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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 245-252 
    ISSN: 0009-2940
    Keywords: Germylenes ; Germanium nitrogen compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Germylenes with Azides: Iminogermanes, Azidogermanes, Tetrazagermoles and HexaazadigermadispirododecanesGermylenes, X2Ge, stabilized by steric blocking and/or incorporation into five-membered ring systems, react with azido compounds YN3 depending on the steric requirements of the substituents X and Y to give iminogermanes, X2Ge=NY (1, 2) azidogermanes X2Ge(N3)NY2 (6-8) tetrazagermoles, X2Ge(— NY — N =)2 (10-16), and hexaazadigermadispirododecanes, [(— NR — CH2 — CH2 — NR —)Ge(μ-NY -)]2 (17, 18). NMR (1H, 13C, 14N, 15N, and 29Si), MS data, and X-ray structure analyses of the compounds 8, 9, 16, and 18 are reported.
    Notes: Durch sterische Blockierung und/oder Einbau in fünfgliedrige Ringsysteme stabilisierte Germylene, X2Ge, reagieren mit Azidoverbindungen, YN3, in Abhängigkeit von der Raumerfüllung der Substituenten X und Y zu Iminogermanen X2 Ge=NY (1, 2), Azidogermanen, X2Ge(N3)NY2 (6′8), Tetrazagermolen, X2Ge-(-NY-N=)2 (10-16), bzw. Hexaazadigermadispirododecanen, [(—NR—CH2—CH2—NR— )Ge(μ-NY-)]2 (17, 18). NMR-(1H, 13C, 14N, 15N und 29Si), MS-Daten und Röntgenstrukturanalysen für die Verbindungen 8, 9, 16 und 18 sind angegeben.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 511 (1984), S. 185-192 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sterically Hindered Alkoxy (bromo)silanes and Alkoxysilyl(amino) boranesBromo(i-propoxy)silanes, (i-PrO)nSiBr4-n, are obtained from SiBr4 and 2-propanol in the presence of triethylamine. Bromo(t-butoxy)silanes, (t-buO)nSiBr4-n, are synthesized from SiBr4 and t-buOK.2,4,6-(t-bu)3C6H2OSiBr3 is formed from 2,4,6-(t-bu)3C6H2OLi and SiBr4. From the reaction of lithiated amines with SiBr4 amino(bromo)silanes, (R1R2N)nSiBr4-n, are obtained. The reaction between (RO)3SiBr and ClB(NR1R2)2 with potassium in hexane leads to (RO)3SiB(NR1R2)2. Corresponding reactions with (RO)2SiBr2 give mixtures of products in which compounds with bond sequences are detected. The compounds are characterized by their mass and n.m.r. spectra, and so far as they can be isolated in a pure state by analyses.
    Notes: Brom(i-propoxy)silane, (i-PrO)nSiBr4-n, werden aus SiBr4 und 2-Propanol in Gegenwart von Triethylamin erhalten. Brom(t-butoxy)silane, (t-BuO)nSiBr4-n, werden aus SiBr4 und t-BuOK synthetisiert. 2,4,6-(t-Bu)3C6H2OSiBr3 entsteht aus 2,4,6-(t-Bu)3C6H2OLi und SiBr4. Durch Umsetzung lithiierter Amine mit SiBr4 erhält man Amino(brom)silane, (R1R2N)nSiBr4-n. Die Umsetzung von (RO)3SiBr mit ClB(NR1R2)2 führt in Gegenwart von Kalium in Hexan zu (RO)3SiB-(NR1R2)2. Entsprechende Umsetzungen mit (RO)2SiBr2 geben Produktgemische, in denen Verbindungen mit den Bindungssequenzen nachgewiesen werden. Die Verbindungen sind massen- und NMR-spektroskopisch und - soweit rein isolierbar - analytisch charakterisiert.
    Additional Material: 2 Tab.
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  • 3
    Publication Date: 1984-04-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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