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Electrochemical and Mechanistic Study of Superoxide Scavenging by Pyrogallol in N,N-Dimethylformamide through Proton-Coupled Electron Transfer
https://gifu-pu.repo.nii.ac.jp/records/14851
https://gifu-pu.repo.nii.ac.jp/records/14851996961e3-9f36-4a54-bfd3-b82615ad64fa
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
electrochem-03-00008-v2 (2.4 MB)
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| Item type | 一般雑誌記事 / Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2023-03-20 | |||||
| タイトル | ||||||
| タイトル | Electrochemical and Mechanistic Study of Superoxide Scavenging by Pyrogallol in N,N-Dimethylformamide through Proton-Coupled Electron Transfer | |||||
| タイトル | ||||||
| タイトル | Electrochemical and Mechanistic Study of Superoxide Scavenging by Pyrogallol in N,N-Dimethylformamide through Proton-Coupled Electron Transfer | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | proton-coupled electron transfer | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | superoxide radical anion | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | antioxidants | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | cyclic voltammetry | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | electron spin resonance spectrum | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | pyrogallol | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | proton-coupled electron transfer | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | superoxide radical anion | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | antioxidants | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | cyclic voltammetry | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | electron spin resonance spectrum | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | pyrogallol | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | article | |||||
| 著者 |
nakayama, tatsushi
× nakayama, tatsushi× Honda, Ryo× Kuwata, Kazuo× Usui, Shigeyuki× Uno, Bunji |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Scavenging of electrogenerated superoxide radical anion (O2•−) by pyrogallol (PyH3) was investigated on the basis of cyclic voltammetry and in situ electrolytic electron spin resonance spectrum in N,N-dimethylformamide with the aid of density functional theory (DFT) calculations. Quasi-reversible dioxygen/O2•− redox couple was modified by the presence of PyH3, suggesting that O2•− was scavenged by PyH3 through proton-coupled electron transfer (PCET) involving two proton transfer and one electron transfer. DFT calculation suggested that the pre-reactive formation of a hydrogen-bond (HB) complex and the subsequent concerted two-proton-coupled electron transfer characterized by catechol moiety in PyH3 is plausible mechanism that embodies the superior kinetics of the O2•− scavenging by PyH3 as shown in the electrochemical results. Furthermore, it was clarified that the three hydroxyl groups of PyH3 promote the formation of HB complex, in comparative analyses using related compounds, resulting in the promotion of the O2•− scavenging. | |||||
| 書誌情報 |
Electrochem en : Electrochem 巻 3, 号 1, p. 115-128, 発行日 2022-02-08 |
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| 出版者 | ||||||
| 出版者 | MDPI | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2673-3293 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3390/electrochem3010008 | |||||
