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Volume 69 
Part 11 
Pages m610-m611  
November 2013  

Received 8 October 2013
Accepted 11 October 2013
Online 19 October 2013

Key indicators
Single-crystal X-ray study
T = 150 K
Mean [sigma](C-C) = 0.002 Å
R = 0.021
wR = 0.059
Data-to-parameter ratio = 36.4
Details
Open access

Bis[4-(di­methyl­amino)­pyridinium] tetra­chlorido­cuprate(II)

aUnité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Faculté des Sciences Exactes, Université Constantine 1 25000, Constantine, Algeria, and bDépartement Sciences de la Matière, Faculté des Sciences Exactes et Sciences de la Nature et de la Vie, Université Oum El Bouaghi, Algeria
Correspondence e-mail: bouacida_sofiane@yahoo.fr

The asymmetric unit of the title salt, (C7H11N2)2[CuCl4], comprises half a tetrahedral tetra­chlorido­cuprate anion, being located on a twofold axis, and a protonated 4-(di­methyl­amino)­pyridine cation. The geometry around the CuII ion is highly distorted with the range of Cl-Cu-Cl angles being 94.94 (1)-141.03 (1)°. The crystal structure is stabilized by N-H...Cl and C-H...Cl hydrogen bonds. In the three-dimensional network, cations and anions pack in the lattice so as to generate chains of [CuCl4]2- anions separated by two orientations of cation layers, which are inter­locked through [pi]-[pi] stacking contacts between pairs of pyridine rings, with centroid-centroid distances of 3.7874 (7) Å.

Related literature

For general background to organic-inorganic systems, see: Bouacida (2008[Bouacida, S. (2008). PhD thesis, Montouri-Constantine University, Algeria.]). For related 4-di­methyl­amino­pyridinium metal(II) chloride salts, see: Khadri et al. (2013[Khadri, A., Bouchene, R., Bouacida, S., Merazig, H. & Roisnel, T. (2013). Acta Cryst. E69, m190.]). For the geometry of four-coordinated tetra­halocuprate(II) ions, see: Awwadi et al. (2007[Awwadi, F. F., Willett, R. D. & Twamly, B. (2007). Cryst. Growth Des. 7, 624-632.]); Choi et al. (2002[Choi, S.-N., Lee, Y.-M., Lee, H.-W., Kang, S. K. & Kim, Y.-I. (2002). Acta Cryst. E58, m583-m585.]); Diaz et al. (1999[Diaz, I., Fernandes, V., Belsky, V. K. & Martinez, J. L. (1999). Z. Naturforsch. Teil B, 54, 718-724.]); Haddad et al. (2006[Haddad, S. F., Aidamen, M. A. & Willett, R. D. (2006). Inorg. Chim. Acta, 359, 424-432.]); Harlow et al. (1975[Harlow, R. L., Wells, W. J., Watt, G. W. & Simonsen, S. H. (1975). Inorg. Chem. 14, 1786-1772.]); Marzotto et al. (2001[Marzotto, A., Clemente, D. A., Benetollo, F. & Valle, G. (2001). Polyhedron, 20, 171-177.]); Parent et al. (2007[Parent, A. R., Landee, C. P. & Turnbull, M. M. (2007). Inorg. Chim. Acta, 360, 1943-1953.]).

[Scheme 1]

Experimental

Crystal data
  • (C7H11N2)2[CuCl4]

  • Mr = 451.71

  • Monoclinic, C 2/c

  • a = 12.3750 (8) Å

  • b = 12.1901 (8) Å

  • c = 14.1713 (9) Å

  • [beta] = 115.023 (1)°

  • V = 1937.1 (2) Å3

  • Z = 4

  • Mo K[alpha] radiation

  • [mu] = 1.68 mm-1

  • T = 150 K

  • 0.13 × 0.12 × 0.10 mm

Data collection
  • Bruker APEXII CCD diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 2002[Sheldrick, G. M. (2002). SADABS. University of Göttingen, Germany.]) Tmin = 0.675, Tmax = 0.747

  • 12787 measured reflections

  • 3895 independent reflections

  • 3389 reflections with I > 2[sigma](I)

  • Rint = 0.017

Refinement
  • R[F2 > 2[sigma](F2)] = 0.021

  • wR(F2) = 0.059

  • S = 1.05

  • 3895 reflections

  • 107 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.55 e Å-3

  • [Delta][rho]min = -0.22 e Å-3

Table 1
Selected bond lengths (Å)

