Di-μ-chlorido-bis[chloridobis(dimethyl sulfoxide-κO)tin(II)]

Barbul, I.; Varga, R.A.; Silvestru, C.

doi:10.1107/S1600536811009895

Volume 67
Part 4
Page m486
April 2011

Received 3 March 2011
Accepted 16 March 2011
Online 26 March 2011

Key indicators
Single-crystal X-ray study
T = 297 K
Mean (S-C) = 0.009 Å
R = 0.050
wR = 0.097
Data-to-parameter ratio = 20.5
Details

Di--chlorido-bis[chloridobis(dimethyl sulfoxide-O)tin(II)]

Ioana Barbul,^a Richard A. Varga ^a ^* and Cristian Silvestru ^a

^aFaculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Arany Janos Str. No. 11, RO-400028 Cluj-Napoca, Romania
Correspondence e-mail: richy@chem.ubbcluj.ro

The structure of the title compound, [Sn₂Cl₄(C₂H₆OS)₄], contains dimers formed through weak SnCl [3.691 (2) Å] interactions, resulting in a planar Sn₂Cl₂ core with an inversion center at the centre of the four-membered ring. The Sn^II atoms are pentacoordinated and have a distorted octahedral [Psi] -SnCl₃O₂ coordination geometry. The O atoms from the dimethyl sulfoxide molecules occupy trans positions, while the Cl atoms exhibit a meridional arrangement.

Related literature

For related tin chlorides, see: Kisenyi et al. (1985); Kiriyama et al. (1973). For the structure of free DMSO, see: Viswamitra & Kannan (1966).

Experimental

Crystal data

[Sn₂Cl₄(C₂H₆OS)₄]
M_r = 691.70
Monoclinic, P 2₁ /c
a = 11.1449 (17) Å
b = 13.349 (2) Å
c = 8.4394 (13) Å
= 103.728 (2)°
V = 1219.7 (3) Å³
Z = 2
Mo K radiation
= 2.84 mm^-1
T = 297 K
0.28 × 0.25 × 0.23 mm

Data collection

Bruker SMART APEX CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2000) T_min = 0.469, T_max = 0.523
8630 measured reflections
2148 independent reflections
1853 reflections with I > 2(I)
R_int = 0.062

Refinement

R[F² > 2(F²)] = 0.050
wR(F²) = 0.097
S = 1.18
2148 reflections
105 parameters
H-atom parameters constrained
_max = 0.57 e Å^-3
_min = -0.72 e Å^-3

Table 1
Selected geometric parameters (Å, °)

Cl1-Sn1	2.4767 (19)
Cl2-Sn1	2.4886 (19)
O1-Sn1	2.382 (5)
O2-Sn1	2.371 (5)

O2-Sn1-O1	166.36 (17)
O2-Sn1-Cl1	86.61 (13)
O1-Sn1-Cl1	85.99 (13)
O2-Sn1-Cl2	84.94 (14)
O1-Sn1-Cl2	84.15 (13)
Cl1-Sn1-Cl2	93.86 (7)

Data collection: SMART (Bruker, 2000); cell refinement: SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: VN2005 ).

Acknowledgements

We thank the National Centre for X-Ray Diffraction, Cluj-Napoca, for support of the X-ray structure determination.

References

Brandenburg, K. & Putz, H. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany.
Bruker (2000). SMART and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2001). SAINT-Plus. Bruker AXS Inc., Madison, Wisconsin, USA.
Kiriyama, H., Kitahama, K., Nakamura, O. & Kiriyama, R. (1973). Bull. Chem. Soc. Jpn, 46, 1389-1395.
Kisenyi, J. M., Willey, G. R. & Drew, M. G. B. (1985). Acta Cryst. C41, 700-702.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Viswamitra, M. A. & Kannan, K. (1966). Nature (London), 209, 1016-1017.
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.

metal-organic compounds