PHASE-SHIFT STUDIES OF THE QUENCHING OF NH(C1-PI) AND NH(A3-PI) BY HYDROCARBONS

被引:8
作者
SASAKI, S
KANO, A
TSUNASHIMA, S
SATO, S
机构
[1] TOKYO INST TECHNOL, DEPT APPL PHYS, MEGURO KU, TOKYO 152, JAPAN
[2] TOKYO INST TECHNOL, NUCL REACT RES LAB, MEGURO KU, TOKYO 152, JAPAN
关键词
Quenching; -; Photolysis; Hydrocarbons;
D O I
10.1246/bcsj.59.1675
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The cross-sections for quenching NH(c1II) and NH(A3II) by hydrocarbons were determined at room temperature by using a phase-shift method. The NH(c1II) was produced by the photolysis of HN3 using an amplitude-modulated Xe-resonance lamp. The apparent decay rate of the NH(c1II) was estimated from the difference in phase angle between the excitation light and the fluorescence of NH(c1II) at 325 nm. In the presence of Xe, the fluorescence of NH(A3II) at 336 nm was enhanced. The difference in the phase angle between the fluorescences at 325 and 336 nm was found to correlate with the decay rate of NH(A3II). From the decay rates obtained in the presence of hydrocarbons, the quenching cross-sections were determined. © 1986 The Chemical Society of Japan.
引用
收藏
页码:1675 / 1681
页数:7
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