高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (10): 1289.

• 论文 • 上一篇    下一篇

碱式邻苯二甲酸氢镧的制备及结构分析

孙聚堂, 姚松年, 杜秀珍, 陈圣云   

  1. 武汉大学化学系, 武汉, 430072
  • 收稿日期:1990-08-18 出版日期:1991-10-24 发布日期:1991-10-24
  • 通讯作者: 孙聚堂

Preparation and Structural Characterization of Lanthanum Hydroxide Hydrogen Diphthalate Monohydrate

Sun Ju-tang, Yao Song-nian, Du Xiu-zhen, Chen Sheng-yun   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072
  • Received:1990-08-18 Online:1991-10-24 Published:1991-10-24

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被引次数

11

摘要： 采用水膜反应法合成了一水合碱式邻苯二甲酸氢镧,电子衍射和X射线粉末衍射谱图表明其晶体结构属单斜晶系,空间群Plal(No.7),晶胞参数:a=2.0587nm,b=0.6235nm,c=1.3113nm,β=94.64°,Z=4.用傅里叶变换红外光谱仪测定了红外吸收光谱,并对各吸收带进行了归属,讨论了羧酸根与金属离子的配位结构。

关键词: 邻苯二甲酸, 镧配合物, 晶体结构, 红外光谱, 水膜反应

Abstract: The LaOH(C8H5O4)2·H2O was prepared by employing water film reaction method. The electron and X-ray diffraction patterns show that the complex belongs to a monoclinic system, Plal, Z=4, α=2. 0587 nm, b=0. 6235 nm, c=1. 3113 nm, β=94. 64°. The IRspectrum was recorded with a FT-IRspectrometer, and the vibrational bands were assigned by comparison with that of calcium phthalate monohydrate. The coordinate structure of carboxylate groups with lanthanum ions was discussed.

Key words: 1,2-Benzenedicarboxylic acid, Lanthanum complex, Crystal structure, Infrared spectrum, Water film reaction

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