Received 21 October 2010
The title compound, [Cr(C26H26P2Si)(CO)4], was obtained by the reaction of Ph2PSiMe2PPh2 with Cr(CO)6 in refluxing toluene by ligand exchange. The CrC4P2 coordination geometry at the Cr atom is distorted octahedral, with a P-Cr-P bite angle of 80.27 (1)°.
For the synthesis of Ph2PSiMe2PPh2, see: Hassler & Seidl (1988). The molecular and crystal structures of the tetracarbonyl tungsten complex of [(iPr2N)2BP(H)]2SiMe2 and the tetracarbonyl molybdenum complex of (PhPHSiMe2)2 were presented by Chen et al. (1999) and Sheldrick & Borkenstein (1977), respectively.
Data collection: X-AREA (Stoe & Cie, 2005); cell refinement: X-AREA; data reduction: X-AREA; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: CV2781 ).
This work was supported by the Leibniz-Institut für Katalyse e. V. an der Universität Rostock.
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Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Sheldrick, W. S. & Borkenstein, A. (1977). Acta Cryst. B33, 2916-2918.
Stoe & Cie (2005). X-SHAPE, X-RED32 and X-AREA. Stoe & Cie, Darmstadt, Germany.