A new nickel coordination polymer {[Ni（dpa）（bpe）（H2O）]2}n（1） has been hydro-thermally synthesized, and structurally characterized by UV spectroscopy, elemental analyses and single-crystal X-ray diffraction（H2...A new nickel coordination polymer {[Ni（dpa）（bpe）（H2O）]2}n（1） has been hydro-thermally synthesized, and structurally characterized by UV spectroscopy, elemental analyses and single-crystal X-ray diffraction（H2dpa=3-（4-hydroxypyridinium-1-yl） phthalic acid, bpe=μ-1,2-di（4-pyridyl） ethylene）. It crystallizes in the triclinic system, space group P1 with a=8.779（2）, b=10.909（3）, c=12.739（3）, α=72.45（2）, β=75.13（2）, γ=86.47（2）°, V=1124.1（5） 3, Z=2, Mr=516.14, Dc=1.525 g/cm3, μ=0.912 mm-1, Rint=0.0532, F（000）=532, the final R=0.0523 and wR=0.1089 for 3949 observed reflections（I〉2σ（I））. The coordination around the Ni center is a distorted octahedron coordination geometry involving two protonated H2dpa ligands, two bpe ligands, and one coordinated H2O molecule. The dpa2- anion, as a bridging ligand, connects two Ni centers to form binuclear units, which are linked together by the bpe ligands to form two-dimensional layers, and the interlayer hydrogen bonding further extends the 2D sheet into a 3D supramolecular framework.展开更多
基金Key Laboratory of Applied Chemistry of Pingdingshan University for financial support
文摘A new nickel coordination polymer {[Ni（dpa）（bpe）（H2O）]2}n（1） has been hydro-thermally synthesized, and structurally characterized by UV spectroscopy, elemental analyses and single-crystal X-ray diffraction（H2dpa=3-（4-hydroxypyridinium-1-yl） phthalic acid, bpe=μ-1,2-di（4-pyridyl） ethylene）. It crystallizes in the triclinic system, space group P1 with a=8.779（2）, b=10.909（3）, c=12.739（3）, α=72.45（2）, β=75.13（2）, γ=86.47（2）°, V=1124.1（5） 3, Z=2, Mr=516.14, Dc=1.525 g/cm3, μ=0.912 mm-1, Rint=0.0532, F（000）=532, the final R=0.0523 and wR=0.1089 for 3949 observed reflections（I〉2σ（I））. The coordination around the Ni center is a distorted octahedron coordination geometry involving two protonated H2dpa ligands, two bpe ligands, and one coordinated H2O molecule. The dpa2- anion, as a bridging ligand, connects two Ni centers to form binuclear units, which are linked together by the bpe ligands to form two-dimensional layers, and the interlayer hydrogen bonding further extends the 2D sheet into a 3D supramolecular framework.
