Tetra­kis­(μ-benzoato-κ2O:O′)bis{[4-(di­methyl­amino)­pyridine-κN1]zinc(II)}

Yu, Z.-Y.; Lin, K.-H.; Zhang, F.-F.; Shao, M.; Li, M.

doi:10.1107/S1600536811001188

Volume 67
Part 2
Page m206
February 2011

Received 4 January 2011
Accepted 9 January 2011
Online 15 January 2011

Key indicators
Single-crystal X-ray study
T = 296 K
Mean (C-C) = 0.004 Å
R = 0.031
wR = 0.066
Data-to-parameter ratio = 13.8
Details

Tetrakis(-benzoato-²O:O')bis{[4-(dimethylamino)pyridine-N¹]zinc(II)}

Zhe-Yin Yu,^a ^* Kun-Hua Lin,^b Fei-Fei Zhang,^b Min Shao ^c and Ming Li ^a

^aState Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China,^bDepartment of Chemistry, College of Science, Shanghai University, Shanghai 200444, People's Republic of China, and ^cInstrumental Analysis and Research Center, Shanghai University, Shanghai 200444, People's Republic of China
Correspondence e-mail: yuzheyin09@sjtu.edu.cn

In the centrosymmetric binuclear title complex, [Zn₂(C₇H₅O₂)₄(C₇H₁₀N₂)₂], the Zn atoms [ZnZn = 3.0037 (6) Å] are bridged by four benzoate ligands. Each of the Zn atoms assumes an approximately square-pyramidal environment, with four O atoms in a plane and the pyridine N atom at the apical site.

Related literature

For the nucleophilic properties of 4-(dimethylamino)pyridine (DMAP), see: Fu (2000). For complexes of DMAP, see: Tyrra et al. (2003) and for complexes of DMAP which exhibit luminescence, see: Araki et al. (2005). For ZnZn distances in related structures, see: Anirban et al. (2006); Han et al. (2009); Konidaris et al. (2009); Wang et al. (2008).

Experimental

Crystal data

[Zn₂(C₇H₅O₂)₄(C₇H₁₀N₂)₂]
M_r = 859.56
Monoclinic, P 2₁ /n
a = 10.3146 (12) Å
b = 11.1558 (13) Å
c = 17.324 (2) Å
= 95.616 (1)°
V = 1983.9 (4) Å³
Z = 2
Mo K radiation
= 1.27 mm^-1
T = 296 K
0.30 × 0.30 × 0.20 mm

Data collection

Bruker SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) T_min = 0.702, T_max = 0.786
10123 measured reflections
3515 independent reflections
2860 reflections with I > 2(I)
R_int = 0.030

Refinement

R[F² > 2(F²)] = 0.031
wR(F²) = 0.066
S = 0.99
3515 reflections
255 parameters
H-atom parameters constrained
_max = 0.27 e Å^-3
_min = -0.20 e Å^-3

Table 1
Selected bond lengths (Å)

Zn1-N1	2.0134 (19)
Zn1-O3	2.0390 (18)
Zn1-O1	2.0467 (16)
Zn1-O2ⁱ	2.0472 (17)
Zn1-O4ⁱ	2.0782 (18)
Symmetry code: (i) -x+1, -y, -z.

Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BQ2273 ).

Acknowledgements

We thank Min Shao of Shanghai University for working on the crystal structure analysis.

References

Anirban, K., Rupam, J. & Jubaraj, B. (2006). Inorg. Chem. Commun. 9, 1169-1172.
Araki, H., Tsuge, K., Sasaki, Y., Ishizaka, S. & Kitamura, N. (2005). Inorg. Chem. 44, 9667-9675.
Bruker (2000). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Fu, G.-C. (2000). Acc. Chem. Res. 33, 412-420.
Han, K., Sun, H., Soo, H., Young, M., Byeong, K., Yu, J., Je, Y., Cheal, K., Sung-Jin, K. & Youngmee, K. (2009). Polyhedron, 28, 553-561.
Konidaris, K. F., Kaplanis, M., Raptopoulou, C. P., Perlepes, S. P., Manessi-Zoupa, E, & Katsoulakou, E. (2009). Polyhedron, 28, 3243-3250.
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Tyrra, W., Naumann, D. & Pantenburg, I. (2003). J. Fluorine Chem. 120, 13-19.
Wang, K., Yin, P., Shen, Y., Li, Z., Qin, Y. & Yao, Y. (2008). Chin. J. Struct. Chem. 27, 1093-1096.

metal-organic compounds

Tetrakis(-benzoato-2O:O')bis{[4-(dimethylamino)pyridine-N1]zinc(II)}