Received 7 April 2013
aInformation Centre, Gansu Institute of Forestry Survey and Planning, Lanzhou 730020, People's Republic of China,bCollege of Earth and Environmental Scieces, Lanzhou University, Lanzhou 730000, People's Republic of China,cZhaosheng Office of Gansu Province, Lanzhou 730030, People's Republic of China, and dSchool of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People's Republic of China
Correspondence e-mail: firstname.lastname@example.org
In the title complex, [Cu(C22H17Br2N2O2)2], the CuII ion is four-coordinated in a trans-CuN2O2 square-planar geometry by two phenolate O and two imino N atoms from two deprotonated N,O-bidentate ligands. In the crystal, the packing of the molecules is controlled by C-H and - interactions [centroid-centroid distances = 3.568 (3), 3.678 (2), 3.717 (3) and 3.799 (2) Å] and weak BrBr halogen bonds [3.508 (4) Å], linking the molecules into an infinite three-dimensional supramolecular network.
For background to oxime-based salen-type tetradentate ligands, see: Akine et al. (2001); Dong & Ding (2007); Dong et al. (2012); Bertolasi et al. (1982); Tarafder et al. (2002). For the synthesis and related crystal structures, see: Zhao & Ng (2010); Zhao et al. (2012); Dong et al. (2010).
Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2001); 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: ZL2543 ).
This work was supported by the Foundation of the Education Department of Gansu Province (0904-11), which is gratefully acknowledged.
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