开放式有机-无机杂化骨架配位聚合物[Sn(SO_4)(BDC)(H_2O)]的合成和晶体结构

Synthesis and Structure of a New Open Metal-organic-inorganic Hybrid Framework [Sn(SO_4)(BDC)(H_2O)](BDC = Terephthalic acid)

具有大孔径、高比面积的金属有机骨架结构已成为微孔材料研究领域的一个热点[1～3]，但是其合成设计目前还主要集中在过渡金属元素和镧系元素为接点的微孔材料上.尽管硅、铝族元素已被广泛地用于构建和合成微孔材料，但由于其电荷高、极性强，故在开放有机金属骨架微孔材料的设计与合成中很少被应用[4].

A new coordination polymer [Sn(SO4)(BDC)(H2O)](BDC = terephthalic acid) with two dimensional (2D) open metal-organic-inganic hybrid framework structure has solvothermally prepared in N, N-dimethylformamide solution at 160℃- The structure determined from X-ray single crystal diffraction has space group P21 of monoclinic system with a = 0. 681 6(5), 6=1. 762 8(14), c=0. 772 2(6) nm, β=103. 7°, V=0. 901 2(12) nm3, Z=4, Dc = l. 569 Mg/m3; R1 = 0. 051 4[I>2σ(I)], Rw=0.138 1. The product is characteristic of 2D channels with 2D wavy layer structure.