ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Preparation and Structure of Bis(perfluoropinacolato)oxo (tetrahydrofuran)tungsten(VI) - A Fluoroalkoxide with Three Different Tungsten-Oxygen BondsThe title compound (2) is obtained in 24% yield from Li2[CF3)2C(O)C(O)(CF3)2]. THF (1) and WOCl4 in THF solution. Small amounts of 2 are also formed in the reaction of 1 with WCl6. The fluoroalkoxide 2 is characterized spectroscopically and by an X-ray structure determination.[CF3)2C(O)C(O)(CF3) 2]2WO(THF) (2) crystallizes monoclinic in the space group P21/c with four formula units in the unit cell. (Lattice constants: a = 11.608(5) Å, b = 11.060(4) Å, c = 20.362(9) Å, β = 90.66(4)°. 2 contains three different tungsten-oxygen bonds.
Notes:
Die Titelverbindung (2) wird aus Li2[CF3)2C(O)C(O)(CF3)2] THF (1) und WOCl4 in THF in 24% Ausbeute erhalten. Geringe Mengen 2 entstehen auch bei der Umsetzung von 1 mit WCl6. Das Fluoralkoxid 2 wird spektroskopisch und durch eine Röntgenstrukturanalyse charakterisiert. [(CF3)2C(O)C(O)(CF3)2]2WO(THF), 2, kristallisiert monoklin in der Raumgruppe P21/c mit vier Formeleinheiten pro Elementarzelle, (Gitterkonstanten a = 11,608(5) Å, b = 11,060(4) Å, c = 20,362(9) Å, β = 90,66(4)°. In 2 sind drei unterschiedliche Wolfram-Sauerstoff-Bindungen verwirklicht.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19885650112
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