高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (10): 1700.

• 研究简报 • 上一篇    下一篇

NO2、H2O和N2对碘荧光的猝灭

王苗苗, 唐永新, 郑企克   

  1. 复旦大学激光化学研究所, 上海 200437
  • 收稿日期:1996-08-01 出版日期:1997-10-24 发布日期:1997-10-24
  • 通讯作者: 郑企克
  • 作者简介:王苗苗, 女, 22岁, 硕士研究生.

Quenching Effects of NO2, H2O and N2 on the Iodine Fluorescence

WANG Miao-Miao, TANG Yong-Xin, ZHENG Qi-Ke   

  1. Laser Chemistry Institute, Fudan University, Shanghai 200433
  • Received:1996-08-01 Online:1997-10-24 Published:1997-10-24

关键词: 碘荧光, 猝灭, 动态猝灭常数

Abstract: The quenching effects of N2, NO2 and H2Oon the laser-induced fluorescence of I2in a wide pressure range are reported. The quenching rates of N2, NO2 and H2Oare 6. 57 ×103Pa-1, 2. 58 × 10-2 Pa-1 and 1. 50 × 10-2 Pa-1, respectively. The results imply thatdipole-induced dipole interaction plays an important role in the quenching process, and thestatic quenching of NO2 on I2 fluorescence could be attributed to the metastable complexformation of I2 and NO2

Key words: Iodine fluorescence, Quenching, Kinetic quenching constant

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