引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1802次   下载 1355 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Ion-Pair Photodissociation of Trichloromonofluoromethane
Liu-li Chen1, Shan-xi Tian*1, Yun-feng Xu1, Gen-bai Chu2, Fu-yi Liu2, Xiao-bin Shan2, Liu-si Sheng2
1.Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;2.National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
Abstract:
Anionic fragments, F- and Cl- including two isotope species 35Cl- and 37Cl-, are ob-served in the photoexcitations of CFCl3. The ion-pair anion e±ciency spectra of 35Cl- and 37Cl- are recorded in the photon energy range of 7.75~22.00 eV. The threshold of ion-pair dissociation CFCl3→CFCl2++Cl- is experimentally determined to be 7.94±0.04 eV. With the references of the high-resolution photoabsorption spectra reported in the literatures, we make tentative assignments of the electron valence-to-Rydberg transitions. Furthermore, the multibody ion-pair fragmentation processes to Cl- are discussed by comparison between the calculated thermochemical thresholds and the experimental efficiency spectrum.
Key words:  Trichloromonofluoromethane, Ion-pair dissociation, Rydberg state, Ion-pair anion efficiency spectrum, Time-of-flight mass spectrometer
FundProject:
三氯一氟甲烷分子的正负离子对光解离动力学
陈刘利1, 田善喜*1, 徐云峰1, 储根柏2, 刘付轶2, 单晓斌2, 盛六四2
1.中国科学技术大学合肥微尺度物质科学国家实验室,合肥230026;2.中国科学技术大学国家同步辐射实验室,合肥230029
摘要:
在CFCl3分子的同步辐射光激发正负离子解离过程中,利用负离子飞行时间质谱技术观测到了F-和Cl-(包括35Cl-37Cl-),测量得到了35Cl-37Cl-在7.75~22.00 eV的负离子产额效率谱. 实验得到CFCl3→CFCl
关键词:  三氯一氟甲烷,离子对解离,里德堡态,负离子效率谱,飞行时间质谱
DOI:10.1088/1674-0068/24/03/261-266
分类号: