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Electrochemical and Computational Analysis of Superoxide/Hydroperoxyl Radical Trap by 5,5-Dimethyl-1-pyrroline N-oxide in N,N-dimethylformamide
https://gifu-pu.repo.nii.ac.jp/records/14850
https://gifu-pu.repo.nii.ac.jp/records/148503699f988-32c1-4738-a10b-14fbfc8b31f3
| Item type | 一般雑誌記事 / Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-01-20 | |||||
| タイトル | ||||||
| タイトル | Electrochemical and Computational Analysis of Superoxide/Hydroperoxyl Radical Trap by 5,5-Dimethyl-1-pyrroline N-oxide in N,N-dimethylformamide | |||||
| タイトル | ||||||
| タイトル | Electrochemical and Computational Analysis of Superoxide/Hydroperoxyl Radical Trap by 5,5-Dimethyl-1-pyrroline N-oxide in N,N-dimethylformamide | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | hydroperoxyl radical | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | spin trap | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 5,5-dimethyl-1- pyrroline N-oxide | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | electrochemistry | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | electron spin resonance | |||||
| 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 | hydroperoxyl radical | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | spin trap | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | 5,5-dimethyl-1- pyrroline N-oxide | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | electrochemistry | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | electron spin resonance | |||||
| 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 | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
nakayama, tatsushi
× nakayama, tatsushi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Spin trap of electrogenerated superoxide radical anion (O2•−) and hydroperoxyl radical (HO2•) using 5,5-dimethyl-1-pyrroline N-oxide (DMPO) was investigated via cyclicvoltammetry and in situ electrolytic electron spin resonance (ESR) measurements in dehydrated N,Ndimethylformamide (DMF) aided by density functional theory calculations. In aprotic environments, DMPO gradually traps the electrogenerated O2•, however, its trap rate is considerably slow. Conversely, adding a small amount of proton source to O2•− to form HO2• changes the voltammetric behavior, rendering the detection of the spin adduct easy with ESR. These electrochemical and ESR results obtained in aprotic DMF well demonstrate the differences between O2•− trap and HO2• trap, since the effects of a proton derived from aqueous solvent on O2•−/HO2• traps, such as superoxide spontaneous dismutation and pH of solution, are not involved. Accordingly, the obtained kinetic and thermodynamic results show the exact chemical reaction parameters for each of the O2•−/HO2• trap. Therefore, these results will be useful for estimating an apparent O2•−/HO2• adduct-formation in aqueous ESR measurements. |
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| 書誌情報 |
International Journal of Innovative Science, Engineering & Technology en : International Journal of Innovative Science, Engineering & Technology 巻 9, 号 1, 発行日 2022-01-20 |
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| 出版者 | ||||||
| 出版者 | IJISET.COM | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2348-7968 | |||||
