Tetra-n-butyl­ammonium bis­(1,1-dicyano­ethyl­ene-2,2-dithiol­ato)platinum(II)

Kanganga, N.; Mann, K.R.; Janzen, D.E.

doi:10.1107/S1600536808036726

Volume 64
Part 12
Page m1552
December 2008

Received 7 October 2008
Accepted 7 November 2008
Online 13 November 2008

Key indicators
Single-crystal X-ray study
T = 173 K
Mean (C-C) = 0.006 Å
R = 0.027
wR = 0.077
Data-to-parameter ratio = 17.3
Details

Tetra-n-butylammonium bis(1,1-dicyanoethylene-2,2-dithiolato)platinum(II)

Nyasha Kanganga,^a Kent R. Mann ^b and Daron E. Janzen ^a ^*

^aCollege of St Catherine, St Paul, Minnesota 55105, USA, and ^bDepartment of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA
Correspondence e-mail: dejanzen@stkate.edu

In the title compound, (C₁₆H₃₆N)₂[Pt(C₄N₂S₂)₂], the Pt^II center adopts a distorted square-planar geometry due to the 4-membered chelate rings formed by coordination to the S atoms of the 1,1-dicyanoethylene-2,2-dithiolate (i-mnt) ligands [bite angle 74.35 (4)°]. The bond distances in the coordinated i-mnt ligands indicate some delocalization of the [pi] -system.

Related literature

For general background on the salts of metal complexes of [Pt(i-mnt)₂]^2- (i-mnt=1,1-dicyanoethylene-2,2-dithiolate), see: Cummings & Eisenberg (1996); Fackler & Coucouvanis (1966); Werden et al. (1966). For related structures, see: Gao et al. (2005, 2006); Hummel (1987); Li et al. (2004); Sun et al. (2006).

Experimental

Crystal data

(C₁₆H₃₆N)₂[Pt(C₄N₂S₂)₂]
M_r = 960.40
Monoclinic, P 2₁ /n
a = 9.8687 (6) Å
b = 16.9556 (11) Å
c = 13.8274 (9) Å
= 92.840 (1)°
V = 2310.9 (3) Å³
Z = 2
Mo K radiation
= 3.25 mm^-1
T = 173 (2) K
0.40 × 0.20 × 0.15 mm

Data collection

Bruker SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker 2003) T_min = 0.468, T_max = 0.612
22256 measured reflections
4087 independent reflections
3226 reflections with I > 2(I)
R_int = 0.033

Refinement

R[F² > 2(F²)] = 0.027
wR(F²) = 0.077
S = 1.09
4087 reflections
236 parameters
H-atom parameters constrained
_max = 1.02 e Å^-3
_min = -0.33 e Å^-3

Data collection: SMART (Bruker,2003); cell refinement: SAINT (Bruker, 2006); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: PK2127 ).

Acknowledgements

This work was supported by funding from the NSF through a Research Site for Educators in Chemistry grant. The authors acknowledge Victor G. Young, Jr and the X-ray Crystallographic Laboratory in the Department of Chemistry at the University of Minnesota.

References

Bruker (2003). SMART and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2006). SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Cummings, S. D. & Eisenberg, R. (1996). Inorg. Chim. Acta, 242, 225-231.
Fackler, J. P. & Coucouvanis, D. (1966). J. Am. Chem. Soc. 88, 3913-3920.
Gao, X.-K., Dou, J.-M., Li, D.-C., Dong, F.-Y. & Wang, D.-Q. (2005). J. Incl. Phen. Macro. Chem. 53, 111-119.
Gao, X.-K., Dou, J.-M., Li, D.-C., Dong, F.-Y. & Wang, D.-Q. (2006). J. Mol. Struct. 733, 181-186.
Hummel, H.-U. (1987). Transition Met. Chem. 12, 172-174.
Li, B., Li, D.-C., Dong, F.-Y., Dou, J.-M. & Wang, D.-Q. (2004). Z. Kristallogr. 219, 413-414.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Sun, Y.-M., Dong, F.-Y., Dou, J.-M., Li, D.-C., Gao, X.-K. & Wang, D.-Q. (2006). J. Inorg. Organomet. Poly. Mater. 16, 61-67.
Werden, B. G., Billig, E. & Gray, H. B. (1966). Inorg. Chem. 5, 78-81.

metal-organic compounds