| 332—362nm范围内CF2Cl自由基的共振增强多光子电离研究 |
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| 引用本文： | 李全新,束继年,张 群,徐海峰,俞书勤,陈从香,马兴孝.332—362nm范围内CF2Cl自由基的共振增强多光子电离研究[J].物理学报,1998,47(9):1470-1476. |
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| 作者姓名： | 李全新 束继年 张 群 徐海峰 俞书勤 陈从香 马兴孝 |
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| 作者单位： | 中国科学技术大学化学物理系，合肥 230026 |
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| 基金项目： | 国家自然科学基金(批准号：29603008)资助的课题. |
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| 摘 要： | 用CF2Cl2分子直流脉冲放电的方法产生CF2Cl自由基，结合共振增强多光子电离(REMPI)技术，测量了332—362nm波长范围内CF2Cl自由基的(2+1)REMPI光谱，分析并标识了4s Rydberg态带源位于(ν0—0=55371cm-1)，两个被激活振动模ω′3(CF2剪式振动模)和ω4′(OPL
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| 关 键 词： | 共振增强 自由基 激光 多光子电离 CF2Cl |
| 收稿时间： | 3/6/1998 12:00:00 AM |
RESONANCE ENHANCED MULTIPHOTON INOIZATION STUDIES OF CF2Cl RADICALS BETWEEN 332nm AND 362nm |
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| LI QUAN-XIN,SHU JI-NIAN,ZHANG QUN,XU HAI-FENG,YU SHU-QIN,CHEN CONG-XIANG and MA XING-XIAO.RESONANCE ENHANCED MULTIPHOTON INOIZATION STUDIES OF CF2Cl RADICALS BETWEEN 332nm AND 362nm[J].Acta Physica Sinica,1998,47(9):1470-1476. |
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| Authors: | LI QUAN-XIN SHU JI-NIAN ZHANG QUN XU HAI-FENG YU SHU-QIN CHEN CONG-XIANG and MA XING-XIAO |
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| Abstract: | The (2+1) resonance-enhanced multiphoton ionization (REMPI) spectra of the CF2Cl radicals, which are generated by a pulsed dc discharge,were investigated between 332 and 362nm.Two new Rydberg states,4s and 4p,were observed and indentified.The observed states and spectroscopic constants include 4s Rydberg state (band origin ν0—0=55371cm-1,ω3′ (CF2 scissors)=523±7cm-1,ω′4 (OPLA,i.e.,out-of-plane bending mode)=734±4cm-1) and 4p Rydberg state (ν0—0=57601.3cm-1,ω3′=552±10cm-1,ω4′=762±12cm-1).The quantum defect values of 4s and 4p Rydberg states were also estimated.It seems that the radical production by a pulsed dc discharge combined with PEMPI technique is a powerful tool to study the electronic state of radicals. |
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