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

Abstract

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

CLC Number:

O657.38

TrendMD:

WANG Miao-Miao, TANG Yong-Xin, ZHENG Qi-Ke. Quenching Effects of NO₂, H₂O and N₂ on the Iodine Fluorescence[J]. Chem. J. Chinese Universities, 1997, 18(10): 1700.

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

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