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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 245-250 
    ISSN: 0009-2940
    Keywords: Carbenes ; Organosilicon compounds ; Organotin compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Imidazole Derivatives, XIII. - Carbene Complexes of Silicon and TinHerrn Professor Peter Paetzold zum 60. Geburtstag gewidmet.Stable adducts of the composition L · SiCl4 (2), L · SiR2Cl2 (3,4), and L · SnR2Cl2 (6) are formed by the reaction of the imidazol-2-ylidenes L (1) with the corresponding silicon and tin halides. For L = SiCl4 (2b; L = 1,3-diethyl-4,5-dimethylimidazol-2-ylidene) and L · SnPh2Cl2 (6c; L = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) the monomeric nature of the compounds containing pentacoordinated silicon and tin is established by X-ray structure analyses. The reaction of 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (1c) with SnCl2 leads to the formation of the monomeric stannylene complex L · SnCl2 (7c; L = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) whose molecular geometry indicates a week carbon-to-tin donor bond [Sn—C(1) 2.290(5) Å].
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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