合成了吡啶－２，６－二甲酸镧钇异核配合物晶体。元素分析结果表明，化学式为ＬａＹ（ＨＤＰＡ）＿２·（ＤＰＡ）＿２．１２Ｈ＿２Ｏ，ＤＰＡ为吡啶－２，６－二甲酸根。用Ｘ射线衍射法测定了配合物的单晶结构，其结构式为［ＬａＹ（ＨＤＰＡ）＿２（ＤＰＡ）＿２（Ｈ＿２Ｏ）＿４」·８Ｈ＿２Ｏ，属单斜晶系，Ｐ２＿１／ａ空间群。晶胞参数：ａ＝１．２９７５（４）ｎｍ，ｂ＝１．１２６６（３）ｎｍ，ｃ＝１．４０７９（３）ｎｍ；β＝１０２；１５（２）°，Ｖ＝２．０１１９０（１）ｎｍ￣３，Ｚ＝４，Ｄｃ＝１．８３ｇ／ｃｍ￣３，稀土离子的配位数为９，其配位多面体为扭曲的三冠三角棱柱体。 Synthesis of pyridine-2,6-dicarboxylic acid lanthanum yttrium heteronuclear crystal. Elemental analysis showed that the chemical formula was LaY (HDPA) 2 · (DPA) 2.12H 2 O and DPA was pyridine-2,6-dicarboxylate. The single crystal structure of the complex was determined by X-ray diffraction. Its structure is [LaY (HDPA) 2 (DPA) 2 (H 2 O) 4] 8H 2 O and belongs to the monoclinic and P2_1 / a space group. Cell parameters: a = 1.2975 (4) nm, b = 1.1266 (3) nm, c = 1.4079 (3) nm; 1) nm ~ 3, Z = 4, Dc = 1.83g / cm ~ 3, the coordination number of rare earth ions is 9, the coordination polyhedron is a twisted triangular crown prism.