Dissociation of methanol in intense femtosecond laser field
文献类型：期刊论文
| 作者 | Tang, XP; Gao, LR; Wang, YL; Wang, C; Wang, SF; Kong, FA |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2002-12-01 |
| 卷号 | 47期号:23页码:1973-1978 |
| 关键词 | Intense Laser Field Femtosecond Laser Dissociation Methanol Tof-mass Spectra |
| ISSN号 | 1001-6538 |
| 英文摘要 | Methanol was irradiated by 80 fs laser pulse, intensity range of 10(13)-10(1)4 W/cm(2). A TOF-mass spectrometer was coupled to the laser system and used to detect the ions produced. The parent ions CH3OH+ appeared firstly at the laser intensity of 1.4 X 10(13) W/cm(2). While the laser intensity was,,gradually increased, the parent ions were dissociated and the primary ions CH2OH+ were given as verified from the irradiation of deuterated methanol (CH3OD)) showing the C-H bond cracking firstly. While the laser intensity was further. increased to 2.0 X 10(13) W/cm(2), the C-O bonds of the parent ions also broke to give CH3+. When the laser intensity was higher, smaller fragment ions like CH+, C+ OH+ and O+ also appeared. Among the fragment ions, only H+ ion yield had anisotropic angular distribution dependence on the laser polarization vector in the dissociation of methanol. All the experimental observations show that the dissociation of methanol proceeds through stepwise mechanism but not Coulomb explosion. |
| 语种 | 英语 |
| WOS记录号 | WOS:000179588600007 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/79315]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Kong, FA |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, XP,Gao, LR,Wang, YL,et al. Dissociation of methanol in intense femtosecond laser field[J]. CHINESE SCIENCE BULLETIN,2002,47(23):1973-1978. |
| APA | Tang, XP,Gao, LR,Wang, YL,Wang, C,Wang, SF,&Kong, FA.(2002).Dissociation of methanol in intense femtosecond laser field.CHINESE SCIENCE BULLETIN,47(23),1973-1978. |
| MLA | Tang, XP,et al."Dissociation of methanol in intense femtosecond laser field".CHINESE SCIENCE BULLETIN 47.23(2002):1973-1978. |
入库方式： OAI收割
来源：化学研究所
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