{"@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/1360848654855232256.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/anie.201707553"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fanie.201707553"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/anie.201707553"}},{"identifier":{"@type":"DOI","@value":"10.1002/ange.201707553"}},{"identifier":{"@type":"PMID","@value":"28846173"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Benzodisilacyclobutadienes: 8π‐Electron Systems with an Antiaromatic Silicon Ring"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>Benzodisilacyclobutadienes <jats:bold>2 a</jats:bold>–<jats:bold>c</jats:bold> were isolated as blue to green crystalline solids from the reaction of stable disilyne <jats:bold>1</jats:bold> and 1,2‐dibromobenzenes in the presence of potassium graphite. In the solid state, substantial bond alternation was observed within the benzene rings of <jats:bold>2 a</jats:bold>–<jats:bold>c</jats:bold>. In hexane, <jats:bold>2 a</jats:bold>–<jats:bold>c</jats:bold> showed remarkable bathochromic shifts of the π→π* (HOMO→LUMO) absorption bands at 625–670 nm. NMR spectra and theoretical calculations indicated that the diamagnetic ring currents of the benzene rings of <jats:bold>2 a</jats:bold>–<jats:bold>c</jats:bold> are considerably reduced by contributions from the antiaromatic 1,2‐disilacyclobutadienes. In their entirety, the obtained results indicate that <jats:bold>2 a</jats:bold>–<jats:bold>c</jats:bold> represent 8π‐electron systems that contain an antiaromatic 1,2‐disilacyclobutadiene.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420845751145182848","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"90436080"},{"@type":"NRID","@value":"1000090436080"},{"@type":"NRID","@value":"9000283121861"},{"@type":"NRID","@value":"9000258600421"},{"@type":"NRID","@value":"9000001471801"},{"@type":"NRID","@value":"9000016385765"},{"@type":"NRID","@value":"9000309179511"},{"@type":"NRID","@value":"9000403427767"},{"@type":"NRID","@value":"9000258595325"},{"@type":"NRID","@value":"9000412253828"},{"@type":"NRID","@value":"9000283148343"},{"@type":"NRID","@value":"9000257735207"},{"@type":"NRID","@value":"9000265246322"},{"@type":"NRID","@value":"9000283393543"},{"@type":"NRID","@value":"9000283395103"},{"@type":"NRID","@value":"9000283123387"},{"@type":"NRID","@value":"9000001161085"},{"@type":"NRID","@value":"9000000050164"},{"@type":"NRID","@value":"9000356478349"},{"@type":"NRID","@value":"9000314804017"},{"@type":"NRID","@value":"9000283740906"},{"@type":"NRID","@value":"9000396151052"},{"@type":"NRID","@value":"9000387917119"},{"@type":"NRID","@value":"9000353371888"},{"@type":"NRID","@value":"9000415314256"},{"@type":"NRID","@value":"9000014186716"},{"@type":"NRID","@value":"9000019059457"},{"@type":"NRID","@value":"9000362235817"},{"@type":"NRID","@value":"9000258600733"},{"@type":"NRID","@value":"9000283122762"},{"@type":"NRID","@value":"9000257713042"},{"@type":"NRID","@value":"9000253311158"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/shintaro_ishida_2020"}],"foaf:name":[{"@value":"Shintaro 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