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Thermal and photoinduced electron-transfer catalysis of high-valent metal-oxo porphyrins in oxidation of substrates

Title
Thermal and photoinduced electron-transfer catalysis of high-valent metal-oxo porphyrins in oxidation of substrates
Authors
Fukuzumi, ShunichiWonwoo Nam
Ewha Authors
남원우Shunichi Fukuzumi
SCOPUS Author ID
남원우scopus; Shunichi Fukuzumiscopus
Issue Date
2016
Journal Title
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES
ISSN
1088-4246JCR Link1099-1409JCR Link
Citation
vol. 20, no. 42373.0, pp. 35 - 44
Keywords
electron-transfer catalysismetal-oxo complexesmetalloporphyrinsphotocatalytic oxidation
Publisher
WORLD SCI PUBL CO INC
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
In this manuscript, we have overviewed thermal and photoinduced electron transfer catalysis of high-valent metal-oxo porphyrins in oxidation of various substrates. The high-valent iron-oxo porphyrin in cytochrome P450 (P450) is produced by photoinduced electron transfer from electron donors, such as triethanolamine (TEOA), to the excited state of a photosensitizer such as eosin Y, followed by the reduction of the heme domain of P450 by the resulting radical anion of the photosensitizer and the subsequent reaction of the reduced heme with dioxygen (O-2). Various substrates were oxidized by O-2 in this visible light-driven electron-transfer catalytic reaction with several P450s from bacteria and humans. A manganese(V)-oxo corrorazine was produced by photoinduced electron transfer from the excited state of manganese(III) corrorazine to O-2, followed by hydrogen abstraction from toluene derivatives, catalyzing the oxidation of toluene derivatives with O-2 in the presence of an acid via photoinduced electron transfer catalysis. High-valent manganese-oxo porphyrins are also produced by photoinduced electron transfer from the excited state of [Ru(bpy)(3)](2+) (bpy = 2,2'-bipyridine) to electron acceptors, followed by electron transfer oxidation of manganese(III) porphyrins with [Ru(bpy)(3)](3+), catalyzing oxidation of various substrates with O-2. Finally photoinduced electron-transfer catalysis of cobalt porphyrins is discussed for the photocatalytic water oxidation with persulfate.
DOI
10.1142/S1088424616300032
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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