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Title: 1-Titanacyclobuta-2,3-diene-an elusive four-membered cyclic allene
Authors: Reiß, FabianReiß, MelanieBresien, JonasSpannenberg, AnkeJiao, HaijunBaumann, WolfgangArndt, PerditaBeweries, Torsten
Publishers version: https://doi.org/10.1039/c9sc01002e
URI: https://oa.tib.eu/renate/handle/123456789/6719
https://doi.org/10.34657/5766
Issue Date: 2019
Published in: Chemical science 10 (2019), Nr. 20
Journal: Chemical science
Volume: 10
Issue: 20
Page Start: 5319
Page End: 5325
Publisher: Cambridge : RSC
Abstract: The synthesis of an unusual 1-metalla-2,3-cyclobutadiene complex [rac-(ebthi)Ti(Me3SiC3SiMe3)] (rac-ebthi = rac-1,2-ethylene-1,1′-bis(η5-tetrahydroindenyl)), a formal metallacyclic analogue of a non-existent four-membered 1,2-cyclobutadiene, is described. By variation of the cyclopentadienyl ligand of the titanocene precursor it was possible to stabilise this highly exotic compound which selectively reacts with ketones and aldehydes to yield enynes by oxygen transfer to titanium. Analysis of the bonding and electronic structure of the metallacycle shows that the complex is best described as an unusual antiferromagnetically coupled biradicaloid system, possessing a formal Ti(iii) centre coordinated with a monoanionic radical ligand. © 2019 The Royal Society of Chemistry.
Keywords: Electronic structure; Ketones; Ligands; Antiferro-magnetically coupled; Cyclopentadienyl ligands; Metallacycles; Oxygen transfer; Radical ligand; Titanocenes; Titanium compounds
Type: article; Text
Publishing status: publishedVersion
DDC: 540
License: CC BY 3.0 Unported
Link to license: https://creativecommons.org/licenses/by/3.0/
Appears in Collections:Chemie

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Reiß, Fabian, Melanie Reiß, Jonas Bresien, Anke Spannenberg, Haijun Jiao, Wolfgang Baumann, Perdita Arndt and Torsten Beweries, 2019. 1-Titanacyclobuta-2,3-diene-an elusive four-membered cyclic allene. 2019. Cambridge : RSC
Reiß, F., Reiß, M., Bresien, J., Spannenberg, A., Jiao, H., Baumann, W., Arndt, P. and Beweries, T. (2019) “1-Titanacyclobuta-2,3-diene-an elusive four-membered cyclic allene.” Cambridge : RSC. doi: https://doi.org/10.1039/c9sc01002e.
Reiß F, Reiß M, Bresien J, Spannenberg A, Jiao H, Baumann W, Arndt P, Beweries T. 1-Titanacyclobuta-2,3-diene-an elusive four-membered cyclic allene. Vol. 10. Cambridge : RSC; 2019.
Reiß, F., Reiß, M., Bresien, J., Spannenberg, A., Jiao, H., Baumann, W., Arndt, P., & Beweries, T. (2019). 1-Titanacyclobuta-2,3-diene-an elusive four-membered cyclic allene (Version publishedVersion, Vol. 10). Version publishedVersion, Vol. 10. Cambridge : RSC. https://doi.org/https://doi.org/10.1039/c9sc01002e
Reiß F, Reiß M, Bresien J, Spannenberg A, Jiao H, Baumann W, Arndt P, Beweries T. 1-Titanacyclobuta-2,3-diene-an elusive four-membered cyclic allene. 2019;10(20). doi:https://doi.org/10.1039/c9sc01002e


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