Cu1-Cl1 2.2487 (3)
Cu1-Cl2 2.2588 (3)

Table 2
Hydrogen-bond geometry (Å, °)

D-H...A D-H H...A D...A D-H...A
N2-H2...Cl1 0.86 2.55 3.2264 (11) 136
N2-H2...Cl2 0.86 2.55 3.2760 (10) 143
C2-H2A...Cl1i 0.93 2.67 3.5790 (11) 167
C5-H5...Cl2ii 0.93 2.80 3.6501 (11) 152
C11-H11B...Cl2iii 0.96 2.82 3.6850 (13) 150
Symmetry codes: (i) [x+{\script{1\over 2}}, y+{\script{1\over 2}}, z]; (ii) [x, -y, z-{\script{1\over 2}}]; (iii) [x+{\script{1\over 2}}, -y+{\script{1\over 2}}, z-{\script{1\over 2}}].

Data collection: APEX2 (Bruker, 2011[Bruker (2011). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2011[Bruker (2011). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SIR2002 (Burla et al., 2005[Burla, M. C., Caliandro, R., Camalli, M., Carrozzini, B., Cascarano, G. L., De Caro, L., Giacovazzo, C., Polidori, G. & Spagna, R. (2005). J. Appl. Cryst. 38, 381-388.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012[Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.]) and DIAMOND (Brandenburg & Berndt, 2001[Brandenburg, K. & Berndt, M. (2001). DIAMOND. Crystal Impact, Bonn, Germany.]); software used to prepare material for publication: WinGX (Farrugia, 2012[Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.]).


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BQ2389 ).


Acknowledgements

We are grateful to all personel of the LCATM laboratory, Université Oum El Bouaghi, Algeria, for their assistance. Thanks are due to the MESRS (Ministére de l'Enseignement Supérieur et de la Recherche Scientifique - Algérie) via the PNR programme for financial support.

References

Awwadi, F. F., Willett, R. D. & Twamly, B. (2007). Cryst. Growth Des. 7, 624-632.  [CSD] [CrossRef] [ChemPort]
Bouacida, S. (2008). PhD thesis, Montouri-Constantine University, Algeria.
Brandenburg, K. & Berndt, M. (2001). DIAMOND. Crystal Impact, Bonn, Germany.
Bruker (2011). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Burla, M. C., Caliandro, R., Camalli, M., Carrozzini, B., Cascarano, G. L., De Caro, L., Giacovazzo, C., Polidori, G. & Spagna, R. (2005). J. Appl. Cryst. 38, 381-388.  [Web of Science] [CrossRef] [ChemPort] [IUCr Journals]
Choi, S.-N., Lee, Y.-M., Lee, H.-W., Kang, S. K. & Kim, Y.-I. (2002). Acta Cryst. E58, m583-m585.  [CSD] [CrossRef] [ChemPort] [IUCr Journals]
Diaz, I., Fernandes, V., Belsky, V. K. & Martinez, J. L. (1999). Z. Naturforsch. Teil B, 54, 718-724.  [ChemPort]
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.  [Web of Science] [CrossRef] [ChemPort] [IUCr Journals]
Haddad, S. F., Aidamen, M. A. & Willett, R. D. (2006). Inorg. Chim. Acta, 359, 424-432.  [Web of Science] [CrossRef] [ChemPort]
Harlow, R. L., Wells, W. J., Watt, G. W. & Simonsen, S. H. (1975). Inorg. Chem. 14, 1786-1772.  [CSD] [CrossRef] [Web of Science]
Khadri, A., Bouchene, R., Bouacida, S., Merazig, H. & Roisnel, T. (2013). Acta Cryst. E69, m190.  [CSD] [CrossRef] [IUCr Journals]
Marzotto, A., Clemente, D. A., Benetollo, F. & Valle, G. (2001). Polyhedron, 20, 171-177.  [Web of Science] [CSD] [CrossRef] [ChemPort]
Parent, A. R., Landee, C. P. & Turnbull, M. M. (2007). Inorg. Chim. Acta, 360, 1943-1953.  [Web of Science] [CSD] [CrossRef] [ChemPort]
Sheldrick, G. M. (2002). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [ChemPort] [IUCr Journals]


Acta Cryst (2013). E69, m610-m611   [ doi:10.1107/S1600536813028006 ]

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