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用1,3-间苯二甲酸(BDC)和Ln2O3(Ln=Gd,Ho),通过水热法,加入少量3,5-二甲基吡啶,合成了具有二维结构的配位聚合物[Ln2(BDC)3(H2O)2]n.通过X射线单晶衍射的方法得到两种化合物的晶体数据.[Gd2(BDC)3(H2O)2]n的晶体数据:C24H16O14Gd2,M=842.9,单斜晶系,空间群:P21/n,a=1.341 nm,b=1.446 nm,c=1.343 nm,β=104.17°,V=2.528 nm3,Z=4,Mo-Kα,μ=5.264 cm-1,Dc=2.12 g.cm-3.[Ho2(BDC)3(H2O)2]n的晶体数据:C24H16O14Ho2,M=860.2,单斜晶系,空间群:P21/c,a=1.059 nm,b=1.420 nm,c=1.710 nm,β=97.90°,V=2.548 nm3,Z=4,Mo-Kα,μ=5.264 cm-1,Dc=2.12 g.cm-3.这两种化合物有相似的二维结构.Ln离子通过三种不同的BDC配体方式互相连接,组成了复杂的二维隧道,同时配位水分子在隧道中.
The coordination polymers with two-dimensional structure were synthesized by hydrothermal method using 1,3-isophthalic acid (BDC) and Ln2O3 (Ln = Gd, Ho) by adding a small amount of 3,5-lutidine [ The crystal data of the two compounds were obtained by X-ray single crystal diffraction. [Gd2 (BDC) 3 (H2O) 2] Crystal data of n: C24H16O14Gd2, M = 842.9, In the monoclinic system, the space group: P21 / n, a = 1.341 nm, b = 1.446 nm, c = 1.343 nm, β = 104.17 °, V = 2.528 nm3, Z = 4, Mo-Kα, μ = 5.264 cm- 1, Dc = 2.12 g · cm -3. Crystal data of [Ho2 (BDC) 3 (H2O) 2] n: C24H16O14Ho2, M = 860.2, monoclinic space group: P21 / c, a = 1.059 nm, b = 1.420 nm, c = 1.710 nm, β = 97.90 °, V = 2.548 nm3, Z = 4, Mo-Kα, μ = 5.264 cm-1, Dc = 2.12 g.cm-3. The two-dimensional structure of Ln ions through three different BDC ligands connected to each other to form a complex two-dimensional tunnel, while coordinating water molecules in the tunnel.