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]
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| C3AlN3 | |
| Molar mass | 105.036 g·mol−1 |
| Appearance | white solid |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis and properties
editAluminium 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 compound was produced in 2001 by the reaction of lithium tetrachloroaluminate and trimethylsilyl cyanide in diethyl ether. Its atoms form a lattice, and X-ray crystallography shows that its crystals form an octahedral Prussian-blue-like structure.[3]
References
edit- ^ a b c 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.
- ^ 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.
- ^ 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. Bibcode:2001JSSCh.159..244W. doi:10.1006/jssc.2001.9192.
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