Tris(pentafluoroethyl)silanol Derivatives and theLewisAmphoteric Tris(pentafluoroethyl)silanolate Anion, [Si(C2F5)3O]

Tiessen N, Schwarze N, Neumann B, Stammler H-G, Hoge B (2021)
Chemistry - A European Journal.

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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Abstract / Bemerkung
While alkyl substituted siloxanes are widely known, virtually nothing is known about perfluoroalkyl siloxanes and their congener species, the silanols and silanolates. We recently reported on the tris(pentafluoroethyl)silanide ion, [Si(C2F5)3]-, which featuresLewisamphoteric character deriving from the pentafluoroethyl substituents and their strong electron-withdrawing properties. Transferring this knowledge, we investigated theLewisamphoteric behavior of the tris(pentafluoroethyl)silanolate,[Si(C2F5)3O]-. In order to examine suchLewisamphoteric behavior, we first developed a strategy for the synthesis of the corresponding silanol Si(C2F5)3OH, which readily condenses at room temperature to the hexakis(pentafluoroethyl)disiloxane,(C2F5)3SiOSi(C2F5)3.Deprotonation of Si(C2F5)3OH employing a sterically demanding phosphazene base allows the characterization of the first example of a dimeric triorganosilanolate: the dianionic hexakis(pentafluoroethyl)disilanolate,[{Si(C2F5)3O}2]2-, impliesLewisamphoteric character of the monomeric[Si(C2F5)3O]-anion. © 2021 Wiley-VCH GmbH.
Erscheinungsjahr
2021
Zeitschriftentitel
Chemistry - A European Journal
eISSN
1521-3765
Page URI
https://pub.uni-bielefeld.de/record/2955531

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Tiessen N, Schwarze N, Neumann B, Stammler H-G, Hoge B. Tris(pentafluoroethyl)silanol Derivatives and theLewisAmphoteric Tris(pentafluoroethyl)silanolate Anion, [Si(C2F5)3O]. Chemistry - A European Journal. 2021.
Tiessen, N., Schwarze, N., Neumann, B., Stammler, H. - G., & Hoge, B. (2021). Tris(pentafluoroethyl)silanol Derivatives and theLewisAmphoteric Tris(pentafluoroethyl)silanolate Anion, [Si(C2F5)3O]. Chemistry - A European Journal. https://doi.org/10.1002/chem.202101845
Tiessen, N., Schwarze, N., Neumann, B., Stammler, H. - G., and Hoge, B. (2021). Tris(pentafluoroethyl)silanol Derivatives and theLewisAmphoteric Tris(pentafluoroethyl)silanolate Anion, [Si(C2F5)3O]. Chemistry - A European Journal.
Tiessen, N., et al., 2021. Tris(pentafluoroethyl)silanol Derivatives and theLewisAmphoteric Tris(pentafluoroethyl)silanolate Anion, [Si(C2F5)3O]. Chemistry - A European Journal.
N. Tiessen, et al., “Tris(pentafluoroethyl)silanol Derivatives and theLewisAmphoteric Tris(pentafluoroethyl)silanolate Anion, [Si(C2F5)3O]”, Chemistry - A European Journal, 2021.
Tiessen, N., Schwarze, N., Neumann, B., Stammler, H.-G., Hoge, B.: Tris(pentafluoroethyl)silanol Derivatives and theLewisAmphoteric Tris(pentafluoroethyl)silanolate Anion, [Si(C2F5)3O]. Chemistry - A European Journal. (2021).
Tiessen, Natalia, Schwarze, Nico, Neumann, Beate, Stammler, Hans-Georg, and Hoge, Berthold. “Tris(pentafluoroethyl)silanol Derivatives and theLewisAmphoteric Tris(pentafluoroethyl)silanolate Anion, [Si(C2F5)3O]”. Chemistry - A European Journal (2021).

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