【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。更多还原

【Abstract】 The solubility properties of RECl₃-Ala-H₂O 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）₃Cl₃·3H₂O（RE=La,Ce.Pr,Nd,Sm, Eu.Gd,Tb, Dy ）, RE（Ala）₂Cl₃·nH₂O（RE=La,Ce,Pr、Nd,Sm,n=3;RE=Ho,Yb,Y,n=4）and RE（Ala）Cl₃.6H₂O（RE=Eu,Gd,Tb,Dy,Ho,Yb,Y ）complexes have been prepared.The tripartite regularity has been firstlyfound for the formation of complexes of RECl₃ with alanine.更多还原