邻香兰素对甲苯胺Schiff碱稀土配合物的制备和表征

Preparation and Characterization of Rare Earth Complexes of Schiff Base Derived from o-Vanillin and p-Toluidine

前文曾报道了香兰素（3-甲氧基-4-羟基苯甲醛）与对甲基苯胺的Schiff碱稀土配合物。本文讨论邻香兰素（2-羟基-3-甲氧基苯甲醛）与对甲基苯胺的Schiff碱稀土配合物[LnL2Cl·2H2O]Cl2（Ln:ce,Pr,Nd,Sm,Eu,Gd,Dy;L:Schiff碱）的制备和表征。 1 实验 1.1 配合物的制备 按文献方法,用等摩尔比的邻香兰素与对甲基苯胺在无水乙醇中先制成Schiff碱。

The rare earth complexes of Schiff base derived from o- vanillin (2-hydroxy-3-methoxy-benzaldehyde) and p-toluidine (LnL2Cl . 2H2O)Cl2(Ln: Ce, Pr, Nd, Sm, Eu, Gd, Dy, L. Schiff base) have been prepared and characterized. The complexes consist of a centre rare earth ion, two coordinated Schiff bases, one coordinated chlorine ion, two coordinated water and two non-coordinated chlorine ions. The infrared spectra, molar conductances, and thermal analysis of the complexes were measured. Their stabilities were also discussed.