Diiodobutadiyne
From Wikipedia, the free encyclopedia
| Names | |
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| IUPAC name
1,4-Diiodobuta-1,3-diyne | |
| Other names
Diiododiacetylene | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| C4I2 | |
| Molar mass | 301.853 g·mol−1 |
| Appearance | White solid |
| Solubility in hexanes | Soluble |
| Structure | |
| Linear | |
| Explosive data | |
| Shock sensitivity | Sensitive - may explode if struck |
| Related compounds | |
Related compounds |
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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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Diiodobutadiyne (1,4-diiodobuta-1,3-diyne) is an organoiodine compound with the chemical formula C4I2. Its structure is I−C≡C−C≡C−I. It is a white solid. It is used in the creation of the polymer poly(diiododiacetylene) (PIDA) by undergoing 1,4 polymerization. It is a small linear molecule related to diacetylene, where the hydrogens of diacetylene is replaced by iodine.[1]
Diiodobutadiyne is light sensitive and explosive if stored out of solution as a dry solid. It will undergo random 1,2 and 1,4 polymerization, as well as decomposition in solution if kept over an extended period of time, having a half-life of just about two weeks.[2]

