| CN红带A^2Πi-X^2Σ^＋（6，1）和（7，2）带振转光谱研究 |
| |
| 引用本文： | 安丽琼,杨晓华,郭迎春,徐怡敏,许朝雄,陈扬骎,刘煜炎.CN红带A^2Πi-X^2Σ^＋（6，1）和（7，2）带振转光谱研究[J].光谱学与光谱分析,2005,25(1):65-68. |
| |
| 作者姓名： | 安丽琼 杨晓华 郭迎春 徐怡敏 许朝雄 陈扬骎 刘煜炎 |
| |
| 作者单位： | 华东师范大学物理系,华东师范大学光谱学与波谱学教育部重点实验室,上海200062 |
| |
| 基金项目： | 国家自然科学基金(10174020, 10204007)资助项目 |
| |
| 摘 要： | 通过微量CH3CN(36Pa)与He(660Pa)混合气体交流Penning辉光放电获得CN自由基分子，采用光外差-磁旋转-浓度调制光谱技术，在可见光波段16850～17480cm^-1进行了转动分辨光谱测量，分别标识了CN分子红带A^2Πi-X^2Σ^ (6，1)和(7，2)138条和118条的转动光谱(其余光谱为C2自由基及CN红带(8，3)带光谱)。理论拟合分子常数时考虑电子态间的微扰作用，采用有效哈密顿量矩阵对角化获得了A^2Πi(v=6，7)态更精确的分子常数及电子态A^2Πi(v=7)与X^2Σ^ (v=11)之间的微扰常数ξ，η，总体拟合方差均小于实验误差0．007cm^-1，表明拟合结果是非常精确的。
|
| 关 键 词： | 分子常数 电子态 微扰 光谱研究 对角化 哈密顿量 矩阵 CN 自由基 合方 |
| 文章编号： | 1000-0593(2005)01-0065-04 |
| 修稿时间： | 2003年3月28日 |
Investigation of the (6, 1) and (7, 2) bands in the A 2IIi-X 2sigma+ red system of CN radical] |
| |
| Li-Qiong An,Xiao-Hua Yang,Ying-Chun Guo,Yi-Min Xu,Chao-Xiong Xu,Yang-Qin Chen,Yu-Yan Liu.Investigation of the (6, 1) and (7, 2) bands in the A 2IIi-X 2sigma+ red system of CN radical][J].Spectroscopy and Spectral Analysis,2005,25(1):65-68. |
| |
| Authors: | Li-Qiong An Xiao-Hua Yang Ying-Chun Guo Yi-Min Xu Chao-Xiong Xu Yang-Qin Chen Yu-Yan Liu |
| |
| Institution: | Key Laboratory of Optical and Magnetic Resonance Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China. |
| |
| Abstract: | The CN radical was produced by Penning AC discharge of the mixture of trace acetonitrile (36 Pa) and helium (660 Pa) and the ro-vibrational spectra were measured by optical heterodyne magnetic rotation enhanced concentration modulation spectroscopy in the range of 16 850-17 480 cm(-1). 138 lines and 118 lines were assigned to the (6, 1) and (7, 2) bands in red system A 2IIi-X 2sigma+ of CN respectively, while others were due to (8, 3) band in CN red system and C2 Swan band system. More accurate molecular constants of A 2IIi (v = 6, 7) state and perturbation parameters zeta and eta between A and X states were derived based on nonlinear least-square fitting, individually, by diagonalizing the effective Hamiltonian matrix involving the perturbation elements of two electronical states and the standard deviation of fitting was less than the experimental uncertainty 0.007 cm(-1), which implied the accuracy of our results. |
| |
| Keywords: | CN radical Molecular constants Concentration modulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
