Received 16 September 2012
The ZnII ion in the title compound, [Zn(C24H28N2O6)]n, is located on a twofold rotation axis and is at the midpoint of a crown-4 moiety of 3,3'-[(1,7-dioxa-4,10-diazacyclododecane-4,10-diyl)bis(methylene)]dibenzoate anion. It is octahedrally coordinated by two N atoms and two O atoms of the crown moiety from one ligand and two carboxylate O atoms from two bridging intra-chain ligands. Metallomacrocyclic rings are identified in the structure. The metallomacrocycle contains two ZnII ions and 14 atoms from the bridging ligands. Repetition of these units gives rise to an infinite zigzag chain along . C-HO hydrogen bonds occur.
For coordination polymers including metal-organic framework structures, see: Bai et al. (2012); Janiak (2003); Kitagawa et al. (2004); Li et al. (2012); Liao et al. (2012); Liu et al. (2012); O'Keeffe et al. (2000); Suh et al. (2012); Yoon et al. (2012).
Data collection: APEX2 (Bruker, 2011); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: MW2087 ).
Financial support for this work by USA NSF/CREST/CFNM Award No. HRD-1137751 is gratefully acknowledged.
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