| 丁酮分子的共振增强多光子电离解离研究 |
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| 引用本文： | 夏柱红,魏杰,李子尧,郑海洋,章莲蒂,顾学军,张冰.丁酮分子的共振增强多光子电离解离研究[J].化学学报,2001,59(1):124-128. |
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| 作者姓名： | 夏柱红 魏杰 李子尧 郑海洋 章莲蒂 顾学军 张冰 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所.合肥(230031);中国科学院激光光谱学开 放实验室 |
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| 摘 要： | 利用可调谐染料激光研究了丁酮分子的共振增强多光子电离解离过程，发现在428～448nm激光波段丁酮分子发生的是经4p和4dRydberg态的(3+1)多光子过程。此外，我们还用“梯开关”模型对丁酮母体离子的解离机理和各碎片来源作了详细的分析，分析认为在丁酮母体离子的解离过程中存在H原子重排与电荷的重新分布现象。
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| 关 键 词： | 丁酮 光电离 里德堡态 飞行时间质谱法 |
| 修稿时间： | 2000年1月18日 |
Study on resonance enhanced multiphoton ionization and fragmentation of 2-butanone |
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| Xia Zhuhong,Wei Jie,Li Ziyao,Zheng Haiyang,Zhang Liandi,Gu Xuejun,Zhang Bing.Study on resonance enhanced multiphoton ionization and fragmentation of 2-butanone[J].Acta Chimica Sinica,2001,59(1):124-128. |
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| Authors: | Xia Zhuhong Wei Jie Li Ziyao Zheng Haiyang Zhang Liandi Gu Xuejun Zhang Bing |
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| Institution: | Anhui Inst Opt & Fine Mech, Acad Sinica.Hefei(230031) |
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| Abstract: | Resonance Enhanced Multiphoton Ionization 9REMPI) dissociation process of 2-butanone was studied using a tunable dye laser. it was found that in the wavelength range of 428～448nm(3+1) multiphoton ionization process via 4p and 4d Rydberg state occured. In addition, the dissociation mechanism of 2-butanone parent ion and the source of fragmental ions were investigated in detail with "ladder switching" model, and the hydrogen rearrangement and redistribution of change were found during the dissociation process of 2-butanone parent ion. |
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| Keywords: | REMPI 2-butanone rydberg state "ladder switching" model |
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