{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360565166557103744.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1021/acs.analchem.6b01279"}},{"identifier":{"@type":"URI","@value":"https://pubs.acs.org/doi/pdf/10.1021/acs.analchem.6b01279"}},{"identifier":{"@type":"PMID","@value":"27268123"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Coumarin–Spiropyran Dyad with a Hydrogenated Pyran Moiety for Rapid, Selective, and Sensitive Fluorometric Detection of Cyanide Anion"}],"description":[{"notation":[{"@value":"We synthesized a coumarin-spiropyran dyad with a hydrogenated pyran moiety (2), behaving as an off-on type fluorescent receptor for rapid, selective, and sensitive detection of cyanide anion (CN(-)) in aqueous media. The receptor itself shows almost no fluorescence with a quantum yield0.01, due to the delocalization of π-electrons over the molecule. Selective nucleophilic addition of CN(-) to the spirocarbon of the molecule rapidly promotes spirocycle opening within only 3 min. This leads to localization of π-electrons on the coumarin moiety and exhibits strong light-blue fluorescence at 459 nm with very high quantum yield (0.52). As a result of this, the receptor facilitates rapid, selective, and sensitive fluorometric detection of CN(-) as low as 1.0 μM."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420001326212646912","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"70343259"},{"@type":"NRID","@value":"1000070343259"},{"@type":"NRID","@value":"9000258668778"},{"@type":"NRID","@value":"9000016415902"},{"@type":"NRID","@value":"9000009744117"},{"@type":"NRID","@value":"9000007026874"},{"@type":"NRID","@value":"9000356674870"},{"@type":"NRID","@value":"9000347277079"},{"@type":"NRID","@value":"9000345195036"},{"@type":"NRID","@value":"9000283369785"},{"@type":"NRID","@value":"9000020733704"},{"@type":"NRID","@value":"9000356674865"},{"@type":"NRID","@value":"9000001104218"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0054695"}],"foaf:name":[{"@value":"Yasuhiro Shiraishi"}],"jpcoar:affiliationName":[{"@value":"Research\rCenter for Solar Energy Chemistry, and Division of Chemical Engineering,\rGraduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan"},{"@value":"PRESTO, JST, Saitama 332-0012, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380566394742668802","@type":"Researcher","foaf:name":[{"@value":"Masaya Nakamura"}],"jpcoar:affiliationName":[{"@value":"Research\rCenter for Solar Energy Chemistry, and Division of Chemical Engineering,\rGraduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380566394742668801","@type":"Researcher","foaf:name":[{"@value":"Naoto Hayashi"}],"jpcoar:affiliationName":[{"@value":"Research\rCenter for Solar Energy Chemistry, and Division of Chemical Engineering,\rGraduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380566394742668800","@type":"Researcher","foaf:name":[{"@value":"Takayuki Hirai"}],"jpcoar:affiliationName":[{"@value":"Research\rCenter for Solar Energy Chemistry, and Division of Chemical Engineering,\rGraduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00032700"},{"@type":"EISSN","@value":"15206882"}],"prism:publicationName":[{"@value":"Analytical Chemistry"}],"dc:publisher":[{"@value":"American Chemical Society 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