Matrix-isolation FTIR spectroscopy of the 1-butyn-3-yl radical
McCunn, Laura R.
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1240827.pptx
3381.pdf
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https://hdl.handle.net/2142/100739
Description
Title
Matrix-isolation FTIR spectroscopy of the 1-butyn-3-yl radical
Author(s)
McCunn, Laura R.
Contributor(s)
Ellis, Martha
Brown, Glenna J.
Issue Date
2018-06-18
Keyword(s)
Radicals
Date of Ingest
2018-08-17T16:09:38Z
2018-12-12T22:38:37Z
Abstract
The 1-butyn-3-yl radical (C4H5) is thought to play a role in the formation of hydrocarbons in the interstellar medium and planetary atmospheres, but it is not well characterized. In this study, the 1-butyn-3-yl radical was formed by the pyrolysis of gas-phase 3-bromo-1-butyne at temperatures of 800-1200 K. Nascent radicals were isolated in an argon marix, followed by FTIR spectroscopy. Vibrational bands in the experimental spectra were matched to frequencies predicted by Gaussian 09. Pyrolysis of 3-methyl-1-butyne was also investigated as a possible pyrolytic precursor to the 1-butyn-3-yl radical under similar conditions. Evidence of 1-butyn-3-yl formation was observed, but other radicals may have formed as well.
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1240827.pptx
3381.pdf
