A furaldehyde Schiff base, 4-[（2-furanylmethylene）amino]phenol（FMAP）, was synthesized and fully characterized by elemental analysis, ^1H-NMR, IR, MS, UV-Vis, fluorescence and single-crystal X-ray diffraction. It c...A furaldehyde Schiff base, 4-[（2-furanylmethylene）amino]phenol（FMAP）, was synthesized and fully characterized by elemental analysis, ^1H-NMR, IR, MS, UV-Vis, fluorescence and single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P2_1/n with a = 6.2566（6）, b = 13.2273（11）, c = 11.3056（9） A, β = 93.1800（10）o, V = 934.19（14） A^3, Z = 4, M_r = 187.19, D_c = 1.331 g/cm^3, λ = 0.71073 a, F（000） = 392, GOOF = 1.022, R = 0.0396 and wR = 0.0992 for 4569 observed reflections with I 〉 2σ（I）. Fluorescent spectroscopic investigation revealed that the Schiff base exhibited a high selectivity and sensitivity toward Al^3＋ over other common metal ions in ethanol solution, and the detection limit of Al^3＋ is up to 1.2 × 10^-7 M. The mass spectra and Job＇s plot analysis confirm the 1：1 stoichiometry between FMAP and Al^3＋.展开更多
The copper complex Cu（C12H9N2O3）2 has been synthesized by the reaction of furaldehyde salicylylhydrazone （Hfs） and copper acetylacetonate and characterized by X-ray crystal diffraction and spectroscopic studies. T...The copper complex Cu（C12H9N2O3）2 has been synthesized by the reaction of furaldehyde salicylylhydrazone （Hfs） and copper acetylacetonate and characterized by X-ray crystal diffraction and spectroscopic studies. The crystal crystallizes in space group P211n with a = 5.9765（3）, b = 15.7196（9）, c = 12.0514（6）A,β= 101.618（3）^o, V = 1109.0（1）A^3, C24H18CuN4O6, Mr = 521.96, Z = 2, Dc = 1.563 g/cm^3, μ = 1.035 mm^-1, F（000） = 534, R = 0.0373 and wR = 0.1058 for 2283 observed reflections （I 〉 2σ（I））. The copper atom has a square-planar CuN2O2 coordination and should be in an octahedral coordination if considering Cu-O （phenol） with distances of 2.796（2）A as weak bonds. The neighboring copper complex molecules are linked together by these weak Cu-O （phenol） bonds, resulting in an extended 1D chain. The title compound exhibits paramagnetic property and fluorescence behavior at room temperature supported by the EPR and fluorescence spectra.展开更多
基金supported by Teaching Reform Innovation Program of Higher Education Institutions in Shanxi(Nos.J2016090 and J2017092)Soft Science Project of Shanxi Province(No.2016042008-1)
文摘A furaldehyde Schiff base, 4-[（2-furanylmethylene）amino]phenol（FMAP）, was synthesized and fully characterized by elemental analysis, ^1H-NMR, IR, MS, UV-Vis, fluorescence and single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P2_1/n with a = 6.2566（6）, b = 13.2273（11）, c = 11.3056（9） A, β = 93.1800（10）o, V = 934.19（14） A^3, Z = 4, M_r = 187.19, D_c = 1.331 g/cm^3, λ = 0.71073 a, F（000） = 392, GOOF = 1.022, R = 0.0396 and wR = 0.0992 for 4569 observed reflections with I 〉 2σ（I）. Fluorescent spectroscopic investigation revealed that the Schiff base exhibited a high selectivity and sensitivity toward Al^3＋ over other common metal ions in ethanol solution, and the detection limit of Al^3＋ is up to 1.2 × 10^-7 M. The mass spectra and Job＇s plot analysis confirm the 1：1 stoichiometry between FMAP and Al^3＋.
基金This work was financially supported by the NNSFC (No. 20431010 and 20171012)
文摘The copper complex Cu（C12H9N2O3）2 has been synthesized by the reaction of furaldehyde salicylylhydrazone （Hfs） and copper acetylacetonate and characterized by X-ray crystal diffraction and spectroscopic studies. The crystal crystallizes in space group P211n with a = 5.9765（3）, b = 15.7196（9）, c = 12.0514（6）A,β= 101.618（3）^o, V = 1109.0（1）A^3, C24H18CuN4O6, Mr = 521.96, Z = 2, Dc = 1.563 g/cm^3, μ = 1.035 mm^-1, F（000） = 534, R = 0.0373 and wR = 0.1058 for 2283 observed reflections （I 〉 2σ（I））. The copper atom has a square-planar CuN2O2 coordination and should be in an octahedral coordination if considering Cu-O （phenol） with distances of 2.796（2）A as weak bonds. The neighboring copper complex molecules are linked together by these weak Cu-O （phenol） bonds, resulting in an extended 1D chain. The title compound exhibits paramagnetic property and fluorescence behavior at room temperature supported by the EPR and fluorescence spectra.
