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  • 11
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 503 (1983), S. 224-230 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Spectroscopic Properties of Alkoxyaminosilanes (RO)nMe3-nSiNHC6H4XBy reaction of chlorosilanes with anilines and aminolysis of silylamines 22 new alkoxyaminosilanes of general formula (RO)nMe3-nSiNHC6H4X, n = 0, 1, 2, 3 have been prepared. Their IR und 1H-NMR spectra were measured and the influence of variabel polarizability effects of the (RO)nMe3-nSi groups on the Hammett's correlations of Δv and δ of the N—H proton were discussed.
    Notes: Durch Reaktion von Chlorsilanen mit Anilin-Derivaten und durch Umaminierung von Silylaminen wurden Alkoxyaminosilane der Reihen (RO)nMe3-nSiNHC6H4X, n = 0, 1, 2, 3, darunter 22 neue Verbindungen, erhalten. Ihre IR- und 1H-NMR-Spektren wurden vermessen, die N—H-Aciditäten ermittelt und der Einfluß der variablen Polarisierbarkeitseffekte der (RO)nMe3-nSi-Gruppierung auf die Hammettschen Beziehungen von Δv und δ der N—H-Protonen diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 511 (1984), S. 219-224 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 29Si-NMR Chemical Shift of Compounds with Four Electronegative Substituents at SiliconThe influence of the d-orbitals of IIIrd row elements and also the inductive and steric effects of the organoxy groups on the 29Si-NMR chemical shift of compounds with four electronegative substituents attached to silicon wer evaluated. A bridging effect on the transmission of the inductive effects over the oxygen atom which is bonded with silicon was stated.
    Notes: Der Einfluß der d-Orbitale von Elementen der III. Periode wie auch die induktive und sterische Wirkung der Organoxygruppen auf die 29Si-NMR-chemische Verschiebung bei Verbindungen mit vier elektronegativen Substituenten am Silicium wurden ermittelt. Ein Brückeneffekt bei der übertragung von induktiven Effekten über das mit Si gebundene O-Atom wurde festgestellt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 13
    ISSN: 0044-2313
    Keywords: [η2-{tBu2P—P=PtBu2} PtBr(PPh3)] ; crystal structure ; 1H-, 13C-, 31P-NMR spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Coordination Chemistry of P-rich Phosphanes and Silylphosphanes. XIII [1]. [η2-{tBu2P—P=PtBu2} PtBr(PPh3)][η2-{tBu2P—P=PtBu2} PtBr(PPh3)] 1 is the first transition metal complex compound resulting from a phosphino-phosphinidene-phosphorane. The yellow crystals of 1 (fp. 201-203°C, decomp.) were obtained by reacting tBu2P—P=P(Br)tBu2 with either (Ph3P)2Pt · C2H4, or with Pt(PPh3)4, resp. Compound 1 crystallizes triclinic in the space group P1 (no. 2) with a = 1076.80(8) pm, b = 1344.61(8) pm, c = 1381.16(9) pm, α = 81.773(6)°, β; = 85,110(8), γ = 88,776(7).
    Notes: [η2-{tBu2P—P=PtBu2} PtBr(PPh3)] 1 ist die erste Komplexverbindung aus einem Phosphino-phosphiniden-phosphoran. Die gelben Kristalle von 1, Smp. 201-203°C (unter Zersetzung) bilden sich bei der Umsetzung von tBu2P—P=P(Br)tBu2 mit (Ph3P)2Pt · C2H4 oder Pt(PPh3)4. 1 kristallisiert triklin in P1 (Nr. 2) mit a = 1076,80(8) pm, b = 1344,61(8) pm, c = 1381,16(9) pm, α = 81,773(6)°, β; = 85,110(8)°, γ = 88,776(7).
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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