trans-Dichloridobis{dicyclo­hex­yl[4-(dimethyl­amino)­phen­yl]phosphane-κP}platinum(II) dichloro­methane disolvate

Davis, W.L.; Meijboom, R.

doi:10.1107/S1600536812048465

Volume 68
Part 12
Page m1561
December 2012

Received 6 November 2012
Accepted 26 November 2012
Online 30 November 2012

Key indicators
Single-crystal X-ray study
T = 100 K
Mean (C-C) = 0.004 Å
R = 0.025
wR = 0.067
Data-to-parameter ratio = 17.4
Details

trans-Dichloridobis{dicyclohexyl[4-(dimethylamino)phenyl]phosphane-P}platinum(II) dichloromethane disolvate

Wade L. Davis ^a and Reinout Meijboom ^a ^*

^aResearch Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg (APK Campus), PO Box 524, Auckland Park, Johannesburg, 2006, South Africa
Correspondence e-mail: rmeijboom@uj.ac.za

In the title complex, trans-[PtCl₂{P(C₆H₁₁)₂(4-Me₂NC₆H₄)}₂]·2CH₂Cl₂, the Pt^II atom is located on an inversion centre, resulting in a trans-square-planar geometry. Important geometric parameters are the Pt-P and Pt-Cl bond lengths of 2.3258 (6) and 2.3106 (6) Å, respectively, and the P-Pt-Cl angles of 89.64 (2) and 90.36 (2)°. The effective cone angle for the dicyclohexyl[4-(dimethylamino)phenyl]phosphane unit was calculated to be 164°. The compound crystallizes with two dichloromethane solvent molecules; one of which is severely disordered and was treated using the SQUEEZE routine in PLATON [Spek (2009). Acta Cryst. D65, 148-155].

Related literature

For a review on related compounds, see: Spessard & Miessler (1996). For related compounds, see: Johansson et al. (2002). For similar R-P₂PtCl₂ compounds, see: Lutz et al. (2005). For the synthesis of starting materials, see: Drew & Doyle (1990). For use of the SQUEEZE routine in PLATON to remove the contribution of disordered solvents, see: Spek (2009). For background to cone angles, see: Tolman (1977); Otto (2001).

Experimental

Crystal data

[PtCl₂(C₂₀H₃₂NP)₂]·2CH₂Cl₂
M_r = 1070.70
Monoclinic, C 2/c
a = 19.4146 (9) Å
b = 13.1517 (6) Å
c = 19.3459 (9) Å
= 94.660 (2)°
V = 4923.4 (4) Å³
Z = 4
Cu K radiation
= 9.16 mm^-1
T = 100 K
0.26 × 0.24 × 0.16 mm

Data collection

Bruker APEX DUO 4K CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2008) T_min = 0.199, T_max = 0.322
56178 measured reflections
4239 independent reflections
4069 reflections with I > 2(I)
R_int = 0.045

Refinement

R[F² > 2(F²)] = 0.025
wR(F²) = 0.067
S = 1.08
4239 reflections
244 parameters
H-atom parameters constrained
_max = 1.72 e Å^-3
_min = -1.15 e Å^-3

Data collection: APEX2 (Bruker, 2010); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT and XPREP (Bruker, 2008); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: publCIF (Westrip, 2010) and WinGX (Farrugia, 2012).

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SU2526 ).

Acknowledgements

Financial assistance from the Research Fund of the University of Johannesburg and SASOL is gratefully acknowledged. A. Muller is acknowledged for the data collection.

References

Altomare, A., Burla, M. C., Camalli, M., Cascarano, G. L., Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. & Spagna, R. (1999). J. Appl. Cryst. 32, 115-119.
Brandenburg, K. & Putz, H. (2005). DIAMOND. Crystal Impact GbR, Bonn, Germany.
Bruker (2008). SADABS, SAINT and XPREP. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2010). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA.
Drew, D. & Doyle, J. R. (1990). Inorg. Synth. 28, 346-349.
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.
Johansson, M. H., Otto, S. & Oskarsson, Å. (2002). Acta Cryst. B58, 244-250.
Lutz, M., Spek, A. L., Kreiter, R., Klein Gebbink, R. J. M. & Koten, G. (2005). Acta Cryst. E61, m2728-m2729.
Otto, S. (2001). Acta Cryst. C57, 793-795.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
Spessard, G. O. & Miessler, G. L. (1996). Organometallic Chemistry, pp. 131-135. Upper Saddle River, New Jersey, USA: Prentice Hall.
Tolman, C. A. (1977). Chem. Rev. 77, 313-348.
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.