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2000 (1)
1Author    M. Elanie Piilm, Joachim Becht, R. Einhold TackeRequires cookie*
 Title    Singly Charged A6Si-Silicate Anions with an Si¥5C Skeleton: Syntheses and Crystal Structure Analyses of the Ionic Hexacoordinate Silicon Compounds [Me3NH][F5SiCH2N M e2H ]H 20 and [Me3NH][F5SiCH2NMe3] H2 0  
 Abstract    The zwitterionic A^S/'-tetrafluorosilicates F4SiCH 2N M e2H (1) and F4SiCH2NM e3 (2) behave as Lewis acids and react with [Me3NH]F (molar ratio 1:1) in aqueous solution to yield the ionic A657-pentafluorosilicates [Me3NH][F5SiCH2N M e2H] (3) and [Me3NH][F5SiCH2N M e3l (4), respectively. These hexacoordinate silicon compounds contain singly charged A6S/-silicate anions ([F.sSiCHiNM eiH]-, [F5SiCH2NM e3]-) with an S/F 5 C skeleton. Compounds 3 and 4 were isolated as the crystalline hydrates 3 H 20 (yield 80%) and 4 H 20 (yield 82%) which were structurally characterized by single-crystal X-ray diffraction. The ^/-coordination polyhedra in the crystals of 3 H 20 and 4 H20 are slightly distorted octahedra. 
  Reference    (Z. Naturforsch. 55b, 60—64 [2000]; received October 5 1999) 
  Published    2000 
  Keywords    Pentacoordinate Silicon, Hexacoordinate Silicon, Lewis Acid, Crystal Structure 
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 TEI-XML for    default:Reihe_B/55/ZNB-2000-55b-0060.pdf 
 Identifier    ZNB-2000-55b-0060 
 Volume    55