摘要
用X光衍射方法研究了标题化合物三斜晶相结构,对其中的五个化合物(Ln:La,Ce,Sm,Eu,Tb)的晶体和分子结构作了精确的测定。除描述它们的Na-O 畸变配位八面体堆积特征外,还讨论了反映在Ln-O和Ln-N距离中的镧系收缩及其意义。
The triclinic crystal structures of the title Compounds, Na3[J n{C5H3N(COO)2}3]·14H2O (Ln=La-Pr, Sm-Tb) were studied by X-ray diffraction methods. The crystal and moleclar structures of the La, Ce, Sm, Eu anb Tb compounds have been determined in detail. The packing features of the distorted Na-O coordination octahedra are discribed, and the lanthanide contraction shown by the distances of LL-O and Ln-N in these lanthanide complexes are also discussed.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
1989年第5期514-518,共5页
Journal of Xiamen University：Natural Science
关键词
晶体结构
稀土离子
络合物
钠
吡啶
Crystal structures, Trisodiumtris (pytidine-2, e-dicarboxylato)Ln(Ⅲ).14-hydrate
