Faculty of Chemistry, Adami Mickiewicz University in Poznan, Uniwersytetu Poznańskiego 8, 61-614 Poznan, Poland.
Molecules. 2021 Aug 31;26(17):5290. doi: 10.3390/molecules26175290.
Binary complexes of α-hydroxy acids (L-Tartaric acid and L-Malic acid) with d-electron metal ions (copper, cobalt, nickel) were investigated. Potentiometric measurements have been performed in aqueous solution with computer analysis of the data for determination of the stability constants of complexes formed in the studied systems. The coordination mode of the complexes was defined using spectroscopic methods: electron paramagnetic resonance (EPR), ultraviolet-visible (UV-Vis), circular dichroism (CD), and infrared (IR). Results of the equilibrium studies have provided evidence for the formation of dimers with copper(II) ions and monomers with cobalt(II) and nickel(II) ions.
α-羟基酸(L-酒石酸和 L-苹果酸)与 d 电子金属离子(铜、钴、镍)的二元配合物进行了研究。在水溶液中进行了电位测定,通过计算机对数据进行分析,以确定在所研究的体系中形成的配合物的稳定常数。使用光谱方法:电子顺磁共振(EPR)、紫外-可见(UV-Vis)、圆二色性(CD)和红外(IR)来确定配合物的配位模式。平衡研究的结果证明了与铜(II)离子形成二聚体,与钴(II)和镍(II)离子形成单体。