Received 12 February 2010
The title complex, [Cd2(C8H7O3)4(C20H22N4O)2], forms a dimer of the paddle-wheel type, located on a crystallographic inversion centre. The CdII ion is hexacoordinated by four carboxylate O atoms [CdO = 2.280 (2)-2.404 (2) Å] from two chelating 4-methoxybenzoate anions, and two N atoms [CdN = 2.313 (2) and 2.332 (2) Å] from one chelating 2,2'-dimethyl-3,3'-(oxydiethylene)bis(1H-benzimidazole) ligand. In the crystal, molecules are linked by a weak intermolecular C-HO hydrogen bond and an intermolecular C-H interaction.
Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell refinement: CrysAlis CCD; data reduction: CrysAlis RED (Oxford Diffraction, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LX2137 ).
The author thanks Weifang Vocational College for support.
Brandenburg, K. (1998). DIAMOND. Crystal Impact GbR, Bonn, Germany.
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
Hoskins, B. F., Robson, R. & Slizys, D. A. (1997). J. Am. Chem. Soc. 119, 2952-2953.
Oxford Diffraction (2006). CrysAlis CCD and CrysAlis RED. Oxford Diffraction Ltd, Abingdon, England.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Zhao, Q.-H., Ma, Y.-P., Wang, Q.-H. & Fang, R.-B. (2002). Chin. J. Struct. Chem. 21, 513-516.