4—酰代吡唑啉酮是一类优良的螯合剂,人们对它与金属离子的作用进行了广泛的研究,但对以吡唑啉酮为端基的双酰代衍生物的研究却不多。双酰代吡唑啉酮分子内有四个可配位的氧原子,是一种多齿螯合剂,在不同条件下可形成单核或多核配合物,对亲氧的稀士元素是优良的配体,在我们以前的工作中观察到稀土离子与对称 4-acyl pyrazolones are a class of excellent chelating agents, and extensive research has been conducted on their interaction with metal ions. However, the studies on pyrazolone-terminated bis-acyl derivatives have not been studied many. Diacylpyrazolone has four coordinative oxygen atoms in the molecule. It is a multidentate chelator that can form mononuclear or polynuclear complex under different conditions and is good for the oxygen-affinity rare-earth element Ligands, rare earth ions and symmetry were observed in our previous work