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2000 (1)
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1Author    Gabriele Schatte, Helge WillnerRequires cookie*
 Title    Die Wechselwirkung von N 3F mit Lewis-Säuren und HF. N 3F als möglicher Vorläufer für die Synthese von N 3+-Salzen The Interaction of N 3F with Lewis-Acids and HF. N 3F as Possible Precursor for the Synthesis of N 3+ Salts  
 Abstract    Triazadienyl fluoride, N 3F, forms stable adducts with BF3 and AsF5 at low temperatures, as demonstrated by infrared measurements. The Lewis acids are bonded to the Na-atom of N 3F, as deduced from the data for 15N-isotopically enriched N 3F. The basicity of N 3F is comparable to that of ethine and ethene, according to the HF stretching frequency of the N 3F/HF complex isolated in an argon matrix. Despite the low NF bond energy (<150 kJ/mol), abstraction of the fluoride ion and formation of an N 3+ salt was not possible. The different behavior of N 3F and C1N3 towards Lewis acids is discussed. 
  Reference    Z. Naturforsch. 46b, 483—489 (1991); eingegangen am 3. September 1990 
  Published    1991 
  Keywords    Triazadienyl Fluoride, IR Spectra, Lewis Acids, Proton Affinity 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0483.pdf 
 Identifier    ZNB-1991-46b-0483 
 Volume    46 
2Author    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 
3Author    HerbertW. Roesky, Erwin WehnerRequires cookie*
 Title    Reactions of 3,4-Dichloro-l,2,5-thiadiazol  
 Abstract    SN2C2CI2 prepared from (CN)2 and S2CI2 reacts with BCI3, SbCls and SO3 to yield the 1:1 adducts, TiCU forms an 1:2 adduct. The adducts were characterized on the basis of IR and Raman spectra. SN2C2CI2 is alkylated with (C2H5)30 + BF4~ at one of the nitrogen atoms. The results are compared with adducts of S2N2CO with Lewis acids. 
  Reference    Z. Naturforsch. 36b, 1247—1250 (1981); eingegangen am 22. Juni 1981 
  Published    1981 
  Keywords    Sulfur-Nitrogen Compounds, Lewis Acids, Raman Spectra, IR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1247.pdf 
 Identifier    ZNB-1981-36b-1247 
 Volume    36