title: catena-Poly[[diaqua-strontium]-bis-(μ-quinoline-3-carboxyl-ato)].
abstract: The title compound, [Sr(C(10)H(6)NO(2))(2)(H(2)O)(2)](n), contains an eight-coordinate Sr(II) ion displaying a distorted square-anti-prismatic geometry, two quinoline-3-carboxyl-ate ligands and two terminal water mol-ecules. The Sr(II) atom is surrounded by six carboxyl-ate O atoms from four separate quinoline-3-carboxyl-ate ligands and two O atoms from two coordinated water mol-ecules. The bridging carboxyl-ate O atoms [Sr-O = 2.498 (3) and 2.495 (3) Å] link Sr(II) atoms, forming a chain substructure extending along the c axis. The chains are linked by O-H⋯N and O-H⋯O hydrogen bonds, giving a three-dimensional framework structure.
authors: Dong-Liang
authors: DL
authors: Miao
authors: Shi-Jie
authors: SJ
authors: Li
authors: Wen-Dong
authors: WD
authors: Song
authors: Xiao-Tian
authors: XT
authors: Ma
authors: Xiao-Fei
authors: XF
authors: Li