Diiodoacetylene
Chemical compound
From Wikipedia, the free encyclopedia
Diiodoacetylene is the organoiodine compound with the formula C2I2. It is a white, volatile solid that dissolves in organic solvents. It is prepared by iodination of trimethylsilylacetylene.[1] Although samples explode above 80 °C, diiodoacetylene is the most readily handled of the dihaloacetylenes. Dichloroacetylene, for example, is more volatile and more explosive.[2] As confirmed by X-ray crystallography, diiodoacetylene is linear,[3] with the structure I−C≡C−I. It is however a shock-, heat-, and friction-sensitive compound. Like other haloalkynes, diiodoacetylene is a strong halogen bond donor.[4]
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| Names | |
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| Preferred IUPAC name
Diiodoethyne | |
| Identifiers | |
3D model (JSmol) |
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CompTox Dashboard (EPA) |
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| Properties | |
| C2I2 | |
| Molar mass | 277.831 g·mol−1 |
| Appearance | white solid |
| Density | 3.43 g/cm3 |
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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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