Bis(bicyclo­[2.2.1]hept-5-ene-2-carboxyl­ato)-1κ2O,O′;4κ2O,O′-di-μ2-chlorido-1:2κ2Cl;3:4κ2Cl-octa­methyl-1κ2C,2κ2C,3κ2C,4κ2C-di-μ3-oxido-1:2:3κ3O;2:3:4κ3O-tetra­tin(IV)

Ren, Y.

doi:10.1107/S1600536811023452

Volume 67
Part 7
Page m984
July 2011

Received 6 June 2011
Accepted 16 June 2011
Online 25 June 2011

Key indicators
Single-crystal X-ray study
T = 298 K
Mean (C-C) = 0.030 Å
R = 0.047
wR = 0.130
Data-to-parameter ratio = 17.9
Details

Bis(bicyclo[2.2.1]hept-5-ene-2-carboxylato)-1²O,O';4²O,O'-di-₂-chlorido-1:2²Cl;3:4²Cl-octamethyl-1²C,2²C,3²C,4²C-di-₃-oxido-1:2:3³O;2:3:4³O-tetratin(IV)

Yupo Ren ^a ^*

^aDepartment of Pathology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, People's Republic of China
Correspondence e-mail: lh198854@163.com

In the title compound, [Sn₄(CH₃)₈(C₈H₉O₂)₂Cl₂O₂], the tetranuclear complex molecule has crystallographically imposed inversion symmetry. The coordination polyhedron about the two central Sn atoms is distorted trigonal-bipyramidal, whilst the two peripheral metal atoms bonded to the carboxylate groups have a distorted octahedral coordination geometry. In the crystal, molecules are connected by long SnO contacts [3.139 (11) Å], forming chains along [011].

Related literature

For the biological activity of organotin compounds, see: Dubey & Roy (2003). For a related structure, see: Li et al. (2006).

Experimental

Crystal data

[Sn₄(CH₃)₈(C₈H₉O₂)₂Cl₂O₂]
M_r = 972.24
Triclinic, $[P \overline 1]$
a = 9.3685 (12) Å
b = 9.8651 (13) Å
c = 9.9103 (15) Å
= 109.779 (2)°
= 96.340 (1)°
= 97.204 (1)°
V = 843.5 (2) Å³
Z = 1
Mo K radiation
= 3.12 mm^-1
T = 298 K
0.13 × 0.11 × 0.05 mm

Data collection

Siemens SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) T_min = 0.687, T_max = 0.860
4366 measured reflections
2915 independent reflections
1818 reflections with I > 2(I)
R_int = 0.024

Refinement

R[F² > 2(F²)] = 0.047
wR(F²) = 0.130
S = 1.02
2915 reflections
163 parameters
H-atom parameters constrained
_max = 0.86 e Å^-3
_min = -0.64 e Å^-3

Data collection: SMART (Siemens, 1996); cell refinement: SAINT (Siemens, 1996); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RZ2611 ).

Acknowledgements

The author thanks the National Natural Science Foundation of China (20971096) for financial support.

References

Dubey, S. K. & Roy, U. (2003). Appl. Organomet. Chem. 17, 3-8.
Li, F.-H., Yin, H.-D., Sun, L., Zhao, Q. & Liu, W.-L. (2006). Acta Cryst. E62, m1117-m1118.
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.

metal-organic compounds

Bis(bicyclo[2.2.1]hept-5-ene-2-carboxylato)-12O,O';42O,O'-di-2-chlorido-1:22Cl;3:42Cl-octamethyl-12C,22C,32C,42C-di-3-oxido-1:2:33O;2:3:43O-tetratin(IV)