以磺胺甲基异口恶唑与对羟基苯甲醛合成一种新西佛碱(H2L),并用此配体制备8个稀土配合物,通过元素分析、红外光谱、核磁共振、热分析、摩尔电导和溶解性试验对配合物进行了表征。配合物的组成为LnL(OH).nH2O(Ln为稀土三价离子,L为去质子形式的西佛碱配体,n=1~2)。两种抗氧化实验都表明稀土配合物具有较好的抗氧化性能,比配体本身的作用更佳。 A new neosulphate (H2L) was synthesized from sulfamethoxazole and p - hydroxybenzaldehyde. Eight rare earth complexes were prepared by this ligand. The chemical constituents were characterized by elemental analysis, IR, NMR, thermal analysis, And solubility test were used to characterize the complex. The complex has the composition of LnL (OH) .nH2O (Ln is a rare earth trivalent ion and L is a Schiff base ligand in deprotonated form, n = 1-2). Both antioxidant experiments have shown that rare earth complexes have better antioxidant properties than the ligand itself better.