Received 25 May 2013
In the title complex, [Cu(C13H10N3O)2]n, the copper(II) cation is located on a crystallographic inversion centre and adopts an elongated octahedral coordination geometry with the equatorial plane provided by trans-arranged bis-N,O-chelating acylhydrazine groups from two ligands and the apices by the N atoms of two pyridine rings belonging to symmetry-related ligands. The ligand adopts a Z conformation about the C=N double bond. The dihedral angle between the pyridine and phenyl rings is 2.99 (13)°. An intraligand C-HN hydrogen bond is observed. In the crystal, each ligand bridges two adjacent metal ions, forming a (4,4) grid layered structure. - stacking interactions [centroid-centroid distances in the range 3.569 (4)-3.584 (9) Å] involving rings of adjacent layers result in the formation of a three-dimensional supramolecular network.
For background to properties and applications of Schiff base-metal complexes, see: Schurig et al. (1980); Siddall et al. (1983); Maurya et al. (2005); Cozzi (2004); Liu et al. (2010). For the structures of related compounds, see: Yin (2008); Uçar et al. (2004); Sommerer et al. (1998); Moya-Hernández et al. (2003).
Data collection: CrystalClear; cell refinement: CrystalClear; data reduction: CrystalClear; 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: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RZ5068 ).
We thank Professor Chang-Cang Huang for his patient advice. This work was supported by the Ability Enhanced Project of Undergraduate Talent of Fuzhou University, which is supported by the National Talent Fund Projects.
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