{4,4′-Dibromo-2,2′-[propane-1,3-diyl­bis(nitrilo­methyl­idyne)]diphenolato}zinc(II)

Ma, J.-Y.

doi:10.1107/S1600536808015602

Volume 64
Part 6
Page m850
June 2008

Received 14 May 2008
Accepted 23 May 2008
Online 30 May 2008

Key indicators
Single-crystal X-ray study
T = 298 K
Mean (C-C) = 0.005 Å
Disorder in main residue
R = 0.037
wR = 0.093
Data-to-parameter ratio = 15.0
Details

{4,4'-Dibromo-2,2'-[propane-1,3-diylbis(nitrilomethylidyne)]diphenolato}zinc(II)

Jun-Ying Ma ^a ^*

^aChemical Engineering and Pharmaceutics College, Henan University of Science and Technology, Luoyang, Henan 471003, People's Republic of China, and Department of Chemistry, Pingdingshan University, Pingdingshan, Henan 467000, People's Republic of China
Correspondence e-mail: junying-ma@163.com

The title mononuclear zinc(II) complex, [Zn(C₁₇H₁₄Br₂N₂O₂)], possesses a crystallographically imposed C₂ axis. The Zn atom is four-coordinated by two O and two N atoms from two Schiff base ligands, forming a severely distorted square-planar geometry. The central C atom of the propyl group is disordered over two positions about the twofold axis.

Related literature

For background on the chemistry of Schiff base zinc(II) complexes and their biological activity, see: Anderson et al. (1997); Chohan & Kausar (1992, 1993); Chohan et al. (2003); Osowole et al. (2005); Yu et al., (2007). For related structures, see: Li & Zhang (2005); Wu et al. (2006); Xu et al. (2006); Ma et al. (2005); Ma, Gu et al. (2006); Ma, Lv et al. (2006); Ma, Wu et al. (2006).

Experimental

Crystal data

[Zn(C₁₇H₁₄Br₂N₂O₂)]
M_r = 503.49
Monoclinic, C 2/c
a = 21.418 (6) Å
b = 8.161 (2) Å
c = 9.524 (3) Å
= 92.910 (3)°
V = 1662.6 (8) Å³
Z = 4
Mo K radiation
= 6.30 mm^-1
T = 298 (2) K
0.32 × 0.30 × 0.30 mm

Data collection

Bruker SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2000) T_min = 0.143, T_max = 0.152
4709 measured reflections
1809 independent reflections
1444 reflections with I > 2(I)
R_int = 0.036

Refinement

R[F² > 2(F²)] = 0.036
wR(F²) = 0.092
S = 1.05
1809 reflections
121 parameters
3 restraints
H atoms treated by a mixture of independent and constrained refinement
_max = 0.45 e Å^-3
_min = -0.64 e Å^-3

Table 1
Selected geometric parameters (Å, °)

Zn1-O1	1.912 (3)
Zn1-N1	1.968 (3)

O1-Zn1-O1ⁱ	87.42 (16)
O1-Zn1-N1ⁱ	153.75 (12)
O1-Zn1-N1	93.21 (12)
Symmetry code: (i) $[-x, y, -z+{\script{1\over 2}}]$ .

Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); 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: RZ2218 ).

Acknowledgements

The Scientific Research Foundation of Henan University of Science and Technology (Project No. 05-072) is gratefully acknowledged.

References

Anderson, O. P., LaCour, A., Findeisen, M., Hennig, L., Simonsen, O., Taylor, L. F. & Toftlund, H. (1997). J. Chem. Soc. Dalton Trans. pp. 111-120.
Bruker (2000). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Chohan, Z. H. & Kausar, S. (1992). Chem. Pharm. Bull. 40, 2555-2556.
Chohan, Z. H. & Kausar, S. (1993). Chem. Pharm. Bull. 41, 951-953.
Chohan, Z. H., Scozzafava, A. & Supuran, C. T. (2003). J. Enzyme Inhib. Med. Chem. 18, 259-263.
Li, Z.-X. & Zhang, X.-L. (2005). Acta Cryst. E61, m1755-m1756.
Ma, J.-Y., Gu, S.-H., Guo, J.-W., Lv, B.-L. & Yin, W.-P. (2006). Acta Cryst. E62, m1437-m1438.
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Ma, J.-Y., Wu, T.-X., She, X.-G. & Pan, X.-F. (2005). Acta Cryst. E61, m695-m696.
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Osowole, A. A., Kolawole, G. A. & Fagade, O. E. (2005). Synth. React. Inorg. Met.-Org. Nano-Met. Chem. 35, 829-836.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Wu, Y., Shi, S.-M., Jia, B. & Hu, Z.-Q. (2006). Acta Cryst. E62, m648-m649.
Xu, H.-J., Liu, Z.-D. & Sheng, L.-Q. (2006). Acta Cryst. E62, m2695-m2697.
Yu, Y.-Y., Zhao, G.-L. & Wen, Y.-H. (2007). Chin. J. Struct. Chem. 26, 1395-1402.

metal-organic compounds