希土高氯酸盐与直链醚配合物的合成与性质

SYNTHESIS AND CHARACTERIZATION OF THE COMPLEXES OF RARE EARTH PER CHLORATES WITH TETRAETHYLENE GLYCOL

本文首次合成了十五种希土高氯酸盐与三缩四乙二醇(EO_4)的配合物。很有意义地见到金属:EO_4的摩尔比均为1:2。通过元素分析、摩尔电导、热重一差热分析及红外光谱等表征,确证其组成为Ln(EO_4)_2(ClO_4)_3·nH_2O(Ln=La-Gd,n=2;Ln=Tb-Lu,Y,n=3)。文中探讨了不同溶剂、不同阴离子等对配位性质的影响,并与相应的冠醚配合物进行了比较。

The fifteen complexes of rare earth perchlorates with tctraethyleneglycol(EO4) have been synthesized and characterized by elemental analysis, molar conductivity, thermogravimetry-differential thermal analysis (TG-DTA) and infrared spectrum (IR). The chemical composition is Ln(EO4)2(ClO4)3 · nH2O (Ln = La-Gd, n = 2; Ln=Tb-Lu, Y, n = 3). It is interesting that all the molar ratios of Ln:EO4 in complexes are 1:2. The influence of solvents and counter anions is discussed.