Organosilicon Radicals with Si–H and Si–Me Bonds from Commodity Precursors

The cyclic alkyl­(amino) carbene (cAAC) stabilized biradicals of composition (cAAC)2SiH2 (1), (cAAC)­SiMe2-SiMe2(cAAC) (2), and (cAAC)­SiMeCl-SiMeCl­(cAAC) (3) have been isolated as molecular species. All the compounds are stable at room temperature for more than 6 months under inert conditions in t...

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Published inJournal of the American Chemical Society Vol. 139; no. 32; pp. 11028 - 11031
Main Authors Kundu, Subrata, Samuel, Prinson P, Sinhababu, Soumen, Luebben, Anna V, Dittrich, Birger, Andrada, Diego M, Frenking, Gernot, Stückl, A. Claudia, Schwederski, Brigitte, Paretzki, Alexa, Kaim, Wolfgang, Roesky, Herbert W
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 16.08.2017
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Summary:The cyclic alkyl­(amino) carbene (cAAC) stabilized biradicals of composition (cAAC)2SiH2 (1), (cAAC)­SiMe2-SiMe2(cAAC) (2), and (cAAC)­SiMeCl-SiMeCl­(cAAC) (3) have been isolated as molecular species. All the compounds are stable at room temperature for more than 6 months under inert conditions in the solid state. All radical species were fully characterized by single-crystal X-ray structure analysis and EPR spectroscopy. Furthermore, the structure and bonding of compounds 1–3 have been investigated by theoretical methods. Compound 1 contains the SiH2 moiety and this is the first instance, where we have isolated 1 without an acceptor molecule.
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ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.7b06610