化学学报 ›› 2010, Vol. 68 ›› Issue (11): 1093-1097. 上一篇    下一篇

研究论文

活性氮与溴分子反应的实验研究

唐晓闩*,1,付鹏1,陈远奎1,王鸿梅2,储焰南2   

  1. (1安徽师范大学物理与电子信息学院 芜湖 241000)
    (2中国科学院安徽光学精密机械研究所环境光谱学研究室 合肥 230031)
  • 收稿日期:2009-05-28 修回日期:2010-01-13 出版日期:2010-06-14 发布日期:2010-01-25
  • 通讯作者: 唐晓闩 E-mail:x58929@mail.ahnu.edu.cn
  • 基金资助:

    国家自然科学基金(NO.20703001)

Experimental Study on the Reaction between Active Nitrogen with Bromine

Tang Xiaoshuan*,1 Fu Peng1 Chen Yuankui1 Wang Hongmei2 Chu Yannan2   

  1. (1 College of Physics and Electronic Information, Anhui Normal University, Wuhu 241000)
    (2 Laboratory of Environment Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031)
  • Received:2009-05-28 Revised:2010-01-13 Online:2010-06-14 Published:2010-01-25
  • Contact: TANG Xiao-Shuan E-mail:x58929@mail.ahnu.edu.cn

在流动反应管中, 利用高纯N2空心阴极放电制备活性氮, 研究了活性氮与溴分子碰撞反应得到的发射光谱. 在540~800 nm波段观察到了较强的NBr(b1Σ→X3Σ)跃迁发射谱, 在292 nm处观察到了Br2(D'→A')辐射跃迁. 实验结果表明, 得到的NBr(b1Σ)显示出了非弛豫的发射特征, 最高振动能级为ν'=9. 激发态的NBr(b1Σ)是由活性氮中的N(2P)原子与Br2直接反应生成的.

关键词: 发射光谱, 活性氮, NBr

Active nitrogen has been prepared by hollow-cathode discharge of high pure nitrogen in a flow reactor, and the emission spectra obtained in the reaction of active nitrogen with Br2 have been studied. The strong emission spectra of NBr(b1Σ→X3Σ) in the range of 540~800 nm have been observed when bromine is added to a stream of active nitrogen, and the spectra around 292 nm is ascribed to the transition of Br2(D'→A'). The results show that the excited state NBr(b1Σ) are found to exhibit vibrationally unrelaxed emissions (from up to ν'=9), and the electronically excited NBr(b1Σ) is formed directly by the reaction of excited nitrogen atom N(2P) with Br2.

Key words: emission spectra, active nitrogen, NBr

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