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Volume 65 
Part 4 
Page m405  
April 2009  

Received 9 March 2009
Accepted 10 March 2009
Online 14 March 2009

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Key indicators
Single-crystal X-ray study
T = 213 K
Mean [sigma](N-C) = 0.007 Å
R = 0.056
wR = 0.118
Data-to-parameter ratio = 19.5
Details
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[[mu]-Bis(trimethylsilyl)amido]bis[[mu]-N,N-dimethyl-N',N''-bis(trimethylsilyl)guanidinato]-triangulo-tricopper(I)

Donglong Guo,a Xiaoli Qiao,b Hong-Bo Tongb and Meisu Zhoub*

aSchool of Life Science and Technology, Shanxi University, Taiyuan 030006, People's Republic of China, and bInstitute of Applied Chemistry, Shanxi University, Taiyuan 030006, People's Republic of China
Correspondence e-mail: mszhou@sxu.edu.cn

The title compound, [Cu3(C6H18NSi2)(C9H24N3Si2)2], is a trinuclear CuI complex. A crystallographic twofold axis passes through one CuI atom and the N atom of the bis(trimethylsilyl)amide ligand that bridges between the other two CuI atoms. The Cu-Cu bonds bridged by the guanadinate ligands [2.7913 (9) Å] are slightly longer than the Cu-Cu bond bridged by the bis(trimethylsilyl)amide ligand [2.6405 (11) Å].

Related literature

For background literature concerning the coordination chemistry of guanidinates, see: Chandra et al. (1970[Chandra, G., Jenkins, A. D., Lappert, M. F. & Srivastava, R. C. (1970). J. Chem. Soc. A, pp. 2550-2558.]); Barker & Kilner (1994[Barker, J. & Kilner, M. (1994). Coord. Chem. Rev. 133, 219-300.]); Edelmann (1994[Edelmann, F. T. (1994). Coord. Chem. Rev. 137, 403-481.]); Bailey & Pace (2001[Bailey, P. J. & Pace, S. (2001). Coord. Chem. Rev. 214, 91-141.]); Zhou et al. (2007[Zhou, M.-S., Tong, H.-B., Wei, X.-H. & Liu, D.-S. (2007). J. Organomet. Chem. 692, 5195-5202.]).

[Scheme 1]

Experimental

Crystal data

  • [Cu3(C6H18NSi2)(C9H24N3Si2)2]

  • Mr = 812.00

  • Monoclinic, C 2/c

  • a = 16.445 (3) Å

  • b = 18.653 (4) Å

  • c = 14.046 (3) Å

  • [beta] = 96.943 (3)°

  • V = 4277.1 (15) Å3

  • Z = 4

  • Mo K[alpha] radiation

  • [mu] = 1.67 mm-1

  • T = 213 K

  • 0.30 × 0.20 × 0.20 mm
Data collection

  • Siemens SMART CCD diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 1997[Sheldrick, G. M. (1997). SADABS. University of Göttingen, Germany.]) Tmin = 0.622, Tmax = 0.717

  • 8714 measured reflections

  • 3773 independent reflections

  • 3394 reflections with I > 2[sigma](I)

  • Rint = 0.033
Refinement

  • R[F2 > 2[sigma](F2)] = 0.056

  • wR(F2) = 0.118

  • S = 1.26

  • 3773 reflections

  • 193 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.57 e Å-3

  • [Delta][rho]min = -0.46 e Å-3

Data collection: SMART (Siemens, 1996[Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Siemens, 1996[Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; 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: ORTEP-3 (Farrugia, 1997[Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.]); software used to prepare material for publication: SHELXL97.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BI2357 ).

Acknowledgements

The authors thank the Natural Science Foundation of China (grant No. 20672070; M. Zhou), the Natural Science Foundation of Shanxi (grant No. 2007011020) and the Foundation for Returned Overseas Chinese Scholars of Shanxi Province (2006; M. Zhou).

References

Bailey, P. J. & Pace, S. (2001). Coord. Chem. Rev. 214, 91-141.  [ISI] [CrossRef] [ChemPort]
Barker, J. & Kilner, M. (1994). Coord. Chem. Rev. 133, 219-300.  [CrossRef] [ChemPort] [ISI]
Chandra, G., Jenkins, A. D., Lappert, M. F. & Srivastava, R. C. (1970). J. Chem. Soc. A, pp. 2550-2558.
Edelmann, F. T. (1994). Coord. Chem. Rev. 137, 403-481.  [CrossRef] [ISI]
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.  [CrossRef] [details]
Sheldrick, G. M. (1997). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]
Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.
Zhou, M.-S., Tong, H.-B., Wei, X.-H. & Liu, D.-S. (2007). J. Organomet. Chem. 692, 5195-5202.  [CSD] [CrossRef] [ChemPort]

Acta Cryst (2009). E65, m405  [ doi:10.1107/S1600536809008745 ]

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