Bis[4-(dimethyl­amino)­pyridinium] tetra­chloridozincate

Kefi, R.; Lefebvre, F.; Zeller, M.; Ben Nasr, C.

doi:10.1107/S1600536811005010

Volume 67
Part 3
Page m343
March 2011

Received 23 January 2011
Accepted 9 February 2011
Online 16 February 2011

Key indicators
Single-crystal X-ray study
T = 100 K
Mean (C-C) = 0.002 Å
R = 0.020
wR = 0.053
Data-to-parameter ratio = 27.4
Details

Bis[4-(dimethylamino)pyridinium] tetrachloridozincate

Riadh Kefi,^a Frederic Lefebvre,^b Matthias Zeller ^c and Cherif Ben Nasr ^a ^*

^aLaboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna, Tunisia,^bLaboratoire C2P2 (Equipe COMS), Ecole Superieure de Chimie Physique, Electronique, Villeurbanne, France, and ^cYoungstown State University, Department of Chemistry, One University Plaza, Youngstown, Ohio 44555-3663, USA
Correspondence e-mail: cherif_bennasr@yahoo.fr

In the title compound, (C₇H₁₁N₂)₂[ZnCl₄], [ZnCl₄]^2- anions and 4-(dimethylamino)pyridinium cations are held together by various intermolecular interactions including Coulombic attraction, hydrogen bonding and [pi] - [pi] stacking interactions. Three Cl atoms of the [ZnCl₄]^2- tetrahedron act as acceptors in N-HCl hydrogen bonds. The hydrogen bonds, both of which are bifurcated, lead to the formation of a three-dimensional network. Within the network, intermolecular [pi] - [pi] stacking interactions with a centroid-centroid distance of 3.5911 (7) Å arrange the 4-(dimethylamino)pyridinium cations into antiparallel dimers.

Related literature

For common applications of organic-inorganic hybrid materials, see: Kobel & Hanack (1986); Pierpont & Jung (1994); Huskins & Robson (1990). For related structures and discussion of geometrical features, see: Albrecht et al. (2003); El Glaoui et al. (2008).

Experimental

Crystal data

(C₇H₁₁N₂)₂[ZnCl₄]
M_r = 453.55
Triclinic, $[P \overline 1]$
a = 7.7056 (8) Å
b = 8.2159 (8) Å
c = 16.0972 (16) Å
= 77.422 (1)°
= 79.804 (1)°
= 75.983 (1)°
V = 956.67 (17) Å³
Z = 2
Mo K radiation
= 1.85 mm^-1
T = 100 K
0.55 × 0.50 × 0.45 mm

Data collection

Bruker SMART APEX CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2009) T_min = 0.602, T_max = 0.746
21487 measured reflections
5803 independent reflections
5638 reflections with I > 2(I)
R_int = 0.019

Refinement

R[F² > 2(F²)] = 0.020
wR(F²) = 0.053
S = 1.07
5803 reflections
212 parameters
H-atom parameters constrained
_max = 0.48 e Å^-3
_min = -0.44 e Å^-3

Table 1
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
N3-H3Cl1ⁱ	0.88	2.88	3.5090 (11)	130
N3-H3Cl3ⁱ	0.88	2.46	3.2224 (10)	146
N1-H1ACl2	0.88	2.81	3.4043 (10)	126
N1-H1ACl1	0.88	2.53	3.2066 (10)	134
Symmetry code: (i) -x, -y+1, -z.

Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); 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: RK2262 ).

Acknowledgements

We would like to acknowledge the support provided by the Secretary of State for Scientific Research and Technology of Tunisia. The diffractometer was funded by NSF grant 0087210, by Ohio Board of Regents grant CAP-491 and by YSU.

References

Albrecht, A. S., Landee, C. P. & Turnbull, M. M. (2003). J. Chem. Crystallogr. 33, 269-276.
Bruker (2009). APEX2, SAINT and SADABS. Bruker AXS Inc, Madison, Wisconsin, USA.
El Glaoui, M., Smirani, W., Lefebvre, F., Rzaigui, M. & Ben Nasr, C. (2008). Can. J. Anal. Sci. Spectrosc. 25, 103-107.
Huskins, B. F. & Robson, R. (1990). J. Am. Chem. Soc. 112, 1546-1554.
Kobel, W. & Hanack, M. (1986). Inorg. Chem. 25, 103-107.
Pierpont, C. G. & Jung, O. (1994). J. Am. Chem. Soc. 116, 2229-2230.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.

metal-organic compounds