摘要
在水溶液体系中合成了镧、镨、钐和钆四种稀土硝酸盐与甘氨酸的固态配合物,化学分析表明,它们的化学组成分别是L_0(NO_3)_3·(Gly)_3·H_2O,Pr(NO_3)_3·(Gly)_3·H_2O,Sm(NO_3)_3·(Gly)_3·3H_2O和Gd(NO_3)_3·(Gly)_3·3H_2O,用红外光谱法和x射线衍射法测定了配合物的结构特征,表明它们是一类完全不同于稀土硝酸盐和甘氨酸的新化合物,同时考察了配合物在几种常见溶剂中的溶解性。
The solid complexes of RE (NO_3)_3 · 6H_2O (RE=La, Pr, Sm, Gd) with Glycine were prepared in aqueous media. The Complexes had the composition of RE (NO_3)_3 · (Gly)·H_2O (RE=La, Pr) and RE (NO_3)_3·(Gly)_3·3H_2O (RE=Sm, Gd) . By I.R. spectra and X—ray diffaction their structure characterization was investigated and showed that they were a new type of chemical compounds different from Amino Acid complexes with Rare Earth Nitrates.
关键词
稀土氨基酸配合物
稀土硝酸盐
甘氨酸
amino acid complexes with rare earth, rare earth nitrates, amino acid
