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二元体系中 L-苹果酸与镧系元素（III）配合物的光谱研究。

Spectroscopic Studies of Lanthanide(III) Complexes with L-Malic Acid in Binary Systems.

机构信息

Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland.

出版信息

Int J Mol Sci. 2024 Aug 25;25(17):9210. doi: 10.3390/ijms25179210.

DOI:10.3390/ijms25179210
PMID:39273158
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11395662/
Abstract

Binary systems of lanthanide ions (La, Nd, Gd, Ho, Tb, and Lu) with L-malic acid in molar ratios of 1:1 and 1:2 were studied. This study was carried out in aqueous solutions, and the composition of the formed complexes was confirmed using computer data analysis. The overall stability constants of the complexes and the equilibrium constants of the reaction were determined. The effect of ligand concentration on the composition of the internal coordination sphere of the central atom was observed. Changes in the coordination sphere of lanthanide ions were confirmed by spectroscopic measurements.

摘要

研究了镧系离子（La、Nd、Gd、Ho、Tb 和 Lu）与 L-苹果酸在 1:1 和 1:2 摩尔比的二元体系。这项研究是在水溶液中进行的，通过计算机数据分析确认了形成配合物的组成。测定了配合物的总稳定常数和反应的平衡常数。观察了配体浓度对中心原子内部配位球组成的影响。通过光谱测量证实了镧系离子配位球的变化。

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