| 超声冷却SO2( 1A2— 1A1)激光诱导荧光激发谱的转动分析 |
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| 引用本文： | 王储记,陈 军,章,张立敏,戴静华,陈从香,马兴孝.超声冷却SO2( 1A2— 1A1)激光诱导荧光激发谱的转动分析[J].物理学报,1998,47(8):1258-1264. |
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| 作者姓名： | 王储记 陈 军 章 张立敏 戴静华 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： | 国家九五攀登计划“分子反应动态学和原子分子激发态”和国家自然科学基金(批准号：29773043)资助的课题. |
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| 摘 要： | 通过改变SO2/Ar配比，研究了超声膨胀冷却SO2( 1A2— 1A1)系统315—330nm波段振动分辨的激光诱导荧光(LIF)激发谱.获得了属于两个完整带系(1,m,1),(0,n,1)—(0,0,0)的高分辨转动结构谱.其中(ν′1,ν′2,ν′3)=(0,9,1),(0,10,1),(1,7,1),(1
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| 关 键 词： | 荧光激发谱 超声冷却 二氧化硫 转动分析 |
| 收稿时间： | 1997-11-03 |
ROTATIONAL ANALYSES OF LASER INDUCED FLUORESCENCE EXCITATION SPECTRA OF THE SUPERSONIC JET-COOLED SO2( 1A2— 1A1) SYSTEM |
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| WANG CHU-JI,CHEN JUN,ZHANG TAO,ZHANG LI-MIN,DAI JING-HUA,CHEN CONG-XIANG and MA XING-XIAO.ROTATIONAL ANALYSES OF LASER INDUCED FLUORESCENCE EXCITATION SPECTRA OF THE SUPERSONIC JET-COOLED SO2( 1A2— 1A1) SYSTEM[J].Acta Physica Sinica,1998,47(8):1258-1264. |
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| Authors: | WANG CHU-JI CHEN JUN ZHANG TAO ZHANG LI-MIN DAI JING-HUA CHEN CONG-XIANG and MA XING-XIAO |
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| Abstract: | The influence of the different gas ratios (SO2/Ar) on the vibronically resolved laser-induced fluorescence excitation spectra of the SO2( 1A2— 1A1) system was investigated under the supersonic jet conditions.High resolution spectra of two complete progressions (1,m,1),(0,n,1) were obtained,in which the rotational structures of the (0,9,1),(0,10,1),(1,7,1),(1,5,1)-(0,0,0) bands were observed,for the first time,so long as we know.The assignments of 847 rotationally resolved lines were based on an asymmetric top simulation,which results in the determination of the rotational and centrifugal distortion constants of each vibrational level of state.The approximate geometry parameters of state was derived to be r(S—O)=0.160nm,∠OSO=101.64°.In addition,a discussion on the inertial defect of each vibrational level of state was presented. |
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