LiAl(IO_3)_4晶体结构的研究  

The Study of LiAl(IO_3)_4 Crystal Structure

作　　者：张令芬[1] 王朝果[2] 

机构地区：[1]广西大学化学系,530004 [2]北京工业大学,100022

出　　处：《广西大学学报（自然科学版）》1993年第4期81-83,共3页Journal of Guangxi University（Natural Science Edition）

摘　　要：用新的化学方法获得多晶碘酸盐LiAI(IO_3)_4其晶体具有压电性。密度为4.60g/cm^3,颜色为白色,常压下分解温度是445±5℃。用X射线粉末法测定了LiAI(IO_3)_4的晶体结构和原子参数。发现LiAI(IO_3)_4与a-LiIO_3同晶型,属六方晶系。室温下的点阵常数分别为a=5.585×10^(-10)m,C=4.945×10^(-10)m,c/a=0.8854。The polycrystalline new iodate, LiAl(IO_3)_4, was prepared by using a novel chemical technique, The LiAl(IO_3)_4, Crystal is prexocrystal, The density is equal 4. 60g/cm^3, the color is white, The decompose temperture is 445±5℃. The crstal stucture and atomic parameters of LiAl(IO_3)_4 were determined by means of the X-ray powder diffraction method, the LiAl(IO_3)_4 is isomorphic with α-LiIO_3. the unit cell is hexagonal, Lattice parameters are a=5.585×10^(-10)m, c=4.945×10^(-10)m, c/a=0.8854.

关 键 词：晶体结构 X射线粉末法 碘酸铝锂 

分 类 号：O614.111[理学—无机化学]