Two new compounds, [Ni（en）2]{[Ni（en）2]2[Mo^Ⅵ 6Mo^V2^Ⅳ8O40（SiO4）]}[（NH2）2（C2H4）2NH]·2H2O（1） and [Ni（en）2] { [Ni（en）2]2[Mo^Ⅵ5Mo^V3^Ⅳ8O40（VO4）] } （en）·H2O（2）（en=ethylenediamine）, hav...Two new compounds, [Ni（en）2]{[Ni（en）2]2[Mo^Ⅵ 6Mo^V2^Ⅳ8O40（SiO4）]}[（NH2）2（C2H4）2NH]·2H2O（1） and [Ni（en）2] { [Ni（en）2]2[Mo^Ⅵ5Mo^V3^Ⅳ8O40（VO4）] } （en）·H2O（2）（en=ethylenediamine）, have been hydrothermally synthesized and characterized by elemental analysis, infrared（IR）, X-ray photoelectron spectroscopy（XPS）, electron spin-resonance（ESR） and thermogravimetric（TG） analysis and single-crystal X-ray diffraction（XRD） analysis, Both the compounds exhibit a 1D chain composed of bi-supporting tetra-capped Keggin clusters and nickle coordination fragments. The ID chains are further assembled into a 3D supramolecular network with different packing modes via hydrogen bonds. The magnetic susceptibiltiy of compound 1 demonstrates the presence of antiferromagnetic interactions.展开更多
A new heteropolytungstate, [H2bpy]3[SiMnW11O39]· 1.25H2O （1）, has been prepared under mild hydrothermal conditions and structurally characterized by single crystal X-ray diffraction. It is the first characteriz...A new heteropolytungstate, [H2bpy]3[SiMnW11O39]· 1.25H2O （1）, has been prepared under mild hydrothermal conditions and structurally characterized by single crystal X-ray diffraction. It is the first characterized compound containing ID zigzag chain of transition metal substituted Keggin heteropolytungstate, which is connected through a common oxygen atom. The elemental analysis and IR of it are also described.展开更多
The title compound, [Cu2（DMPz）2PMo12O40]·HDMPz （1, DMPz = 2,5-dimethyl pyrazine）, has been synthesized and characterized by single-crystal X-ray diffraction analysis. It crystallizes in triclinic, space group...The title compound, [Cu2（DMPz）2PMo12O40]·HDMPz （1, DMPz = 2,5-dimethyl pyrazine）, has been synthesized and characterized by single-crystal X-ray diffraction analysis. It crystallizes in triclinic, space group P1 with a = 11.075（2）, b = 11.551（2）, c = 11.886（2） A.α = 106.352（2）, β = 109.862（3）, γ = 109.504（1）°, V = 1206.8（3） A3, C18H26CU2Mo12N6O40P, Mr = 2275.78, Z = 1, Dc = 3.131 g/cm3, μ = 4.011 mm^-1, F（000） = 1073, S = 1.066, the final R = 0.0389 and wR = 0.1056 for 3739 observed reflections with I 〉 2σ（I）. The structural analysis indicates that the title compound is composed of Keggin clusters [PMo12O40]3- connected by one-dimensional [CB（DMPz）]2n^2n＋ chains to form a two-dimensional grid layer with holes occupied by monoprotonated DMPz molecules. In the solid of the title compound, the 2D grid layers are stacked together in an ABAB packing mode.展开更多
基金Supported by the National Natural Science Foundation of China（No.20771030） and the Natural Science Foundation of Jilin Province, China（No.201215173）.
文摘Two new compounds, [Ni（en）2]{[Ni（en）2]2[Mo^Ⅵ 6Mo^V2^Ⅳ8O40（SiO4）]}[（NH2）2（C2H4）2NH]·2H2O（1） and [Ni（en）2] { [Ni（en）2]2[Mo^Ⅵ5Mo^V3^Ⅳ8O40（VO4）] } （en）·H2O（2）（en=ethylenediamine）, have been hydrothermally synthesized and characterized by elemental analysis, infrared（IR）, X-ray photoelectron spectroscopy（XPS）, electron spin-resonance（ESR） and thermogravimetric（TG） analysis and single-crystal X-ray diffraction（XRD） analysis, Both the compounds exhibit a 1D chain composed of bi-supporting tetra-capped Keggin clusters and nickle coordination fragments. The ID chains are further assembled into a 3D supramolecular network with different packing modes via hydrogen bonds. The magnetic susceptibiltiy of compound 1 demonstrates the presence of antiferromagnetic interactions.
基金This work was supported by the National Natural Science Foundation of China(20371011).
文摘A new heteropolytungstate, [H2bpy]3[SiMnW11O39]· 1.25H2O （1）, has been prepared under mild hydrothermal conditions and structurally characterized by single crystal X-ray diffraction. It is the first characterized compound containing ID zigzag chain of transition metal substituted Keggin heteropolytungstate, which is connected through a common oxygen atom. The elemental analysis and IR of it are also described.
基金supported by the Natural Science Foundation of Fujian Province (2006F3135,2006F3141,2007HZ0001-1)the Fund of Fujian Key Laboratory of Nanomaterials (2006L2005)
文摘The title compound, [Cu2（DMPz）2PMo12O40]·HDMPz （1, DMPz = 2,5-dimethyl pyrazine）, has been synthesized and characterized by single-crystal X-ray diffraction analysis. It crystallizes in triclinic, space group P1 with a = 11.075（2）, b = 11.551（2）, c = 11.886（2） A.α = 106.352（2）, β = 109.862（3）, γ = 109.504（1）°, V = 1206.8（3） A3, C18H26CU2Mo12N6O40P, Mr = 2275.78, Z = 1, Dc = 3.131 g/cm3, μ = 4.011 mm^-1, F（000） = 1073, S = 1.066, the final R = 0.0389 and wR = 0.1056 for 3739 observed reflections with I 〉 2σ（I）. The structural analysis indicates that the title compound is composed of Keggin clusters [PMo12O40]3- connected by one-dimensional [CB（DMPz）]2n^2n＋ chains to form a two-dimensional grid layer with holes occupied by monoprotonated DMPz molecules. In the solid of the title compound, the 2D grid layers are stacked together in an ABAB packing mode.
