稀土抗坏血酸配合物的合成及表征

SYNTHESIS AND CHARACTERIZATION OF COMPLEXES OF RARE EARTH WITH ASCORBIC ACID

以稀土氧化物和抗坏血酸为原料，合成了６种稀土抗坏血酸配合物．其通式为：Ｌｎ（Ｃ６Ｈ８Ｏ６）３·ｎＨ２Ｏ，其中Ｌｎ＝Ｌａ，Ｃｅ，Ｐｒ，Ｎｄ，Ｓｍ和ＲＥ，ｎ＝４或５．并对它们的溶解性、热稳定性以及ＩＲ光谱等性质进行了研究．

In this paper, six solid complexes of rare earth(Ⅲ) with ascorbic acid have been synthesized.The analytical results show the composition of complexes is Ln(L ascorbate) 3· n H 2O, Ln=La,Ce,Pr,Nd,Sm and RE, n =4 or 5. Their solubility,thermal stability and IR spectra are studied as well.