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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 119 (1986), S. 338-348 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Boron, 166. NMR and He(I) PE Spectroscopic Studies on Diisopropyl- and Di-tert-butylboranesNMR data (1H, 11B, 13C, 14N) of a series of diisopropyl- and di-tert-butylboranes indicate that the former correspond favourably with dimethyl- and diethylboranes. Steric effects, therefore, are not very pronounced. However, di-tert-butyl(diorganylamino)boranes deviate from a planar C2BNC2 conformation; the more bulky the R2N group the stronger is the deviation, approaching an orthogonal conformation. He(I) photoelectron spectra confirm the conclusions drawn from NMR data.
    Notes: Die kernresonanzspektroskopischen Daten (1H, 11B, 13C, 14N) einer Reihe von Diisopropyl- und Di-tert-butylboranen belegen, daß erstere mehr den Dimethyl- und Diethylboranen entsprechen, sterische Effekte somit nur einen geringen Einfluß haben. Diese kommen hingegen bei Di-tert-butyl(diorganylamino)boranen zum Tragen. Mit zunehmender Sperrigkeit der Amino-Gruppe wird eine orthogonale Einstellung der R2N-Gruppe zur C2BN-Ebene angestrebt. He(I)-PE-Spektren bestätigen die aus NMR-Daten abgeleiteten Folgerungen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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