Received 26 October 2009
The asymmetric unit of the title polymeric compound, [Zn3(C10H8O4)3(C5H5N)2]n or [Zn3(dmbdc)3(py)2]n (dmbdc = 2,5-dimethylbenzenedicarboxylate; py = pyridine) contains two Zn(II) ions, one of which is located on an inversion centre, one and a half 2,5-dimethylbenzenedicarboxylate ligands and one pyridine ligand. Each ZnO6 octahedron is sandwiched between two ZnO4N square-pyramids, forming a trinuclear zinc secondary building unit (SBU); each SBU is further linked by six 2,5-dimethylbenzenedicarboxylate ligands with six adjacent trinuclear zinc SBU's, forming a two-dimensional layer structure with a (3,6) net. One of the three zinc ions is octahedrally coordinated and the other two are square-pyramidally coordinated. The coordination modes for 2,5-dimethylbenzenedicarboxylates are bis(bidentate) or bidentate-tridentate.
For the potential applications of metal-organic frameworks formed from terephthalic acid and its derivatives, see Wang et al. (2007); Grzesiak et al. (2006); Rosi et al. (2005); Burrows et al. (2005); Liao et al. (2006); Yang et al. (2002); Eddaoudi et al. (2002). For related structures, see: Wang et al. (2008); Zhou et al. (2009).
Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPII (Johnson, 1976); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BV2132 ).
We are grateful for financial support by the National Natural Science Foundation of China (grant No. 20471049) and Xiamen University.
Bruker (2002). SADABS, SAINT and SMART. Bruker AXS Inc., Madison, Winsonsin, USA.
Burrows, A. D., Cassar, K., Friend, R. M. W., Mahon, M. F., Rigby, S. P. & Warren, J. E. (2005). CrystEngComm. 7, 548-550.
Eddaoudi, M., Kim, J., Rosi, N., Vodak, D., Wachter, J., O'Keeff, M. & Yaghi, O. M. (2002). Science , 295, 469-472.
Grzesiak, A. L., Uribe, F. J., Ockwig, N. W., Yaghi, O. M., Bi, W. & Matzger, A. J. (2006). Angew. Chem. Int. Ed. 45, 2553-2556.
Johnson, C. K. (1976). ORTEPII. Report ORNL-5138 Oak Ridge National Laboratory.
Liao, J. H., Lee, T. J. & Su, C. T. (2006). Inorg. Chem. Commun. 9, 201-204.
Rosi, N. L., Kim, J., Eddaoudi, M., Chen, B., O'Keeffe, M. & Yaghi, O. M. (2005). J. Am. Chem. Soc. 127, 1504-1518.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Wang, F. K., Song, X. X., Yang, S. Y., Huang, R. B. & Zheng, L. S. (2007). Inorg. Chem. Commun. 10, 1198-1201.
Wang, F. K., Yang, S. Y., Huang, R. B., Zheng, L. S. & Batten, S. R. (2008). CrystEngComm, 11, 1211-1215.
Yang, S. Y., Long, L. S., Jiang, Y. B., Huang, R. B. & Zheng, L. S. (2002). Chem. Mater. 14, 3229-3231.
Zhou, D. S., Wang, F. K., Yang, S. Y., Xie, Z. X. & Huang, R. B. (2009). CrystEngComm, 10, 2548-2554.