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基质隔离傅里叶红外光谱研究臭氧与乙烯的反应机制

邓建国 陈建华 刘红杰 王玮 王轩

邓建国, 陈建华, 刘红杰, 王玮, 王轩. 基质隔离傅里叶红外光谱研究臭氧与乙烯的反应机制[J]. 环境科学研究, 2012, 25(1): 1-9.
引用本文: 邓建国, 陈建华, 刘红杰, 王玮, 王轩. 基质隔离傅里叶红外光谱研究臭氧与乙烯的反应机制[J]. 环境科学研究, 2012, 25(1): 1-9.
DENG Jian-guo, CHEN Jian-hua, LIU Hong-jie, WANG Wei, WANG Xuan. Matrix Isolation FT-IR Study on the Reaction Mechanisms between Ozone and Ethene[J]. Research of Environmental Sciences, 2012, 25(1): 1-9.
Citation: DENG Jian-guo, CHEN Jian-hua, LIU Hong-jie, WANG Wei, WANG Xuan. Matrix Isolation FT-IR Study on the Reaction Mechanisms between Ozone and Ethene[J]. Research of Environmental Sciences, 2012, 25(1): 1-9.

基质隔离傅里叶红外光谱研究臭氧与乙烯的反应机制

基金项目: 国家自然科学基金项目(40775075);国家环境保护公益性行业科研专项(200809052);环境模拟与污染控制国家重点联合实验室专项(11K03ESPCP)

Matrix Isolation FT-IR Study on the Reaction Mechanisms between Ozone and Ethene

  • 摘要: 用自行组建的低温基质隔离系统结合量子化学计算研究了乙烯与臭氧的反应机制,在试验中应用程序升温方法以检测、识别反应活性中间体.结果表明:试验中经红外吸收光谱识别为乙烯与臭氧反应中间体——POZ(初级臭氧化物)和SOZ(次级臭氧化物)的吸收峰均与文献报道的吸收峰完全吻合;在峰位和吸收强度上,试验测得的POZ和SOZ的大部分吸收峰均与B3LYP/6-311++G(2d,2p)计算的振动频率相一致,表明采用程序升温方法,将基质温度升到更高(200 K),不仅可检测到乙烯与臭氧反应的2个重要中间体——POZ和SOZ,更重要的是还清楚地显示了POZ生成、175 K时裂解和SOZ生成的整个反应历程,有力地支持了Criegee反应机制,证明基质隔离技术结合程序升温是一种研究烯烃与臭氧反应机制的可行方法.

     

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  • 刊出日期:  2012-01-25

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