摘要
应用便携式拉曼光谱仪,采集了四种醛类分子(CnH2nO,n=1,2,3,4)的拉曼光谱,并通过量子化学中密度泛函理论(DFT)对四种醛类分子进行了分子模型构建和理论拉曼光谱模拟计算。通过实验拉曼光谱和DFT模拟计算结果的对比,对四种醛类分子的特征振动峰进行了指认。同时对四种醛类分子的实验光谱进行了分析比较。应用便携式拉曼光谱技术完全实现了对这几种醛类分子的现场快速鉴定和分析。
The Raman spectra of formaldehyde,acetaldehyde,propionaldehyde and n-butyraladehyde(CnH2nO,n=1,2,3,4)were obtained by portable Raman spectrometer.The molecules of the four aldehydes were calculated by density functional theory(DFT).By comparing the calculated result and the experimental result,the bands of these Raman spectra were assigned.Andthe Raman spectra of these aldehydes molecules were analyzed and compared.These aldehydes could be real-time rapidly identi-fied by Raman spectroscopy technology.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2011年第12期3277-3280,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(10274026)资助
关键词
甲醛
乙醛
丙醛
丁醛
拉曼光谱
Formaldehyde
Acetaldehyde
Propionaldehyde
n-butyraladehyde
Raman spectra
作者简介
董鹍,1981年生,昆明理工大学材料学博士研究生e-mail:dongkun3000@yahoo.com.cn
通讯联系人e-mail:pxzhang@hotmail.com