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E-mail: sklee@pusan.ac.krReceived April 6, 2011, Accepted May 6, 2011The vibronically well-resolved emission spectrum was recorded from the corona discharge of precursor 2,3,4-trifluorotoluene in a corona excited supersonic expansion with a pinhole-type glass nozzle using a long-pathmonochromator in the visible region. From the analysis of the observed spectrum, we found the evidence of thepresence of the difluorobenzyl radicals in the corona discharge of the precursor. A possible mechanism isproposed for the formation of difluorobenzyl radicals in the gas phase on the basis of the observed emissionintensity of the difluorobenzyl radicals produced.Key Words : Spectroscopy, Difluorobenzyl radical, Reaction mechanismIntroductionTransient species such as molecular ions and radicals havelong been believed to play an important role as intermediatesin chemical reactions. |
