Photooxygenation of singlet oxygen traps upon excitation of molecular oxygen by dark red laser radiation in air-saturated solutions

被引：3

作者：

Krasnovsky, A. A. ^{[1
]}

Kryukov, I. V. ^{[1
]}

Sharkov, A. V. ^{[1
]}

机构：

[1] Russian Acad Sci, AN Bach Inst Biochem, Moscow 119071, Russia

来源：

SARATOV FALL MEETING 2006: OPTICAL TECHNOLOGIES IN BIOPHYSICS AND MEDICINE VIII | 2007年 / 6535卷

关键词：

singlet oxygen; photooxygenation; oxygen photochemistry; oxygen spectroscopy; photodynamic action;

D O I：

10.1117/12.741005

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The photooxygenation of tetracene and 1,3-diphenylisobenzofuran was shown to occur in air-saturated carbon tetrachloride upon laser irradiation at 765 rim. The action spectrum of the photoreaction is represented by the narrow band with the halfwidth <= 20 rim and the maximum at 765 nm. The data indicate that photoreaction is due to direct laser excitation of the (1)Sigma(+)(g)(nu=0) <- 3 Sigma(-)(g)(nu=0) transition in oxygen molecules. The molar absorption coefficient corresponding to the spectral maximum of this transition was estimated from the observed photoreaction rates.

引用

页数：5

共 20 条

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