THE PHOTOOXIDATION OF N,N-DIETHYLHYDROXYLAMINE BY ROSE-BENGAL IN ACETONITRILE AND WATER

被引：21

作者：

BILSKI, P

LI, ASW

CHIGNELL, CF

机构：

[1] National Institute of Environmental Health Sciences, Laboratory of Molecular Biophysics, North Carolina, 27709, PO Box 12233, Research Triangle Park

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 1991年 / 54卷 / 03期

关键词：

D O I：

10.1111/j.1751-1097.1991.tb02026.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The Rose Bengal photosensitized oxidation of N,N-diethylhydroxylamine has been investigated in water and acetonitrile using the techniques of oxygen uptake, singlet oxygen phosphorescence and electron spin resonance. In both solvents H2O2 is the major oxidation product and diethylnitroxide is an intermediate. In water, superoxide dismutase decreases oxygen uptake suggesting involvement of superoxide anions in the oxidation process. Results indicate that in water the photo-oxidation proceeds mainly by a Type I (electron transfer) mechanism, while in acetonitrile a Type II (energy transfer) mechanism has been confirmed (Encinas et al., 1987, J. Chem. Soc. Perkin Trans. II, 1125-1127).

引用

页码：345 / 352

页数：8

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