Acta Cryst. (2009). E65, m1582-m1583  [ doi:10.1107/S1600536809047473 ]

Tetrakis[-4-(dimethylamino)benzoato-²O:O']bis[(N,N-diethylnicotinamide-N¹)zinc(II)]

T. Hökelek, H. Dal, B. Tercan, Ö. Aybirdi and H. Necefoglu

Abstract: The title molecule, [Zn₂(C₉H₁₀NO₂)₄(C₁₀H₁₄N₂O)₂], is a centrosymmetric binuclear complex, with Zn atoms [ZnZn' = 2.8927 (4) Å] bridged by four carboxylate groups from the dimethylaminobenzoate (DMAB) ligands. The four carboxyl O atoms around the Zn atom form a distorted square-planar arrangement; the distorted square-pyramidal coordination geometry is completed by the pyridine N atom of the N,N-diethylnicotinamide (DENA) ligand. The Zn atom is displaced by 0.3326 (2) Å from the plane of the four O atoms, with an average Zn-O distance of 2.0416 (12) Å. The dihedral angles between the carboxylate groups and the adjacent benzene rings are 5.31 (8) and 11.00 (9)°, while the pyridine ring is oriented at dihedral angles of 66.26 (6) and 37.88 (7)° with respect to the benzene rings. Weak intramolecular C-HO and intermolecular C-H interactions are present.

Online 14 November 2009

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