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为了丰富亚磷酸盐结构,为多孔材料的定向合成提供一定的实验数据,在溶剂热的条件下,以咪唑为结构导向剂合成了一个具有三维开放骨架结构的新型亚磷酸镓化合物Ga8(H2O)6(HPO3)14·(C3N2H6)3·H3O(化合物1),并通过粉末X-射线衍射、红外光谱、热重、ICP和CHN元素分析对化合物进行了表征。单晶X-射线衍射分析结果表明,化合物1属于三斜晶系,P-3c1空间群,晶胞参数为a=b=1.33388(8)nm,c=1.7886(2)nm,γ=120(4)°,Z=2。其结构是由Ga O6八面体和[HPO32-]假四面体单元相互连接构成。该结构沿着[100]和[010]方向具有12元环孔道。值得注意的是,在化合物1的结构中存在两种不同的次级结构单元(SBU):经典的6*1单元Ga3P4和齿轮状的Ga P6单元。
In order to enrich the phosphite structure and provide some experimental data for the directional synthesis of porous materials, a novel gallium phosphite (Ga8 (H 2 O)) with a three-dimensional open framework structure was synthesized with imidazole as the structure-directing agent under solvothermal conditions. 6 (HPO3) 14 · (C3N2H6) 3 · H3O (compound 1) and characterized by powder X-ray diffraction, infrared spectroscopy, thermogravimetry, ICP and CHN elemental analysis. Single crystal X-ray diffraction analysis showed that compound 1 belongs to the triclinic space group P-3c1 with unit cell parameters of a = b = 1.33388 (8) nm, c = 1.7886 4) °, Z = 2. Its structure is composed of Ga O6 octahedra and [HPO32-] pseudo tetrahedron units connected to each other. The structure has a 12-membered ring aperture in the [100] and [010] directions. It is noteworthy that there are two different secondary structural units (SBU) in the structure of compound 1: the classic 6 * 1 unit Ga3P4 and the gear-like Ga P6 units.