Spectroscopic identification of jet-cooled 2,4-dichlorobenzyl radicals generated by corona discharge

被引：10

作者：

Yoon, Young Wook ^{[1
]}

Huh, Chang Soon ^{[1
]}

Lee, Sang Kuk ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Chem, Pusan 609735, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2012年 / 550卷

基金：

新加坡国家研究基金会;

关键词：

EXCITED SUPERSONIC EXPANSION; VIBRONIC EMISSION-SPECTRUM; LASER-INDUCED FLUORESCENCE; TRANSITION;

D O I：

10.1016/j.cplett.2012.08.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Vibronically excited but jet-cooled 2,4-dichlorobenzyl radical was generated from the precursor 2,4-dichlorotoluene using a pinhole-type glass nozzle designed for the dual purposes of corona discharge and supersonic jet expansion. From the analysis of the visible vibronic emission spectra of the jet-cooled 2,4-dichlorobenzyl radical observed, substituent effect of two Cl atoms on electronic transition energy was rationalized. In addition, we determined the electronic energy of the D-1 -> D-0 transition and vibrational mode frequencies in the D-0 state of the jet-cooled 2,4-dichlorobenzyl radical using the results of an ab initio calculation and known spectroscopic data of the precursor. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：58 / 61

页数：4

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