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以乙二胺四乙酸(H4edta)、三氧化二锑、氧化钆为主要原料,在水溶液中反应合成了锑(III)和钆(III)的三核杂金属配合物[Sb2(edta)2Gd(H2O)4]NO3·3H2O,用元素分析、红外光谱、X射线粉末衍射和热分析等方法对配合物的组成和结构进行了表征。X射线粉末衍射数据指标化计算结果证实该配合物晶体结构属于单斜晶系,晶胞参数为:a=11.259,b=9.689,c=20.489,β=94.099°。其热分解过程包括失水、配体及NO-3的氧化分解过程,最后完全形成金属氧化物。
The trinuclear heteropoly complexes of antimony (III) and gadolinium (III) [Sb 2 (edta) 2Gd (Sb 2+)] were synthesized by the reaction of ethylenediaminetetraacetic acid (H4edta), antimony trioxide and gadolinium oxide H2O) 4] NO3 · 3H2O. The composition and structure of the complex were characterized by elemental analysis, infrared spectroscopy, X-ray powder diffraction and thermal analysis. The crystal structure of the complex belongs to the monoclinic system. The unit cell parameters are as follows: a = 11.259, b = 9.689, c = 20.489, β = 94.099 °. The thermal decomposition process includes water loss, ligand and NO-3 oxidation and decomposition process, and finally the complete formation of metal oxides.