書誌事項
- タイトル別名
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- Oxygen Evolution from Water Catalyzed by Mononuclear Aquaruthenium Complexes
- ルテニウムタンカク サクタイ オ ショクバイ ト スル ミズ カラ ノ サンソ ハッセイ ハンノウ
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[Ru(terpy)(bpy)(OH2)]2+ and its analogues were found to be highly active as catalysts toward water oxidation in the presence of Ce4+ as an oxidizing reagent in acidic aqueous media. These findings were considered as a significant breakthrough in this field because there had been a long belief that the four-electron process (i.e., 2H2O→O2+4H++4e−) is much more effectively accelerated by dinuclear or tetranuclear metal complexes. The kinetics of O2 evolution is investigated as a function of either the catalyst concentration or the oxidant concentration, revealing that these catalysts can be classified into two groups exhibiting different rate laws for O2 evolution. Moreover, the singlet biradical character of the hydroxocerium(IV) ion is realized, indicating that the radical coupling of the oxygen atoms of a RuV=O species and a hydroxocerium(IV) ion is the key step for the catalysis. Several important insights into the mechanism of oxygen evolution from water catalyzed by the mononuclear aquaruthenium complexes will also be discussed.
収録刊行物
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- 有機合成化学協会誌
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有機合成化学協会誌 69 (4), 370-378, 2011
公益社団法人 有機合成化学協会
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詳細情報 詳細情報について
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- CRID
- 1390282680288935680
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- NII論文ID
- 10028125384
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- NII書誌ID
- AN0024521X
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- COI
- 1:CAS:528:DC%2BC3MXkvFGlsLc%3D
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- ISSN
- 18836526
- 00379980
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- NDL書誌ID
- 11079569
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- KAKEN
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- 使用不可