一种新颖磷酸镓化合物的合成与表征  

Synthesis and Characterization of a Novel Gallium Phosphate[H_3N(CH_2)_2NH_3]_(1/2)·[Ga_5(PO_4)_4(OH)_4]

作　　者：杨磊[1] 张如意[1] 毕文彦[1] 

机构地区：[1]河南理工大学物理化学系,河南焦作454150

出　　处：《化学世界》2008年第7期385-388,共4页Chemical World

摘　　要：应用水热合成法且以乙二铵为膜板剂合成了一种结构新颖的磷酸镓化合物[H3N(CH2)2NH3]1/2.[Ga5(PO4)4(OH)4]。利用单晶X射线衍射仪对其结构进行分析,有关晶体数据如下:空间构型,单斜C2/m,a=1.0160(9)nm,b=1.2008(15)nm,c=0.7189(7)nm,β=90.797(6)°,V=0.87708(16)nm3,Z=2,R1=0.0264,wR2=0.0764。其结构是由一个新颖的次级结构单元(SBU)Ga4P4O20(OH)4构建而成,在SBU中Ga处于变形的三角双锥构型,P处于四面体构型。SBU通过桥氧连接成层,层与层间通过GaO4(OH)2八面体连接成三维框架结构。A new three-dimensional open-framework gallophosphate：[H3N（CH2）2NH3]（1/2）·[Ga5（PO4）4（OH）4] was prepared by hydrothermal method in the presence of ethylenediamine（en） as a structure-directing agent.Its structure was determined by means of single-crystal X-ray diffraction analysis with the following crystal data：monoclinic space group C2/m,a=1.0160（9）nm,b=1.2008（15）nm,c=0.7189（7）,β=90.797（6）°,V=0.87708（16）nm^3,Z=2,R1=0.0264,wR2=0.0764.It is built up by a new secondary building unit（SBU） Ga4P4O（20）（OH）4,in which Ga atoms exhibit distorted trigonal bipyramidal coordination and P atoms are in tetrahedral coordination.The SBU Ga4p4O（20）（OH）4 are linked into a layer by bridge oxygen atoms.The GaO4（OH）2 octahedra link the layers into a three-dimentional framework.

关 键 词：水热合成 磷酸镓 晶体结构 

分 类 号：O643[理学—物理化学]