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Near-Ultraviolet Absorption Spectrum of Vinoxy Radical（CH2CHO）by Cavity Ringdown Spectroscopy
Wang Liming,Zhang Jingsong*
Author NameAffiliationE-mail
Wang Liming Department of Chemistry，University of California，Riverside，CA 92521，U. S. A.  
Zhang Jingsong* Department of Chemistry，University of California，Riverside，CA 92521，U. S. A. jingsong.zhang@ucr.edu 
Abstract:
Near-ultraviolet absorption spectrum of the B 2A" 0 ← X 2A" band of the vinoxy radical（CH2CHO）is recorded by cavity ringdown spectroscopy（CRDS）. The absorption spectrum shows a series of vibronic bands starting from 28786 cm - 1 and an increasing broad background towards higher photon energy. The CRDS absorption spectrum is similar to an early low-resolution absorption spectrum；and the vibronic peak positions match well with those in the laser-induced fluorescence and photofragment yield spectra.
Key words:  Cavity ringdown spectroscopy,Vinoxy radical,Near-Ultraviolet absorption spectrum
FundProject:
利用激光腔内共振衰减技术研究CH2CHO自由基的近紫外吸收光谱
王黎明,张劲松*
摘要:
利用激光腔内共振衰减技术（CRDS），获取了CH2CHO自由基的近紫外吸收光谱. 在此吸收光谱中，有一从28786 cm-1起始的振动-电子带，和一随能量而增加的宽吸收背景. 此CRDS 吸收光谱和以前的低分辨吸收光谱相一致；其振动-电子吸收峰位置和在激光诱导荧光光谱及光解产物谱中的峰位置相吻合.
关键词:  利用激光腔内共振衰减技术  CH2CHO 自由基  近紫外吸收光谱
DOI：10.1088/1674-0068/17/3/357-361
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