【摘要】 以-Keggin型多金属氧酸盐[PMo₁₂O₄₀]^3-作为模板,采用水热法成功合成一例新型二维Gd（Ⅲ）配位聚合物[Gd（BMBCP）（H₂O）₄][PMo₁₂O₄₀]·2.75H₂O（HNU-13）（H₂BMBCP·Cl₂=1,4-双（3-羧酸吡啶基-1-亚甲基）苯二氯）。通过单晶X-射线衍射仪确定其结构,并通过X-射线粉末衍射（PXRD）,傅里叶红外光谱（IR）和热重分析仪（TG）对其进行表征。结果表明,化合物结构结晶于单斜晶系,P2（1）/n空间群,晶胞参数为a=1.4291 nm,b=1.3772 nm,c=2.8430 nm,α=90.00°,β=91.154°,γ=90.00°,Z=4。值得注意的是,由于[PMo₁₂O₄₀]^3-与H₂BMBCP·Cl₂配体的静电作用,从而形成左右手螺旋链,进一步的构筑为层状4,4-网格结构。更多还原

【Abstract】 A two-dimensional Gd（ Ⅲ） coordination polymer [Gd（ BMBCP）（ H₂O）₄][PMo₁₂O₄₀]·2.75H₂O（ H₂BMBCP·Cl₂= 1,4-bis（ 3-carboxylic acid pyridyl-1-methylene） benzene dichloride）（ HNU-13） was successfully synthesized by using-Keggin type polyoxometallate [PMo₁₂O₄₀]^3- as template in hydrothermal condition. The structure was characterized by single crystal X-ray diffractometer,and the compound was characterized by X-ray powder diffraction（ PXRD）, Fourier transform infrared spectroscopy（ IR） and thermogravimetric analysis（ TG）. The results show that the structure of the compound is crystallized in the monoclinic system P2（ 1）/n space group with unit cell parameters a = 1.4291 nm,b = 1. 3772 nm,c = 2. 8430 nm,α = 90. 00°,β = 91. 154°,γ = 90. 00°,and Z = 4. It is worth noting that a layered 4,4-lattice structure is formed by the electrostatic interaction of [PMo₁₂O₄₀]^3- with H₂BMBCP·Cl₂ ligands to form right and left handed helical chains.更多还原