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