INTERACTION OF PORPHYRIN AND METALLOPORPHYRIN EXCITED-STATES WITH MOLECULAR-OXYGEN - ENERGY-TRANSFER VERSUS ELECTRON-TRANSFER QUENCHING MECHANISMS IN PHOTO OXIDATIONS

被引：67

作者：

COX, GS ^{[1
]}

WHITTEN, DG ^{[1
]}

GIANNOTTI, C ^{[1
]}

机构：

[1] CNRS,INST CHIM SUBST NAT,F-91190 GIF SUR YVETTE,FRANCE

来源：

CHEMICAL PHYSICS LETTERS | 1979年 / 67卷 / 2-3期

关键词：

D O I：

10.1016/0009-2614(79)85216-1

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：

An investigation of the quenching of porphyrin and metalloporphyrin excited states by oxygen in protic and aprotic organic solvents is reported. Studies using spin traps in the ESR together with an investigation of photooxidation behavior indicate that both superoxide ion and singlet oxygen are formed in the quenching process for several porphyrins. For the palladium complex, PdOEP, it has been determined that irreversible branching occurs in the quenching prior to the formation of free superoxide. © 1979.

引用

页码：511 / 515

页数：5

共 30 条

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