苯多酸作为配体,可以和稀土离子生成不同配比而结构特殊的化合物,同时这类化合物具有一系列有趣的性质。 本文选择1,2,4,5-苯四酸(H_4L),1,3,5-苯三酸(H_3L),1,2,4-苯三酸(H_3L_Ⅰ)和1,2,3苯三酸(H_3L_(Ⅲ))作为配体,合成了除P_m以外的十四个镧系元素和Y的络合物。对于稀土和均苯四酸的络合物,除得到了文献曾报导过的4:3组成外,还合成了一个新的系列,其组成为1:1的络合物,Ln·HL·nH_2O(Ln= Benzene acid as a ligand, rare earth ions and rare earth ions can generate different proportions of compounds with special structure, while these compounds have a series of interesting properties. In this paper, pyromellitic acid (H_4L), trimesic acid (H_3L), trimellitic acid (H_3L_Ⅰ) and 1,2,3-benzenetris Acid (H_3L_ (Ⅲ)) as a ligand, a complex of fourteen lanthanides other than P_m and Y was synthesized. In addition to the 4: 3 composition reported in the literature, a new series was synthesized for the complex of rare earth and pyromellitic acid, which consisted of a 1: 1 complex, LnHLnH2O (Ln =