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  • 1980-1984  (6)
  • Inorganic Chemistry  (3)
  • Polymer and Materials Science  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 488 (1982), S. 75-79 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 2,4,6-Tris(tert.butyl)phenyl Substituted PhosphinesTris(tert.butyl)phenyl-lithium reacts with PCl3 to give 2,4,6-tris(tert.butyl)phenyldihalogenophosphine which is reduced by LiAlH4 yielding 2,4,6-tris(tert.butyl)phenylphosphine. The same reaction by using (CH3)3Si—CH2—PCl2 leads to 2,4,6-tris(tert.butyl)phenyl-trimethylsilylmethylhalogenophosphine. Thermal treatment of this compound results under elimination of HCl and (CH3)3SiCl in the formation of . The nmr data of the compounds synthesized are discussed.
    Notes: Tris(tert.butyl)phenyl-lithium reagiert mit PCl3 oder (CH3)3Si—CH2—PCl2 zum 2,4,6-Tris(tert.butyl)phenyl-dihalogenphosphin bzw. entsprechenden -trimethylsilylmethylhalogenphosphin. Während sich ersteres mit LiAlH4 in das 2,4,6-Tris(tert.butyl)phenylphosphin überführen läßt, liefert letzteres durch thermische Beanspruchung nach Abspalten von HCl bzw. (CH3)3SiCl die Phosphine mit zweifach koordiniertem Phosphor. Die 1H- sowie 31P-NMR-Daten der dargestellten Verbindungen werden diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 473 (1981), S. 85-90 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Carbosilylated phospha-alkenesLithium-tris-trimethylsilylmethanide, (Me3Si)3C-Li, reacts with various organodichlorophosphines to give tris-(trimethylsilyl)-methyl-organochlorophosphines, the termal treatment of which under elimination of trimethylchlorosilane results in formation of the title compounds of the general formula B.NMR-data as well as the synthesis of compounds A and B will be discussed.
    Notes: Lithium-tris-trimethylsilylmethanid, (Me3Si)3C-Li, reagiert mit verschieden substituierten Organyldichlorphosphinen zur Tris-Trimethylsilylmethyl-organylchlorphosphinen A, deren thermische Beanspruchung unter Abspaltung von Trimethylchlorsilan zu den Titelverbindungen der allgemeinen Formel B führt.Die NMR-spektroskopischen Daten der Verbindungen des Typs A und B sowie deren Synthese wer-den diskntiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 495 (1982), S. 115-119 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Alkali Phosphorus Compounds and their Reactivity. 79. NMR Investigations of Alkali Organophosphides. IThe 31C and 31P NMR spectra display a further separation of ion-pairs of alkali-organophosphides in THF solution after addition of cryptandes . An exception presents LiP(Ph)2, T1—13C-NMR measurements suggest a tetrameric structure in THF.
    Notes: Anhand der 13C- und 31P-NMR-Daten läßt sich zeigen, daß sich die Ionenpaare der Alkali-organophosphide in THF durch Zugabe von Kryptanden entsprechend weiter trennen lassen. Eine Ausnahme bildet LiP(Ph)2, das aufgrund von T1—13C-NMR-Messungen eine tetramere Struktur in THF aufweist.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Basel : Wiley-Blackwell
    Die Makromolekulare Chemie, Rapid Communications 3 (1982), S. 745-751 
    ISSN: 0173-2803
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 34 (1983), S. 328-331 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: 2,2′-azo-bis-isobutyronitrile was completely thermally decomposed in allyl benzene. The reaction mixture obtained was separated by preparative gas and thin-layer chromatography. Using steam pressure measurements and the logarithmic dependence of gas chromatographic retention value of the molecular weight the molecular weight of the separated components was investigated. The structure was analysed by IR- and NMR-spectroscopy and 14C-labelled tracer substances. A mechanism of the reactions is discussed.
    Notes: 2,2′-Azo-bis-isobutyronitril wurde in Allylbenzen thermisch vollständig zersetzt. Das entstehende Reaktionsgemisch konnte mit Hilfe der präparativen Gas- und Dünnschichtchromatographie getrennt werden. Die Bestimmung der Molmassen der abgetrennten Komponenten erfolgte über Dampfdruckmessungen sowie über die logarithmische Abhängigkeit der gaschromatographischen Retentionswerte von den Molmassen. Die Konstitutions- und Konfigurationsaufklärung gelang mittels IR- und NMR-Spektroskopie sowie durch Anwendung von 14C-markierten Tracer-Substanzen. Ein möglicher Reaktionsablauf wird diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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