title: catena-Poly[[[(1,10-phenanthroline-κN,N')zinc]-μ-pyridine-2,3-dicarboxyl-ato-κN,O:O,O] monohydrate].
abstract: In the title complex, {[Zn(C(7)H(3)NO(4))(C(12)H(8)N(2))]·H(2)O}(n), the Zn(II) ion is in a distorted octa-hedral environment, defined by two N atoms from a chelating 1,10-phenanthroline (phen) ligand and one N atom and three O atoms from two pyridine-2,3-dicarboxyl-ate (2,3-pydc) ligands. The bridging 2,3-pydc ligands connect the Zn(II) ions into a chain extending along [010]. O-H⋯O hydrogen bonds between the uncoordinated water mol-ecules and the uncoordinated carboxyl-ate O atoms, as well as π-π inter-actions between the pyridine rings of the phen ligands [centroid-centroid distance = 3.557 (2) Å], are observed.
authors.affiliation: Shangqiu Medical College, Shangqiu, Henan 476100, People's Republic of China.
authors.forename: Zhen-Hua
authors.initials: ZH
authors.lastname: Qin
authors.forename: Shu-Fang
authors.initials: SF
authors.lastname: Lou
authors.forename: Na
authors.initials: N
authors.lastname: Wang
authors.forename: Fu-Yu
authors.initials: FY
authors.lastname: Wang