| CO+分子离子彗尾带系在近红外区域的光谱研究 |
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| 引用本文： | 李伟,杨晓华,甘雨洁,吴玲,郭迎春,刘煜炎,陈扬骎.CO+分子离子彗尾带系在近红外区域的光谱研究[J].光谱学与光谱分析,2005,25(8):1250-1252. |
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| 作者姓名： | 李伟 杨晓华 甘雨洁 吴玲 郭迎春 刘煜炎 陈扬骎 |
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| 作者单位： | 华东师范大学物理系,光谱学与波谱学教育部重点实验室,上海,200062;波谱与原子分子物理国家重点实验室,中国科学院武汉物理与数学研究所,湖北,武汉,430071 |
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| 基金项目： | 国家自然科学基金（10174020和10204007）和上海市重点学科资助项目 |
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| 摘 要： | CO 分子离子是一种重要的瞬态自由基分子,许多研究者对该带系进行了大量的研究。文章采用光外差-磁旋转-速度调制光谱技术测量了12C16O 分子离子彗尾带系(A2Πi-X2Σ )在近红外区域的3个支带(0,3),(1,4)和(3,6)的振转吸收光谱。利用最小二乘法拟合,得到了上态A2Πi(ν′=0,1,3)的精确的分子常数。进一步验证了光外差-磁旋转-速度调制光谱技术在吸收光谱测量中的优越性。
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| 关 键 词： | CO+离子 彗尾带系 近红外 分子常数 |
| 文章编号： | 1000-0593（2005）08-1250-03 |
| 收稿时间： | 2004-03-16 |
| 修稿时间： | 2004-07-31 |
Study on the Comet-Tail System of 12C16O+ in the Near-Infrared Region |
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| LI Wei,YANG Xiao-hua,GAN Yu-jie,WU Ling,GUO Ying-chun,LIU Yu-yan,CHEN Yang-qin.Study on the Comet-Tail System of 12C16O+ in the Near-Infrared Region[J].Spectroscopy and Spectral Analysis,2005,25(8):1250-1252. |
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| Authors: | LI Wei YANG Xiao-hua GAN Yu-jie WU Ling GUO Ying-chun LIU Yu-yan CHEN Yang-qin |
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| Institution: | Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China |
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| Abstract: | The molecular cation CO+ is a very important transient molecular radical, and the spectra of the ion has been investigated by numerous researchers. Optical-heterodyne-magnetic-rotation-enhanced velocity modulation spectroscopy(OH-MR-VMS) was employed to measure the comet-tail system (A2 pi(i)-X2 sigma+) of 12C16O+ molecular ion. The vibrationalrotation absorption spectra wereobserved in the near-infrared region, including three bands of (0, 3), (1, 4) and (3, 6). A set of precise molecular constants for the A2 pi(i) (v' = 0, 1, 3) were determined using the least-squares fit. This experiment has further proved that OH-MR-VMS is very valuable in measuring absorption spectra of molecular ions. |
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| Keywords: | CO ion Comet-tail system Near-infrared Molecular constants |
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