Siliciumverbindungen mit starken intramolekularen sterischen Wechselwirkungen, XX [1] 1,1-Di-tert-butyl-2,2-dimesityldisilane: Synthese, Molekülstruktur, Radikale / Silicon Compounds with Strong Intramolecular Steric Interactions, XX [1] 1,1-Di-tert-butyl-2,2-dimesityldisilanes: Synthesis, Molecular Structure, Radicals
Open Access
- 1 May 1985
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 40 (5) , 601-606
- https://doi.org/10.1515/znb-1985-0508
Abstract
The sterically congested disilanes tBu2XSiSiXMes2 [X = H (1), X = Cl (2)] have been prepared. An X-ray structure analysis of 1 reveals a preference for the anti-conformation in the solid state. Similar results have been obtained by empirical force field calculations and DNMR spectroscopy. Reaction of 2 with an electron rich olefin leads to a chlorine bridged disilanyl radical whereas treatment with alkali metals yields the corresponding disilenyl radical anion, tBu2Si=SiMes2˙̄.Keywords
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