1,2-Diiodoethane
Chemical compound
From Wikipedia, the free encyclopedia
1,2-Diiodoethane is an organoiodine compound.[1]
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| Names | |||
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| Preferred IUPAC name
1,2-Diiodoethane | |||
| Other names
Ethylene iodide | |||
| Identifiers | |||
3D model (JSmol) |
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| ChemSpider | |||
| ECHA InfoCard | 100.009.872 | ||
PubChem CID |
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| UNII | |||
CompTox Dashboard (EPA) |
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| Properties | |||
| C2H4I2 | |||
| Molar mass | 281.863 g·molâ1 | ||
| Density | 2.13 g/cm3 | ||
| Melting point | 80 to 82 °C (176 to 180 °F; 353 to 355 K) | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation and reactions
1,2-Diiodoethane can be prepared by the reaction of ethylene with iodine (I2):[2]
- C2H4 + I2 â C2H4I2
1,2-Diiodoethane is most commonly used in organic synthesis in the preparation of samarium(II) iodide or ytterbium(II) iodide in an inert solvent such as THF.[3]
- Sm + ICH2CH2I â SmI2 + H2C=CH2
Spectral properties
In mass spectroscopy, 1,2-diiodoethane exhibits 5 major peaks, with the base peak showing at 155 m/z, which is the loss of one iodine atom (127 m/z).