用~1H-NMR研究EDTA衍生物冠醚的配合作用

~1H-NMR Study on the Complex Properties of Crown Ether Derivatives of EDTA

作者用~1H-NMR研究N,N’-二羧甲基大环醚双内酯(1～4)和大环胺双内酰胺(5)与K^+、Cd^(2+)、Pb^(2+)的配合作用,确定了配合物的化学计量和配合机理,并以非线性最小二乘法程序,拟合出配合物的形成常数。

The complexations of N,N′-dicarboxymethyl macrocyclic ether-bislactones (1-4) and amine-bislactame(5)with K^+ Cd^(2+), b^(2+)were studied by ~1H-NMR. The stoichiometry of complexes andthe mechanism of coordinations were de-termined. The formation onstants of com-plexes were calculated by nonlinear least-squares program KINFIT.