研磨固相法合成Schiff碱钍(IV)金属配合物

Synthesis of Schiff Bases Thorium(IV) Complexes by Grinding Solid Phase Synthesis Method

摘要:

以水杨醛、邻香草醛、2,6-二氨基吡啶和硝酸钍为原料，采用研磨固相法合成了2,6-二氨基吡啶双Schiff碱钍(IV)配合物[ThL1(NO3)2] (NO3)2，[ThL2(NO3)2] (NO3)2。通过元素分析、EDTA滴定法、红外光谱分析、紫外光谱分析、热分析等方法对配合物的组成和结构进行了表征。实验结果表明，金属钍与席夫碱配体中的亚氨基氮、酚羟基氧以及硝酸根离子形成了配位数为8的配合物。

Abstract:

Thorium(IV) complexes of bis-Schiff bases containing 2,6-pyridinediamine were synthesized by grinding solid phase synthesis method with salicylaldehyde, O-vanillin，2,6-pyridinediamine and thorium nitrate as base materials. The structures and composition were characterized by elemental analysis, method of EDTA titration, infrared spectrum, ultraviolet spectrum and TG-DTA analysis. The experimental results demonstrated that the thorium ion is coordinated through the Schiff base ligands as terdentate with O, N from phenolic, imino groups, and nitric acid root respectively. The coordination number of thorium ion is eight.