title: Poly[tetra-kis(μ(4)-4,6-dimethyl-5-nitro-benzene-1,3-dicarboxyl-ato-κO:O:O:O)bis-(pyridine-κN)dizinc].
abstract: In the title complex, [Zn(2)(C(10)H(7)NO(6))(2)(C(5)H(5)N)(2)](n), the repeat unit is a centrosymmetic tetra-carboxyl-ato-O,O'-bridged dimer in which each Zn(II) atom is five-coordinated by four O atoms from different dianionic 4,6-dimethyl-5-nitro-iso-phthalate ligands [Zn-O = 2.0283 (18)-2.0540 (19) Å] and one N atom from a pyridine mol-ecule [Zn-N = 2.030 (2) Å] in the axial site of a slightly distorted square-pyramidal coordination sphere. The Zn⋯Zn separation is 2.9750 (6) Å. The complex dimers are extended into a two-dimensional polymeric structure parallel to (100) through bridges provided by the second carboxyl-ate group of the ligand.
authors.affiliation: School of Materials Science and Engineering, University of Jinan, Jinan 250100, People's Republic of China.
authors.forename: Qing-Yu
authors.initials: QY
authors.lastname: Ma
authors.forename: Rui-Fang
authors.initials: RF
authors.lastname: Guan
authors.forename: Guo-Zhong
authors.initials: GZ
authors.lastname: Li