Dimerization of a marginally stable disilenyl germylene to tricyclic systems: evidence for reversible NHC-coordination

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dc.authoridYildiz, Cem Burak -- 0000-0002-0424-4673; Nieder, David -- 0000-0002-7901-4119
dc.contributor.authorNieder, David
dc.contributor.authorYıldız, Cem Burak
dc.contributor.authorJana, Anukul
dc.contributor.authorZimmer, Michael
dc.contributor.authorHuch, Volker
dc.contributor.authorScheschkewitz, David
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:27:01Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:27:01Z
dc.date.issued2016
dc.departmentTeknik Bilimler Meslek Yüksekokulu
dc.description.abstractTetrasiladigermatricyclohexanes in two isomeric forms (chair and doubly-bridged tetrahedron) are obtained by the reaction of MeLi with an alpha-chlorosilyl functionalized NHC-stabilized silagermenylidene. Si-29 NMR at low temperature proves the initial formation of a monomeric NHC-adduct of a disilenyl germylene followed by cyclisation to the isomeric heavy cyclopropene. Addition of an excess of NHC stabilizes the both intermediates and demonstrates the reversibility of rate-determining initial equilibria involving NHC dissociation. Finally, a mixture of two isomeric tricyclic Si4Ge2 species is obtained: at elevated temperature the chair isomer converts to the doubly edge-bridged tetrahedron.
dc.description.sponsorshipDeutsche Forschungsgemeinschaft (DFG) [SCHE906/5-1]; Alfried Krupp von Bohlen und Halbach-Foundation; COST Action (Smart Inorganic Polymers) [CM1302]; TCIS Hyderabad
dc.description.sponsorshipRamona Cullmann is acknowledged for her TOC art. Support for this study was provided by the Deutsche Forschungsgemeinschaft (DFG SCHE906/5-1), Alfried Krupp von Bohlen und Halbach-Foundation, and COST Action CM1302 (Smart Inorganic Polymers). A. J. thanks to TCIS Hyderabad for providing a knowledge exchange grant.
dc.identifier.doi10.1039/c5cc09878e
dc.identifier.endpage2802en_US
dc.identifier.issn1359-7345
dc.identifier.issn1364-548X
dc.identifier.issue13en_US
dc.identifier.pmid26771028
dc.identifier.scopusqualityQ1
dc.identifier.startpage2799en_US
dc.identifier.urihttps://doi.org/10.1039/c5cc09878e
dc.identifier.urihttps://hdl.handle.net/20.500.12451/5770
dc.identifier.volume52en_US
dc.identifier.wosWOS:000369642800033
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofChemical Communications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleDimerization of a marginally stable disilenyl germylene to tricyclic systems: evidence for reversible NHC-coordination
dc.typeArticle

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