ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
[(C6H5)3P]2Ni(Me3Si—C≡C—SiMe3). Preparation, Properties, and Structure of the First Stable Nickel(0) Complex with Bis(trimethylsilyl)acetyleneThe title compound is the first example of a nickel(0) complex with bis(trimethylsilyl)acetylene and obtained from (ph3P)2Ni(C2H4) and bis(trimethylsilyl)acetylene in tetrahydrofuran. The complex is characterized by some reactions, the i.r. spectrum and by a structural analysis with the aid of X-ray diffraction data. (ph3P)2Ni(Me3Si—C≡C—SiMe3) crystallizes monoclinic in the space group C2/c with four formula units per unit cell (2468 observed, independent reflexions, R = 0.038). The cell dimensions are a = 20.927, b = 13.812, c = 14.238 Å, α = γ = 90°, β = 91.02°. The molecules are monomer in crystalls. The molecule is planar with ligands arranged trigonally about the central atome but distorted to the tetrahedral complex.
Notes:
Die Titelverbindung ist das erste Beispiel für einen Nickel(0)-Komplex des Bis-trimethylsilylacetylen und wird aus (ph3P)2Ni(C2H4) und dem Alkin in Tetrahydrofuran erhalten. Der Komplex wird durch Reaktionen, das IR-Spektrum und mittels einer Röntgenstrukturanalyse charakterisiert. (ph3P)2Ni(Me3Si—C≡C—SiMe3) kristallisiert monoklin in der Raumgruppe C2/c mit vier Formeleinheiten pro Elementarzelle (2468 unabhängige, beobachtete Reflexe, R = 0,038). Die Gitterabmessungen sind a = 20,927 Å, b = 13,812 Å, c = 14,238 Å, α = γ = 90°, β = 91,02°. Die Moleküle liegen im Kristall monomer vor. Das Zentralatom ist trigonal-planar koordiniert, aber in Richtung eines Tetraeders verzerrt.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19875500719
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