The interaction of triethanolamine (TEA) with Cu(II) salts of salicylic, cinnamic and succinic acids was studied for the first time. The structure of the synthesized complexes was investigated by single-crystal X-ray diffraction. TEA complexes with Cu(II) salicylate ( 1 ) and cinnamate ( 2 ) are binuclear mixed ligand complexes, but interaction of TEA with Cu(II) succinate leads to the formation of cationic mononuclear complex—[Cu(TEA) 2 ](C 4 H 4 O 4 ) ( 3 ). Cu(II) complexes 1 – 3 were also characterized by physicochemical and spectroscopic methods. Their antimicrobial activity was investigated.

中文翻译：

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铜（II）与三乙醇胺和羧酸（琥珀酸、水杨酸、肉桂酸）络合物的合成、晶体结构和性质

首次研究了三乙醇胺 (TEA) 与水杨酸、肉桂酸和琥珀酸的 Cu(II) 盐的相互作用。通过单晶X射线衍射研究了合成配合物的结构。TEA 与水杨酸铜 (1) 和肉桂酸 (2) 的配合物是双核混合配体配合物，但 TEA 与琥珀酸铜 (II) 的相互作用导致形成阳离子单核配合物——[Cu(TEA) 2 ](C 4 H 4 O 4 ) ( 3 )。Cu(II) 配合物 1-3 还通过物理化学和光谱方法进行了表征。研究了它们的抗微生物活性。