Vibronic Spectroscopy of Jet-Cooled Benzyl-type Radicals Produced from 2-Fluoro-4-Chlorotoluene by Corona Discharge

Bulletin of the Korean chemical society

Sang Youl Chae¹  Sang Kuk Lee¹  Young Wook Yoon¹ 

关键词: Spectroscopy;    Corona discharge;    2-Fluoro-4-chlorobenzyl radical;    Reaction mechanism;    Benzyl- type radical;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A home-made pinhole-type glass nozzle was employed to generate vibronically excited but jet-cooled benzyltype radicals from precursor 2-fluoro-4-chlorotoluene with a large amount of carrier gas He, from which the visible vibronic emission spectrum was recorded with a long-path monochromator. From an analysis of the spectrum observed, it was found that two benzyl-type radicals, 2-fluorobenzyl and 2-fluoro-4-chlorobenzyl radicals, were formed from the precursor in corona discharge. The possible pathway for the production of benzyl-type radicals that can explain the spectroscopic observation is herein proposed. In addition, the electronic energy of the D1 → D0 transition and the vibrational mode frequencies in the D0 state of the 2-fluoro- 4-chlorobenzyl radical were determined for the first time.

【 授权许可】

Unknown