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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 815-821 
    ISSN: 0009-2940
    Keywords: Fluorosiloxanols ; Lithium fluorosiloxanolates ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Lithium Compounds of a Silanediol, a 1-Fluoro-1, 3-disiloxane-3-ol, and a 1-Fluoro-1, 3, 5,-trisiloxane-5ol; Synthesis and Crystal StructuresThe lithiated disilanol (CMe3)2Si(OLi)OH (2) serves as a starting material in the reaction with halosilanes for the stepwise construction of siloxanols 3, 8, 10 and siloxanes 6, 9, 3 and 10 react with n-C4H9Li to give the lithium compounds 7 and 11. The coordination at lithium is tetrahedral in 2, trigonal pyramidal in 7, and planar in 11. Lithium is bound to four Si-O atoms in 2, two Si-O atoms and one THF molecule in 7, and two Si-O atoms and one Si-F atom in 11. The crystal structures of 2, 7, and 11 are discussed.
    Notes: Das lithiierte Disilanol (CMe3)2Si(OLi)OH (2) dient in Reaktionen mit Halogensilanen als Startmaterial zum stufenweisen Aufbau von Siloxanolen 3, 8, 10 und siloxanen 6, 9. n-C4H9Li reagiert mit 3 und 10 zu den Lithium-Verbindungen 7 und 11. Das Lithium ist in 2 tetraedrisch, in 7 trigonal-pyramidal und in 11 planar koordiniert. Die Bindungspartner des Lithiums in 2 sind vier Si-O-Atome, in 7 zwei Si-O-Atome und ein THF-Molekül und in 11 zwei Si-O-und ein Si-F-Atom. Die Kristallstrukturen von 2, 7 und 11 werden diskutiert.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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