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| Names | |
|---|---|
| Preferred IUPAC name Octa-1,3,5,7-tetrayn-1-yl | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider |
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| Properties | |
| C8H | |
| Molar mass | 97.096 g·mol−1 |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Octatetraynyl radical (C8H) is anorganicfree radical with eightcarbon atoms linked in alinear chain with alternatingsingle bonds andtriple bonds (H−C≡C−C≡C−C≡C−C≡C•).
In 2007 negatively charged octatetraynyl was detected in Galactic molecular sourceTMC-1, making it the second type ofanion to be found in theinterstellar medium (afterhexatriynyl radical) and the largest such molecule detected to date.[1][2]
