Rearrangement of Benzyl-type Radical in Corona Discharge of 2,6-Dichlorotoluene

Bulletin of the Korean chemical society

Seung Woon Lee¹  Sang Kuk Lee¹  Young Wook Yoon¹ 

关键词: Molecular rearrangement;    Corona discharge;    Chlorobenzyl radical;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Using a pinhole-type glass nozzle equipped for a corona-excited supersonic expansion (CESE), precursor 2,6-dichlorotoluene seeded in a large amount of inert carrier gas helium was discharged to produce jet-cooled but electronically excited benzyl-type radicals. The visible vibronic emission spectrum was recorded with a long-path monochromator to observe vibronic bands in the D₁ �? D₀ electronic transition of benzyl-type radicals. The spectral analysis revealed the generation of not only the 2,6-dichlorobenzyl radical as a typical product, but also the o-chlorobenzyl radical as an unexpected species, which indicates the possible molecular rearrangement in eliminating a chlorine atom from the benzene ring. A possible mechanism is proposed for the formation of the o-chlorobenzyl radical from the precurs or in the gas phase.

【 授权许可】

Unknown