Advanced Search
Wu Ling, Zheng Lijuan, Guo Yingchun, Xu Chunyan, Yang Xiaohua, Liu Yuyan, Chen Yangqin. Application of the Zeeman Effect to the Spectral Assignment of Cl2+ Including Its Isotopics[J]. Chinese Journal of Chemical Physics , 2005, 18(6): 883-886. DOI: 10.1088/1674-0068/18/6/883-886
Citation: Wu Ling, Zheng Lijuan, Guo Yingchun, Xu Chunyan, Yang Xiaohua, Liu Yuyan, Chen Yangqin. Application of the Zeeman Effect to the Spectral Assignment of Cl2+ Including Its Isotopics[J]. Chinese Journal of Chemical Physics , 2005, 18(6): 883-886. DOI: 10.1088/1674-0068/18/6/883-886

Application of the Zeeman Effect to the Spectral Assignment of Cl2+ Including Its Isotopics

Funds: Project supported by the National Natural Science Foundation of China (10204007 and 10434060) and Science and Technology Commission of Shanghai Municipality (04DZ14009).
More Information
  • Received Date: November 02, 2004
  • The A2Πu-X2Πg electronic absorption spectrum of the Cl2+ molecular cation in the region between 16820 and 17350 cm-1 was observed by employing optical heterodyne magnetic rotation enhanced velocity modulation spectroscopy. Cl2+ is a paramagnetic molecule; however, the intensities of some spectral lines, belonging to three bands whose origins are near 17282, 17324 and 16913 cm-1, respectively, remain unchanged with in the magnetic field. This indicates that both the upper and lower states have a weak Zeeman effect. The Zeeman contribution is nearly zero for the 2Π1/2 state, while nonvanishing for the 2Π3/2 state. Therefore, this behavior for the spectral assignment of Cl2+, including its isotopics was utilized and the identity of these bands was confirmed as members of the Ω=1/2 component of the electronic transition conveniently and unambiguously. The assigned bands are the (3, 7) band of the Ω=1/2 component of 35Cl+2 and 35Cl37Cl+ and the (2, 7) band of the Ω=1/2 component of 35Cl2+. It extends the range of vibrational assignments considerably in both the ground and the excited state, and leads to the successful rotational analysis. New molecular constants of Cl2+ were obtained from the observed line positions, band by band, using a weighted leastsquares fitting procedure.

Catalog

    Article Metrics

    Article views (1459) PDF downloads (1593) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return