Chemistry:Octatetraynyl radical
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Short description: Organic radical (HC≡CC≡CC≡CC≡C•)
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| Preferred IUPAC name
Octa-1,3,5,7-tetrayn-1-yl | |
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3D model (JSmol)
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PubChem CID
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| Properties | |
| C8H | |
| Molar mass | 97.096 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 verify (what is   ?)
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Tracking categories (test):
Octatetraynyl radical (C
8H) is an organic free radical with eight carbon atoms linked in a linear chain with alternating single bonds and triple bonds (H–C≡C–C≡C–C≡C–C≡C•).
In 2007 negatively charged octatetraynyl was detected in Galactic molecular source TMC-1, making it the second type of anion to be found in the interstellar medium (after hexatriynyl radical) and the largest such molecule detected to date.[1][2]
References
- ↑ Remijan, Anthony J.; J. M. Hollis; F. J. Lovas; M. A. Cordiner; T. J. Millar; A. J. Markwick-Kemper; P. R. Jewell (July 20, 2007). "Detection of C8H− and Comparison with C8H toward IRC +10 216". The Astrophysical Journal 664 (1): L47–L50. doi:10.1086/520704. Bibcode: 2007ApJ...664L..47R.
- ↑ Brünken, S.; H. Gupta; C. A. Gottlieb; M. C. McCarthy; P. Thaddeus (July 20, 2007). "Detection of the Carbon Chain Negative Ion C8H− in TMC-1". The Astrophysical Journal 664 (1): L43–L46. doi:10.1086/520703. Bibcode: 2007ApJ...664L..43B.
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