{"created":"2023-06-19T07:26:24.028272+00:00","id":14853,"links":{},"metadata":{"_buckets":{"deposit":"23f02d5a-9117-430f-b477-a19579778707"},"_deposit":{"created_by":140,"id":"14853","owners":[140],"pid":{"revision_id":0,"type":"depid","value":"14853"},"status":"published"},"_oai":{"id":"oai:gifu-pu.repo.nii.ac.jp:00014853","sets":["212:249:345"]},"author_link":["32440","36618"],"item_10004_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-11-01","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"141467","bibliographicVolumeNumber":"436","bibliographic_titles":[{"bibliographic_title":"Electrochimica Acta"},{"bibliographic_title":"Electrochimica Acta","bibliographic_titleLang":"en"}]}]},"item_10004_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We have carried out an electrochemical and theoretical study on the reactivity of 1,2-, 1,3-, and 1,4-dihydroxynaphthalenes (1nH2NQ, n = 2, 3, 4) toward electrogenerated superoxide radical anion (O2•−) in N,N-dimethylformamide. Cyclicvoltammetry and in situ electrolytic electron spin resonance measurements revealed that the quinone–hydroquinone π-conjugation plays an important role in a successful O2•− scavenging by 12H2NQ and 14H2NQ through proton-coupled electron transfer (PCET) reaction. The reactivities of 12H2NQ and 14H2NQ toward O2•− were mediated by the ortho- (catechol) or para-diphenol (hydroquinone) moieties, as experimentally confirmed in comparative analyses with catechol, hydroquinone, and 13H2NQ, aided by density functional theory (DFT) calculations. The electrochemical and DFT results suggested that a concerted PCET mechanism involving two-proton transfers and one-electron transfer proceeds, demonstrating a successful O2•− scavenging by 12H2NQ and 14H2NQ. Furthermore, a subsequent electron transfer between molecular dioxygen and product-naphthoquinone-radicals was observed, where O2•− was regenerated. The DFT analysis suggested that the spin distribution on the planar naphthalene ring embodies the superior kinetics of the PCET and the subsequent generation of O2•− from dioxygen demonstrated in the electrochemical results.","subitem_description_type":"Abstract"}]},"item_10004_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_10004_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.electacta.2022.141467","subitem_relation_type_select":"DOI"}}]},"item_10004_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00134686","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"nakayama, tatsushi"}],"nameIdentifiers":[{"nameIdentifier":"32440","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"N000638361","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/N000638361"}]},{"creatorNames":[{"creatorName":"Uno, Bunji"}],"nameIdentifiers":[{"nameIdentifier":"36618","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_login","displaytype":"detail","filename":"1-s2.0-S0013468622016243-main.pdf","filesize":[{"value":"2.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"1-s2.0-S0013468622016243-main","url":"https://gifu-pu.repo.nii.ac.jp/record/14853/files/1-s2.0-S0013468622016243-main.pdf"},"version_id":"1adcdfd3-fd15-48d2-8181-3fa0a63c1fc9"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Reactivities of 1,2-, 1,3-, and 1,4-dihydroxynaphthalenes toward electrogenerated superoxide in N,N-dimethylformamide through proton-coupled electron transfer","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Reactivities of 1,2-, 1,3-, and 1,4-dihydroxynaphthalenes toward electrogenerated superoxide in N,N-dimethylformamide through proton-coupled electron transfer"},{"subitem_title":"Reactivities of 1,2-, 1,3-, and 1,4-dihydroxynaphthalenes toward electrogenerated superoxide in N,N-dimethylformamide through proton-coupled electron transfer","subitem_title_language":"en"}]},"item_type_id":"10004","owner":"140","path":["345"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-03-20"},"publish_date":"2023-03-20","publish_status":"0","recid":"14853","relation_version_is_last":true,"title":["Reactivities of 1,2-, 1,3-, and 1,4-dihydroxynaphthalenes toward electrogenerated superoxide in N,N-dimethylformamide through proton-coupled electron transfer"],"weko_creator_id":"140","weko_shared_id":-1},"updated":"2023-06-19T07:38:44.244935+00:00"}