【摘要】 详细报道了Sm3+,Eu3+和Gd3+分别与乙二胺四乙酸(EDTA)配体形成配合物的合成及结构测定。通过单晶X-射线衍射仪和元素分析的测定,确定了这些配合物的结构都是以Sm3+,Eu3+和Gd3+为中心的九配位单帽四方反棱柱体结构,组成分别为Na[Sm(EDTA)(H2O)3]·5H2O,Na[Eu(EDTA)(H2O)3]·4H2O和Na[Gd(EDTA)(H2O)3]·5H2O。更多还原

【Abstract】 Sm³⁺, Eu³⁺ and Gd³⁺ complexes with ethylenediaminetetraacetic acids （EDTA） were prepared and their composition and structures were determined as Na[Sm（EDTA）（H₂O）₃]·5H₂O, Na[Eu（EDTA）（H₂O）₃]·4H₂O and Na[Gd（EDTA）（H₂O）₃]·5H₂O by single-crystal X-ray diffraction analyses and elemental analyses, respectively. In these complexes, the REN₂O₇ parts form the nine-coordinate structures with mono-capped square antiprism.更多还原