含铋双金属配合物的合成与表征

Synthesis and Characterization of Bismuth(Ⅲ) Bimetallic Complexes

在水溶液中采用固液相反应法合成了二乙烯三胺五乙酸的含铋双金属配合物CaBi(dtpa).5H2O(1)和MnBi(dtpa).5H2O(2)。用元素分析、X射线粉末衍射、红外光谱、原子吸收和热重分析等方法进行表征,确定了配合物的组成和结构,并对XRD数据进行了指标化。结果表明:两种配合物均为单斜晶系,CaBi(dtpa).5H2O的晶胞参数为:a=1.2837 nm,b=0.8682 nm,c=1.3593 nm,β=97.909°;MnBi(dtpa).5H2O的晶胞参数为:a=1.4359nm,b=0.8666 nm,c=0.7369 nm,β=96.295°。

Two novel bimetallic complexes of bismuth （ Ⅲ ） with diethylenetriamine pentaacetic acid, CaBi （dtpa） ·5H2O （1） and MnBi（dtpa） ·5H2O （2） were synthesized by solid-liquid state reaction in aqueous medium. The complexes were characterized by elemental analysis, X-ray powder diffraction, IR spectra and TG-DSC. The reushs show that complexes belong to monoclinic system and the lattice parameters ：a=1.4359nm,b=0.8666 nm,c=0.7369 nm,β=96.295° for MnBi（dtpa） ·5H2O.