| 低温基质中asym—N2O4的红外光谱和紫外激光光解 |
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| 引用本文： | 丁飞 王雪峰. 低温基质中asym—N2O4的红外光谱和紫外激光光解[J]. 复旦学报(自然科学版), 1999, 38(1): 89-92 |
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| 作者姓名： | 丁飞 王雪峰 |
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| 作者单位： | 复旦大学激光化学研究所 |
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| 基金项目： | 国家攀登计划项目资助课题 |
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| 摘 要： | 在低温Ａｒ和Ｏ２基质隔离条件上分别测定了ａｓｙｍ－Ｎ２Ｏ４的红外光谱。利用量经学从计算，在ＭＰ２水平上以６－３１Ｇ＾＊和６－３１１Ｇ＾＊为基组，得到了ａｓｙｍ－Ｎ２Ｏ４的结构参数和振动频率，结合计算结果，对实验观察到的ａｓｙｍ－Ｎ２Ｏ４吸收峰进行了归属。采用３５５ｎｍ脉冲激光光解的方法，分别测定了在Ａｒ和Ｏ２基质中ａｓｙｍ－Ｎ２Ｏ４光解的产物，并对反应机理进行了讨论。
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| 关 键 词： | 低温基质 asym－N2O4 红外光谱 紫外激光光解 |
The FTIR Spectra and UV Laser Photolysis of asym N 2O 4 in Low Temperature Matrices |
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| Ding Fei,Wang Xuefeng,Qin Qizong. The FTIR Spectra and UV Laser Photolysis of asym N 2O 4 in Low Temperature Matrices[J]. Journal of Fudan University(Natural Science), 1999, 38(1): 89-92 |
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| Authors: | Ding Fei Wang Xuefeng Qin Qizong |
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| Affiliation: | Laser Chemistry Institute |
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| Abstract: | The FTIR spectra of asym N 2O 4(ONONO 2) have been measured in cryogenic matrices of Ar and O 2,respectively.The observed vibrational frequencies of asym N 2O 4 have been assigned with the help of obtained structure parameters and vibration frequencies of asym N 2O 4 from ab initio calculations at MP2/6 31G * and MP2/6 311G * levels.Asym N 2O 4 molecules isolated in both solid argon and oxygen are photodecomposed by 355 nm pulsed laser irradiation. The photolysis products are detected,the reaction mechanism is also discussed. |
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| Keywords: | cryogenic matrix isolation asym N 2O 4 FTIR spectra UV laser photolysis |
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