Organosilicon Radicals with Si-H and Si-Me Bonds from Commodity Precursors
| Autor: | Anna V. Luebben, A. Claudia Stückl, Gernot Frenking, Alexa Paretzki, Diego M. Andrada, Birger Dittrich, Wolfgang Kaim, Subrata Kundu, Herbert W. Roesky, Prinson P. Samuel, Soumen Sinhababu, Brigitte Schwederski |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
010405 organic chemistry Radical General Chemistry 010402 general chemistry Photochemistry 01 natural sciences Biochemistry Acceptor Catalysis 0104 chemical sciences law.invention chemistry.chemical_compound Colloid and Surface Chemistry chemistry law Polymer chemistry Molecule Moiety Electron paramagnetic resonance Carbene Alkyl Organosilicon |
| Zdroj: | Journal of the American Chemical Society. 139(32) |
| ISSN: | 1520-5126 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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