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Volume 66 
Part 11 
Page m1494  
November 2010  

Received 21 October 2010
Accepted 26 October 2010
Online 31 October 2010

[cv2781sup1]
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Key indicators
Single-crystal X-ray study
T = 200 K
Mean [sigma](C-C) = 0.002 Å
R = 0.026
wR = 0.065
Data-to-parameter ratio = 19.4
Details
Open access

[Bis(diphenylphosphanyl)dimethylsilane-[kappa]2P,P']tetracarbonylchromium(0)

Normen Peulecke,a* Stephan Peitz,a Bernd H. Müller,a Anke Spannenberga and Uwe Rosenthala

aLeibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
Correspondence e-mail: normen.peulecke@catalysis.de

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)°.

Related literature

For the synthesis of Ph2PSiMe2PPh2, see: Hassler & Seidl (1988[Hassler, K. & Seidl, S. (1988). Monatsh. Chem. 119, 1241-1244.]). 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[Chen, T., Jackson, J., Jasper, S. A., Duesler, E. N., Nöth, H. & Paine, R. T. (1999). J. Organomet. Chem. 582, 25-31.]) and Sheldrick & Borkenstein (1977[Sheldrick, W. S. & Borkenstein, A. (1977). Acta Cryst. B33, 2916-2918.]), respectively.

[Scheme 1]

Experimental

Crystal data

  • [Cr(C26H26P2Si)(CO)4]

  • Mr = 592.54

  • Monoclinic, P 21 /c

  • a = 13.7832 (4) Å

  • b = 11.9204 (2) Å

  • c = 18.1329 (5) Å

  • [beta] = 102.073 (2)°

  • V = 2913.36 (13) Å3

  • Z = 4

  • Mo K[alpha] radiation

  • [mu] = 0.58 mm-1

  • T = 200 K

  • 0.45 × 0.40 × 0.38 mm
Data collection

  • Stoe IPDS II diffractometer

  • Absorption correction: numerical (X-SHAPE and X-RED32; Stoe & Cie, 2005[Stoe & Cie (2005). X-SHAPE, X-RED32 and X-AREA. Stoe & Cie, Darmstadt, Germany.]) Tmin = 0.773, Tmax = 0.867

  • 47168 measured reflections

  • 6688 independent reflections

  • 5370 reflections with I > 2[sigma](I)

  • Rint = 0.032
Refinement

  • R[F2 > 2[sigma](F2)] = 0.026

  • wR(F2) = 0.065

  • S = 0.93

  • 6688 reflections

  • 345 parameters

  • 6 restraints

  • H-atom parameters constrained

  • [Delta][rho]max = 0.32 e Å-3

  • [Delta][rho]min = -0.33 e Å-3

Data collection: X-AREA (Stoe & Cie, 2005[Stoe & Cie (2005). X-SHAPE, X-RED32 and X-AREA. Stoe & Cie, Darmstadt, Germany.]); cell refinement: X-AREA; data reduction: X-AREA; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: XP in SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXL97.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: CV2781 ).

Acknowledgements

This work was supported by the Leibniz-Institut für Katalyse e. V. an der Universität Rostock.

References

Chen, T., Jackson, J., Jasper, S. A., Duesler, E. N., Nöth, H. & Paine, R. T. (1999). J. Organomet. Chem. 582, 25-31.  [CrossRef] [ChemPort]
Hassler, K. & Seidl, S. (1988). Monatsh. Chem. 119, 1241-1244.  [CrossRef] [ChemPort]
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]
Sheldrick, W. S. & Borkenstein, A. (1977). Acta Cryst. B33, 2916-2918.  [CrossRef] [details]
Stoe & Cie (2005). X-SHAPE, X-RED32 and X-AREA. Stoe & Cie, Darmstadt, Germany.

Acta Cryst (2010). E66, m1494  [ doi:10.1107/S1600536810043679 ]

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