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The stannylene (Boryl)\n            <jats:sub>2<\/jats:sub>\n            Sn [where Boryl is B(NDippCH)\n            <jats:sub>2<\/jats:sub>\n            ] coordinates CO reversibly, affording an isolable adduct below 0\u00b0C, which was characterized by x-ray crystallography. This complex rearranges at temperatures above 0\u00b0C to generate the stannavinylidene, (Boryl)(OBoryl)C=Sn, that is, a complex between the triplet carbene (Boryl)(OBoryl)C and monatomic Sn(0) in its electronic ground state.\n          <\/jats:p>","DOI":"10.1126\/science.ady0247","type":"journal-article","created":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T18:00:56Z","timestamp":1757613656000},"page":"1118-1121","update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":6,"title":["A main-group metal carbonyl complex: Structure and isomerization to a carbene-stabilized tin atom"],"prefix":"10.1126","volume":"389","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-7034-8406","authenticated-orcid":true,"given":"Maximilian","family":"Dietz","sequence":"first","affiliation":[{"name":"Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, UK."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrey V.","family":"Protchenko","sequence":"additional","affiliation":[{"name":"Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, UK."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0786-5205","authenticated-orcid":true,"given":"Agamemnon E.","family":"Crumpton","sequence":"additional","affiliation":[{"name":"Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, UK."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9258-6392","authenticated-orcid":true,"given":"Surendar","family":"Karwasara","sequence":"additional","affiliation":[{"name":"Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, UK."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5095-6524","authenticated-orcid":true,"given":"Matthew M. 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