REDUCTION OF DIOXYGEN TO SUPEROXIDE PHOTOSENSITIZED BY ANTHRAQUINONE-2-SULFONATE

被引：56
作者：
LANG, K
WAGNEROVA, DM
STOPKA, P
DAMERAU, W
机构：
[1] CZECHOSLOVAK ACAD SCI, INST INORGAN CHEM, CS-16000 PRAGUE 6, CZECHOSLOVAKIA
[2] CENT INST MOLEC BIOL, O-1115 BERLIN, GERMANY
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1992年 / 67卷 / 02期
关键词：
D O I：
10.1016/1010-6030(92)85228-M
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
When irradiated by UV light, solutions of anthraquinone-2-sulphonate in dimethyl sulphoxide containing dissolved oxygen are a source of a considerable amount of the superoxide anion O2-. In aqueous solutions at least 70% of OH* radicals observed after irradiation originate from primarily formed O2-. The superoxide formation is due to photo-initiated electron transfer from the sensitizer to dioxygen. The activity of various 9,10-anthraquinone derivatives as photosensitizers of superoxide production is correlated with the nature of the substituents.
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页码：187 / 195
页数：9
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