| 氯苯的同步辐射光电离研究 |
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| 引用本文： | 马靖,丁蕾,顾学军,郑海洋,方黎,张为俊,杨锐,王晶,齐飞. 氯苯的同步辐射光电离研究[J]. 化学物理学报, 2005, 18(6): 872-876 |
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| 作者姓名： | 马靖 丁蕾 顾学军 郑海洋 方黎 张为俊 杨锐 王晶 齐飞 |
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| 作者单位： | 中科院安徽光学精密机械研究所环境光谱学研究室 合肥230031(马靖，丁蕾，顾学军，郑海洋，方黎，张为俊)，中国科学技术大学国家同步辐射实验室 合肥230029(杨锐，王晶，齐飞) |
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| 基金项目： | ProjectsupportedbytheNationalKnowledgeInnovationProgramfromtheChineseAcademyofScience.(KJCX2SWH08) |
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| 摘 要： | 利用真空紫外同步辐射和反射式飞行时间质谱仪对氯苯进行了光电离研究,通过测量各离子的光电离效率(PIE)曲线,得到了氯苯的电离势为(9.11±0.05)eV及两种主要碎片离子C6H+5和C4H+3的出现势分别为(12.96±0.05)和(16.27±0.05)eV.结合有关文献的热力学数据,推导出C6H5Cl+、C6H+5及C4H+3的离子生成焓及一些键的解离能.实验获得了118.0nm同步辐射光电离下氯苯的质谱图.
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| 关 键 词： | 氯苯 真空紫外光电离 同步辐射 |
| 收稿时间： | 2004-12-27 |
Photoionization Studies of Chlorobenzene Using Synchrotron Radiation |
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| Ma Jing,Ding Lei,Gu Xuejun,Zheng Haiyang,Fang Li,Zhang Weijun,Yang Rui,Wang Jing and Qi Fei. Photoionization Studies of Chlorobenzene Using Synchrotron Radiation[J]. Chinese Journal of Chemical Physics, 2005, 18(6): 872-876 |
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| Authors: | Ma Jing Ding Lei Gu Xuejun Zheng Haiyang Fang Li Zhang Weijun Yang Rui Wang Jing Qi Fei |
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| Affiliation: | Ma Jing **,Ding Lei,Gu Xuejun,Zheng Haiyang,Fang Li,Zhang Weijun |
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| Abstract: | Photoionization studies of chlorobenzene were performed by using a time-of-flight mass spectrometer (TOF-MS) with vacuum ultraviolet (VUV) photons from the Heifei synchrotron radiation source. The photoionization mass spectrum and the photoionization efficiency (PIE) curves of both parent and fragment ions were measured. The appearance potentials of the major ions were obtained from their PIE curves. From these data, the standard formation enthalpies of C_ 6H_ 5Cl +, C_ 6H+_ 5 and C_ 4H+_ 3 were evaluated, some dissociative energy was derived. We will be able to detect chlorobenzen with SPI-TOFMS and 118.0 nm laser light. |
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| Keywords: | Chlorobenzene Photoio nizatiion Synchrotron radiation |
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