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  • 1960-1964  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 310 (1961), S. 320-326 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The RAMAN and infrared spectra of H(CH3)2SiCl, C6H5(CH3)2SiCl, H(CH3)2SiNHSi(CH3)2H, C6H5(CH3)2SiNHSi(CH3)2C6H5 and the infrared spectra of Br(CH3)2SiNHSi(CH3)2Br und Cl(CH3)2SiNHSi(CH3)2Cl are reported and the frequencies assigned as far as possible. The SiNSi-valence frequencies and the approximate force constants of the silazanbonds show an increasing bonding strength with ascending electronegativities of the substituents. It is very probable that this strengthening is caused by amounting pπ-dπe bonds.
    Notes: Die RAMAN- und IR-Spektren von H(CH3)2SiCl, C6H5(CH3)2SiCl, H(CH3)2SiNHSi(CH3)2H, C6H5(CH3)2SiNHSi(CH3)2C6H5 und die IR-Spektren von Br(CH3)2SiNHSi(CH3)2Br und Cl(CH3)2SiNHSi(CH3)2Cl werden mitgeteilt und die Frequenzen so weit wie möglich zugeordnet. Die SiNSi-Valenzschwingungen und aus ihnen berechnete angenäherte Kraftkonstanten für die Silazanbindungen zeigen, daß diese Bindung mit steigender Elektronegativität der Substituenten stärker wird. Dies ist sehr wahrscheinlich auf verstärkte pπ-dπ-Bindungsanteile zurückzuführen.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 310 (1961), S. 100-109 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and properties of the compounds X(CH3)2SiNHSi(CH3)2X (X = H, C6H5, Cl, and Br) are described. The products of hydrolysis and the relative rate of hydrolysis  -  including that of (CH3)3SiNHSi(CH3)3  -  are studied. The results are discussed regarding bond properties and steric effects.
    Notes: Darstellung und Eigenschaften der Tetramethyldisilazane X(CH3)2SiNHSi(CH3)2X mit X = H, C6H5, Cl und Br werden beschrieben. Insbesondere wurden die Hydrolyseprodukte dieser Stoffe und die relative Hydrolysegeschwindigkeit einschließlich der des (CH3)3SiNHSi(CH3)3 näher studiert. Die Ergebnisse werden in bindungstheoretischer Hinsicht diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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