摘要
用半微量相平衡法研究了ＲＥＣｌ３－Ａｌａ－Ｈ＿２Ｏ（ＲＥ＝Ｓｍ，Ｄｙ，Ｙｂ）在２５℃及全浓度范围内的溶度性质。结果表明每个体系中分别形成两种不同配比的配合物。在相平衡结果指导下，合成了ＲＥ（Ａｌａ）＿３Ｃｌ＿３·３Ｈ＿２Ｏ（ＲＥ＝Ｌａ，Ｃｅ，Ｐｒ，Ｎｄ，Ｓｍ，Ｅｕ，Ｇｄ，Ｔｂ，Ｄｙ，ＲＥ（Ａｌａ）＿２Ｃｌ＿３·ｎＨ＿２Ｏ（ＲＥ＝Ｌａ，Ｃｅ，Ｐｒ，Ｎｄ，Ｓｍ，ｎ＝３；ＲＥ＝Ｈｏ，Ｙｂ，Ｙ，ｎ＝４）和ＲＥ（Ａｂ）Ｃｌ＿３·６Ｈ＿２Ｏ（ＲＥ＝Ｅｕ，Ｇｄ，Ｔｂ，Ｄｙ，Ｈｏ，Ｙｂ，Ｙ）。发现了ＲＥＣｌ＿３与丙氨酸形成配合物的“三分组”规律。
The solubility properties of RECl_3-Ala-H_2O system(RE=Sm,Dy,Yb )at 25℃ in the wholeconcentration range have been investigatedby semimicro phase equilibrium method.The results indi-cated that there are two stoichiometries of complexes formed in every system,Under the guide ofphase equilibrium results、RE(Ala)_3Cl_3·3H_2O(RE=La,Ce.Pr,Nd,Sm, Eu.Gd,Tb, Dy ), RE(Ala)_2Cl_3·nH_2O(RE=La,Ce,Pr、Nd,Sm,n=3;RE=Ho,Yb,Y,n=4)and RE(Ala)Cl_3.6H_2O(RE=Eu,Gd,Tb,Dy,Ho,Yb,Y )complexes have been prepared.The tripartite regularity has been firstlyfound for the formation of complexes of RECl_3 with alanine.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
1995年第3期209-212,共4页
Journal of Northwest University（Natural Science Edition）
基金
国家自然科学基金
