Received 16 October 2013
In the centrosymmetric trinuclear ZnIICaIIZnII title complex, [CaZn2(CH3COO)6(C12H12N2)2], the CaII ion lies on an inversion centre and is octahedrally coordinated by six acetate O atoms. The ZnII ion is coordinated by two N atoms from a bidentate dimethylbipyridine ligand and three O atoms from acetate ligands bridging to the CaII ion, leading to a distorted square-pyramidal coordination sphere. The ZnCa distance is 3.4668 (5) Å.
For a review of the coordination chemistry of metal carboxylates, see: Rao et al. (2004). For applications of metal complexes in anion binding, see: Saeed et al. (2010); Mendy et al. (2010). For multimetallic complexes involving azide, cyanide, isocyanate, isothiocyanate, hydroxide, oxide and carboxylate anions, see: Herold & Lippard (1997). For coordination modes of carboxylate ions acting as bidentate ligands in metalloenzymes, see: Voegtli et al. (2000). For details of the synthesis, see: Hossain et al. (2010).
Data collection: COLLECT (Nonius, 2000); cell refinement: SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO (Otwinowski & Minor, 1997) and SCALEPACK; program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: FJ2647 ).
The National Science Foundation is acknowledged for a CAREER award (CHE-1056927) to MAH. The NMR core facility at Jackson State University is supported by the National Institutes of Health (G12RR013459). Purchase of the diffractometer was made possible by grant No. LEQSF (1999-2000)-ENH-TR-13, administered by the Louisiana Board of Regents.
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