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EspañolALUMINIUM IODIDE
(Redirected from Aluminium triiodide)
'Aluminium iodide' is any chemical compound containing only aluminium and iodine. Invariably, the name refers to a compound of the composition AlI3, formed by the reaction of aluminium and iodine[1] or the action of HI on Al metal. As for the related chloride and bromide, AlI3 is a strong Lewis acid and should be protected from the atmosphere.
==Applications in organic synthesis==
Aluminium iodide is employed to break certain kinds of C-O and N-O bonds. It cleaves aryl ethers and deoxygenates epoxides.[2]
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 composition AlI is unstable at room temperature with respect to the triiodide[3]
:6 AlI → Al2I6 + 4 Al
An illustrative derivative of aluminium monoiodide is the cyclic adduct formed with triethylamine, AI4I4(NEt3)4.
Hydrolysis aluminium triiodide will release some HI, which is corrosive. Lewis acids are skin irritants.
1. G. W. Watt, J. L. Hall "Aluminum Iodide" Inorganic Syntheses, 1953, Volume IV, pages 117-119
2. M. Gugelchuk "Aluminum Iodide" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. DOI: 10.1002/047084289.
3. “Aluminum(I) and Gallium(I) Compounds: Syntheses, Structures, and Reactions” Dohmeier, C.; Loos, D.; Schnöckel, H. Angewandte Chemie International Edition in English (1996) Volume 35, Pages 129 - 149.
| Aluminum iodide | |
|---|---|
 Aluminium iodide | |
| General | |
| Other names | Aluminium(III) iodide Aluminum triiodide |
| Molecular formula | AlI3 |
| Molar mass | 407.695 |
| Appearance | colorless powder but impure samples are often brown |
| CAS number | [7784-23-8] |
| Properties | |
| Density and phase | 3.98 g/cm3, solid |
| Solubility | decomposes in water, alcohols soluble in carbon disulfide |
| Melting point | 191 °C |
| Boiling point | 360 °C |
| Vapour Pressure | 1 mm at 178 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
'Aluminium iodide' is any chemical compound containing only aluminium and iodine. Invariably, the name refers to a compound of the composition AlI3, formed by the reaction of aluminium and iodine[1] or the action of HI on Al metal. As for the related chloride and bromide, AlI3 is a strong Lewis acid and should be protected from the atmosphere.
==Applications in organic synthesis==
Aluminium iodide is employed to break certain kinds of C-O and N-O bonds. It cleaves aryl ethers and deoxygenates epoxides.[2]
| Contents |
| Aluminium(I) iodide |
| Safety |
| References |
| External links |
Aluminium(I) iodide
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 composition AlI is unstable at room temperature with respect to the triiodide[3]
:6 AlI → Al2I6 + 4 Al
An illustrative derivative of aluminium monoiodide is the cyclic adduct formed with triethylamine, AI4I4(NEt3)4.
Safety
Hydrolysis aluminium triiodide will release some HI, which is corrosive. Lewis acids are skin irritants.
References
1. G. W. Watt, J. L. Hall "Aluminum Iodide" Inorganic Syntheses, 1953, Volume IV, pages 117-119
2. M. Gugelchuk "Aluminum Iodide" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. DOI: 10.1002/047084289.
3. “Aluminum(I) and Gallium(I) Compounds: Syntheses, Structures, and Reactions” Dohmeier, C.; Loos, D.; Schnöckel, H. Angewandte Chemie International Edition in English (1996) Volume 35, Pages 129 - 149.
External links
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