中文摘要：

在含有HF的体系中，用乙二胺作模板剂，通过水热方法合成了一个新的三维亚磷酸铟[In4（HPO3）7（H2O）3]（NH3CH2CH2NH3）（H2O），并对其进行了红外光谱、热重、ICP和CHN元素分析等表征.单晶X射线衍射分析结果表明，该化合物属于三方晶系，P3空间群，晶胞参数a=1.37883（7）nm，c=0.93450（9）nm，V=1.53862（2）nm^3，Z=2，Dc=2.489Mg/m^3，最终一致性因子R1[I〉2σ（I）]=0.0526，wR2[I〉2σ（I）]=0.1328，GOF=1.082.其结构中的InO6八面体、InO5（H2O）八面体和HPO3假四面体通过O原子共顶点连接，分别沿a，b轴方向形成含有十二元环的交叉孔道，客体水分子和双质子化的乙二胺分子存在于孔道中.

英文摘要：

A new three-dimensional indium phosphite, [ In4 （ HPO3 ）7 （ H2O）3 ] （ NH3CH2CH2NH3 ） （H2O）, was synthesized under hydrothermal conditions in the system containing HF using ethylenediamine as the template and characterized by IR spectroscopy, TG, ICP and C, H, N elemental analysis. The result of singlecrystal X-ray diffraction analysis reveals that the title compound crystallized in trigonal system, space group P3 with unit cell parameters a = 1. 37883 （7） nm, c =0. 93450（9） nm, V = 1. 53862（2） nm^3, Z =2, Dc = 2. 489 Mg/m^3, R, [ I 〉 2σ（I） ] = 0. 0526, wR2 [ I 〉 2σ（I） ] = 0. 1328, GOF = 1. 082. Its structure is built up from shared vertex linking InO6, InO5 （H2O） octahedral and HPO3 pseudo-pyramidal units by O atoms, forming intersecting twelve-membered ring channels along a and b axes directions. Guest water and diprontonated ethylenediamine molecules exist in the channels.