摘要
用Ｘ射线衍射法确定了Ｎｄ（ＤＢＭ）３Ｈ２Ｏ、Ｅｒ（ＤＢＭ）３Ｈ２Ｏ的晶体结构与分子结构，实验证实：它们是同构的，属三方晶系Ｒ３空间群，Ｚ＝１，其晶胞参数分别为Ｎｄ（ＤＢＭ）３Ｈ２Ｏ，ａ＝２２．６１５１０（），ｃ＝６．４５３００（）；Ｅｒ（ＤＢＭ）３Ｈ２Ｏ：ａ＝２２．６８００９，ｃ＝６．４０１７０，收敛因子分别为Ｒ（Ｎｄ）＝０．０３９０，Ｒ（Ｅｒ）＝０．０３８７。在此基础上对此类稀土螯合物的结构规律进行了详尽的讨论。
? The crystal and molecular structures of Deodymium and Erbium dibenzoylmethanate (DBM) chelate compounds Nd(DBM)3·H2O and Er(DBM)3·H2O were determined by X-raydiffraction method. They are isomorphors, rhombohedral, Z = 1, R3 space group with cell dimensions a=22.61510, c=6.45300[Nd(DBM)3·H2O] and a=22.79901, c=6.39868[Er(DBM)3·H2O].Convergence factor are 0.0390, 0.0387 respectively. The structural properties of the serials compounds are also discussed in detail.
关键词
钕
铒
二苯甲酰甲烷
晶体结构
分子结构
螯合物
Neodymium
Erbium
dibenzolymethane
crystal sructure
molecule structure
