{"_buckets": {"deposit": "ccd0ae5c-4e37-48a4-9f09-eed7d4aad939"}, "_deposit": {"created_by": 17, "id": "2001601", "owner": "17", "owners": [17], "owners_ext": {"displayname": "図書情報係", "username": "repository"}, "pid": {"revision_id": 0, "type": "depid", "value": "2001601"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:02001601", "sets": ["322"]}, "author_link": [], "control_number": "2001601", "item_1615768549627": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_ab4af688f83e57aa", "subitem_version_type": "AM"}]}, "item_1629683748249": {"attribute_name": "日付", "attribute_value_mlt": [{"subitem_date_issued_datetime": "2022-03-24", "subitem_date_issued_type": "Available"}]}, "item_9_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2021-03-24", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "11", "bibliographicPageEnd": "4358", "bibliographicPageStart": "4346", "bibliographicVolumeNumber": "143", "bibliographic_titles": [{"bibliographic_title": "Journal of the American Chemical Society", "bibliographic_titleLang": "en"}]}]}, "item_9_description_4": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "A stimuli-responsible reversible structural transformation is of key importance in biological systems. We now report a unique water-mediated reversible transformation among three discrete double-stranded dinuclear titanium(IV) achiral meso- and chiral rac-helicates linked by a mono(μ-oxo) or a bis(μ-hydroxo) bridge between the titanium ions through hydration/dehydration or its combination with a water-mediated dynamic cleavage/re-formation of the titanium-phenoxide (Ti–OPh) bonds. The bis(μ-hydroxo) bridged titanium(IV) meso-helicate prepared from two tetraphenol strands with titanium(IV) oxide was readily dehydrated in CD3CN containing a small amount of water upon heating, accompanied by Ti–OPh bond cleavage/re-formation catalyzed by water, resulting in the formation of the mono(μ-oxo)-bridged rac-helicate, which reverted back to the original bis(μ-hydroxo)-bridged meso-helicate upon hydration in aqueous CD3CN. These reversible transformations between the meso- and rac-helicates were also promoted in the presence of a catalytic amount of an acid, which remarkably accelerated the reactions at lower temperature. Interestingly, in anhydrous CD3CN, the bis(μ-hydroxo)-bridged meso-helicate was further slowly converted to a different helicate, while its meso-helicate framework was maintained, namely the mono(μ-oxo)-bridged meso-helicate, through dehydration upon heating and its meso to meso transformation was significantly accelerated in the presence of cryptand[2.2.1], which contributes to removing Na^+ ions coordinated to the helicate. Upon cooling, the backward meso to meso transformation took place via hydration. Hence, three different, discrete double-stranded chiral rac- and achiral meso-titanium(IV) helicates linked by a mono(μ-oxo) or a bis(μ-hydroxo) bridge were successfully generated in a controllable manner by a change in the water content of the reaction media.", "subitem_description_language": "en", "subitem_description_type": "Abstract"}]}, "item_9_publisher_32": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "ACS Publications", "subitem_publisher_language": "en"}]}, "item_9_relation_43": {"attribute_name": "関連情報", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1021/jacs.0c13351", "subitem_relation_type_select": "DOI"}}]}, "item_9_rights_12": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "This document is the Accepted Manuscript version of a Published Work that appeared in final form in [Journal of the American Chemical Society], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [https://pubs.acs.org/articlesonrequest/AOR-JCWSWZ62GSAF27WWPNJ5].”", "subitem_rights_language": "en"}]}, "item_9_source_id_7": {"attribute_name": "収録物識別子", "attribute_value_mlt": [{"subitem_source_identifier": "0002-7863", "subitem_source_identifier_type": "PISSN"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "open access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_abf2"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Ousaka, Naoki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Itakura, Manabu", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Nagasaka, Akira", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Ito, Masaki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hattori, Tomonari", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Taura, Daisuke", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Ikai, Tomoyuki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yashima, Eiji", "creatorNameLang": "en"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2022-03-24"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "Yashima-rev.pdf", "filesize": [{"value": "11.9 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "application/pdf", "size": 11900000.0, "url": {"objectType": "fulltext", "url": "https://nagoya.repo.nii.ac.jp/record/2001601/files/Yashima-rev.pdf"}, "version_id": "b6a082bd-6121-4e1c-8d35-96048b6e4edc"}]}, "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": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Water-Mediated Reversible Control of Three-State Double-Stranded Titanium(IV) Helicates", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Water-Mediated Reversible Control of Three-State Double-Stranded Titanium(IV) Helicates", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "17", "path": ["322"], "permalink_uri": "http://hdl.handle.net/2237/0002001601", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2021-11-11"}, "publish_date": "2021-11-11", "publish_status": "0", "recid": "2001601", "relation": {}, "relation_version_is_last": true, "title": ["Water-Mediated Reversible Control of Three-State Double-Stranded Titanium(IV) Helicates"], "weko_shared_id": -1}