稀土与二(2,4,4-三甲基戊基)膦酸固体配合物的研究

金属学报, 1993, 29(6): 59-65.

稀土与二(2,4,4-三甲基戊基)膦酸固体配合物的研究

李琼清 , 李德谦 , 刘书珍 , 曾广赋 , 庞伦

中国科学院长春应用化学研究所稀土化学与物理开放实验室

研究员

长春130022

中国科学院长春应用化学研究所稀土化学与物理开放实验室

暨南大学

基金项目: 国家自然科学基金

关键词：稀土 , 4 , 4-trimethylpentyl) phosphinic acid , rare earth complex

STUDY ON RARE EARTH COMPLEXEX WITH BIS (2, 4, 4-TRIMETHYLPENTYL)-PHOSPH ACID

LI Qiongqing , LIU Shuzhen , ZENG Guangfu , PANG Lun Laboratory of Rare Earth Chemistry and Physics , Changchun Institute of Appliied Chemistry

Keywords： bis (2 , 二(2,4,4-三甲基戊基)膦酸 , 振动光谱 , 热分析

合成了除Pm以外的16个稀土与二(2,4,4-三甲基戊基)膦酸(HBTMPP)的固体配合物,其组成为RE(BTMPP)_3,对配合物的性质进行了表征,热分析表明,在氩气中,热分解是一步完成的,在空气中,热分解分二步完成,前者的热分解产物是RE_4 (P_2O_7)_3,后者的产物为RE_2P_4O_(13)测定了配合物的振动光谱,对其主要吸收谱带进行了归属,配合物中RE-O键具有较高的离子特性

The solid complexes of 16 rare earth elements with bis (2,4,4-trimethylpentyl)phosphinic acid (HBTMPP) were synthesized and their composition was identified to beRE(BTMPP)_3. The thermal analyses of the complexes were studied in Ar or air. Thethermo-decomposition residues of the complexes were verified by element analysis, infraredspectra and X-ray diffraction to be RE_4(P_2O_7)_3 in Ar or RE_2P_4O_(13) in air. The infrared andRaman spectra were measured for RE(BTMPP)_3 and principal absorption bands were as-signed. The results showed that the RE-O bands of RE(BTMPP)_3 are principally ionic.

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