A Novel 3D Twofold Zn(II) Coordination Polymer Constructed by Mixed Flexible Ligands: Synthesis, Crystal Structure and Fluorescence Property

A new Zn(II) coordination polymer, {[Zn(1,3-bip)(oba)]center dot 0.5H(2)O}(n) (1), 1,3-bip = 1,3-bis(imidazole) propane, H(2)oba = 4,4'-oxybis(benzoate)), have been synthesized and characterized by single-crystal X-ray diffraction, powder XRD, FTIR, TGA and elemental analysis techniques. The single-crystal X-ray diffraction reveals that complex 1 shows a 3D -> 3D twofold interpenetrating network that can be described as a 4-connected uninodal net with (6(5).8) topology. In addition, the photoluminescence property of complex 1 was also investigated at room temperature.