Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Spectroscopic Evidence of Jet-Cooled p-Chloro-α-Methylbenzyl Radical in Corona Excitation

  • Huh, Chang-Soon (Department of Chemistry and The Chemistry Institute of Functional Materials, Pusan National University) ;
  • Yoon, Young-Wook (Department of Chemistry and The Chemistry Institute of Functional Materials, Pusan National University) ;
  • Lee, Sang-Kuk (Department of Chemistry and The Chemistry Institute of Functional Materials, Pusan National University)
  • Received : 2012.04.20
  • Accepted : 2012.06.08
  • Published : 2012.09.20
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Abstract

We report the first spectroscopic evidence of the jet-cooled p-chloro-${\alpha}$-methylbenzyl radical. The visible vibronic emission spectrum was recorded from the corona discharge of precursor p-chloro-ethylbenzene seeded in a large amount of inert carrier gas helium using a pinhole-type glass nozzle coupled with a technique of corona excited supersonic expansion. From the comparison with the vibronic spectrum of the p-chlorobenzyl radical, we identified the evidence of formation of the jet-cooled p-chloro-${\alpha}$-methylbenzyl radical in the corona discharge of precursor p-chloro-ethylbenzene.

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