Octatetraynyl radical

Octatetraynyl radical
Identifiers
ChemSpider	10809239 Y
Jmol-3D images	Image 1
SMILES [C]#CC#CC#CC#C
InChI InChI=1S/C8H/c1-3-5-7-8-6-4-2/h1H Y Key: GTEOCQSGHJLKQX-UHFFFAOYSA-N Y
Properties
Molecular formula	C8H
Molar mass	97.09 g mol−1
Exact mass	97.007825032 g mol-1
Y radical (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Octatetraynyl radical (C₈H) is an organic free radical with eight carbon atoms linked in a chain with alternating single bonds and triple bonds.

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

1. ^ Remijan, Anthony J.; J. M. Hollis, F. J. Lovas, M. A. Cordiner, T. J. Millar, A. J. Markwick-Kemper, and P. R. Jewell (July 20 2007). "Detection of C₈H^- and Comparison with C₈H toward IRC +10 216" (abstract). The Astrophysical Journal 664 (1): L47–L50. Bibcode 2007ApJ...664L..47R. doi:10.1086/520704. http://www.journals.uchicago.edu/doi/abs/10.1086/520704. Retrieved 2007-07-24. 
2. ^ Brünken, S.; H. Gupta, C. A. Gottlieb, M. C. McCarthy, and P. Thaddeus (July 20 2007). "Detection of the Carbon Chain Negative Ion C₈H^- in TMC-1" (abstract). The Astrophysical Journal 664 (1): L43–L46. Bibcode 2007ApJ...664L..43B. doi:10.1086/520703. http://www.journals.uchicago.edu/doi/abs/10.1086/520703. Retrieved 2007-07-24.