A silicon-based tetracarboxylate connector has been prepared and employed in the construction of new metal-organic framework（MOF） material. A novel Cd（Ⅱ） coordination compound, namely, [Cd_4（H_2O）（L）（DMA）_2...A silicon-based tetracarboxylate connector has been prepared and employed in the construction of new metal-organic framework（MOF） material. A novel Cd（Ⅱ） coordination compound, namely, [Cd_4（H_2O）（L）（DMA）_2]_n（1, H_4L = 5,5？-（diphenylsilanediyl） diisophthalic acid, DMA = N,N-dimethylacetamide） has been successfully synthesized based on the ligand. X-ray single-crystal structure analysis reveals that polymer 1 crystallizes in monoclinic, space group P1 with a = 10.3335（11）, b = 14.1557（15）, c = 22.004（2） ？, α = 72.308（2）, β = 88.105（2）, γ = 88.363（3）o, V = 3064.2（6） ？~3, Cd_4Si_2C_（64）N_2O_（19）H_（52）, Mr = 1659, Dc = 1.790 g/cm^3, μ（Mo Kα） = 1.486 mm^（-1）, F（000） = 1630, Z = 2, the final R = 0.0660 and w R = 0.1302 for 12069 observed reflections（I 〉 2σ（I））. Its structure has been further characterized by elemental analysis, thermogravimetric analyses and IR spectroscopy. Additionally, luminescent property of the title compound has been explored, and shows intense photoluminescent property in the solid state at room temperature.展开更多
A three-dimensional(3 D) Cd-based metal-organic framework(MOF), [Cd(H2 O)(PAA)]·(H2 O)2(complex 1) has been rationally designed and synthesized by using 4-(pyrimidin-5-yl)isophthalic acid(H2 PAA) and Cd(NO3)2...A three-dimensional(3 D) Cd-based metal-organic framework(MOF), [Cd(H2 O)(PAA)]·(H2 O)2(complex 1) has been rationally designed and synthesized by using 4-(pyrimidin-5-yl)isophthalic acid(H2 PAA) and Cd(NO3)2·4 H2 O under solvothermal conditions. The structure has been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra, powder X-ray diffraction(PXRD) and thermogravimetric analyses(TGA). Single-crystal X-ray diffraction analyses reveal that complex 1 consists of a 3 D network with one-dimensional(1 D) channels. Moreover, 1 exhibits strong luminescent emission in solid state at room temperature. Fluorescence quenching was observed when treating complex 1 with picric acid(PA), 2,4-dinitrophenylhydrazine(2,4-DNPH) and p-nitroaniline(p-NA), revealing that the as-synthesized complex could be used as a luminescence sensor for the detection of PA, 2,4-DNPH and p-NA.展开更多
基金supported by the Jilin province development and reform commission(NDRC) project:2014Y115
文摘A silicon-based tetracarboxylate connector has been prepared and employed in the construction of new metal-organic framework（MOF） material. A novel Cd（Ⅱ） coordination compound, namely, [Cd_4（H_2O）（L）（DMA）_2]_n（1, H_4L = 5,5？-（diphenylsilanediyl） diisophthalic acid, DMA = N,N-dimethylacetamide） has been successfully synthesized based on the ligand. X-ray single-crystal structure analysis reveals that polymer 1 crystallizes in monoclinic, space group P1 with a = 10.3335（11）, b = 14.1557（15）, c = 22.004（2） ？, α = 72.308（2）, β = 88.105（2）, γ = 88.363（3）o, V = 3064.2（6） ？~3, Cd_4Si_2C_（64）N_2O_（19）H_（52）, Mr = 1659, Dc = 1.790 g/cm^3, μ（Mo Kα） = 1.486 mm^（-1）, F（000） = 1630, Z = 2, the final R = 0.0660 and w R = 0.1302 for 12069 observed reflections（I 〉 2σ（I））. Its structure has been further characterized by elemental analysis, thermogravimetric analyses and IR spectroscopy. Additionally, luminescent property of the title compound has been explored, and shows intense photoluminescent property in the solid state at room temperature.
基金supported by the Natural Science Foundation of Shaanxi Province(2018JQ2079,2018JQ2040,2018JM2055)
文摘A three-dimensional(3 D) Cd-based metal-organic framework(MOF), [Cd(H2 O)(PAA)]·(H2 O)2(complex 1) has been rationally designed and synthesized by using 4-(pyrimidin-5-yl)isophthalic acid(H2 PAA) and Cd(NO3)2·4 H2 O under solvothermal conditions. The structure has been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra, powder X-ray diffraction(PXRD) and thermogravimetric analyses(TGA). Single-crystal X-ray diffraction analyses reveal that complex 1 consists of a 3 D network with one-dimensional(1 D) channels. Moreover, 1 exhibits strong luminescent emission in solid state at room temperature. Fluorescence quenching was observed when treating complex 1 with picric acid(PA), 2,4-dinitrophenylhydrazine(2,4-DNPH) and p-nitroaniline(p-NA), revealing that the as-synthesized complex could be used as a luminescence sensor for the detection of PA, 2,4-DNPH and p-NA.
