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在反应体系中引入不同的银化合物,利用水热合成方法制备了2个镧-酒石酸配合物[La(TTA)(OA)0.5(H2O)]·2H2O(1)和[La2(TTA)3(H2O)4]·H2O(2)。利用元素分析及X-射线单晶结构测定对其进行了表征。结果表明配合物1的晶体属于单斜晶系,P21/c空间群;配合物2的晶体属于三斜晶系,P1空间群。在配合物1中,部分酒石酸被氧化分解成为草酸并作为桥联配体将配合物的层状双(6,3)拓扑结构连接形成三维多孔结构;化合物2和1具有相似的二维结构,其层状结构单元被不同配位模式的酒石酸配体连接成一个具有三维结构的超分子化合物。
Different lanthanum-tartaric acid complexes [La (TTA) (OA) 0.5 (H2O)] · 2H2O (1) and [La2 (TTA) 3 H2O) 4] H2O (2). It was characterized by elemental analysis and X-ray single crystal structure determination. The results show that the crystal of complex 1 belongs to monoclinic space group P21 / c and the crystal of complex 2 belongs to triclinic system, space group P1. In complex 1, part of tartaric acid was oxidatively decomposed into oxalic acid and the layered double (6,3) topological structure of the complex was connected to form a three-dimensional porous structure as a bridging ligand. Compounds 2 and 1 had a similar two-dimensional structure, Its lamellar structure units are coordinated by tartaric acid ligands of different coordination modes to form a three-dimensional supramolecular compound.