Study of hot bands in the B^2∑u^+ -X^2∑g^+ system of C2^- anion |
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作者姓名: | 喻姗姗 杨晓华 李本霞 KanikiKakule 吴升海 郭迎春 郭煜炎 陈扬骎 陈扬骎 |
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摘 要: | Optical heterodyne magnetic rotation enhanced velocity modulation spectroscopy was employed to observe the visible absorption spectra of the B^2∑u^ -X^2∑g^ electronic transition of C2^-. Four hot bands (0,1), (1,2), (2,3) and (3,4) have been observed and the band (3,4) is measured directly for the first time, so far as we know, by absorption. A rotational analysis was carried out to obtain molecular constants. With the Franck-Condon principle and the vibrational Boltzmann distribution, we have estimated the vibrational temperature of C2^- to be about 3000K.
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关 键 词: | 速度调制光谱 C2^- 二价碳离子 振动温度 负分子离子 光学外差磁旋转增强 热带 |
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