Synthesis, characterization, crystal structure, hirshfeld surface analysis and chromotropic properties of halo- bridged copper(II) complexes
作者:Atie Shirvan、Hamid Golchoubian、Ehsan Rezaee
DOI:10.1016/j.poly.2023.116812
日期:2024.2
In this study, two novel chromotropic binuclear copper(II) complexes were introduced. The complexes were denoted as [LCu(μ-Cl)Cl]2, 1 and [LCu(μ-Br)Br]2, 2 with L representing the chelating ligand N,N-dimethyl-N'-(9-methylanthracenyl)ethylenediamine. To investigate the structures of these complexes, various analytical techniques were employed, including FT-IR, EPR, UV-Vis spectroscopy, TG-DTA, molar
在本研究中,引入了两种新型变色双核铜(II)配合物。配合物表示为[LCu(μ-Cl)Cl] 2 , 1和[LCu(μ-Br)Br] 2 , 2其中L代表螯合配体N,N-二甲基-N' -(9-甲基蒽基)乙二胺。为了研究这些配合物的结构,采用了各种分析技术,包括 FT-IR、EPR、UV-Vis 光谱、TG-DTA、摩尔电导率测量和元素分析。利用X射线晶体学测定了[LCu(μ-Br)Br] 2的几何性质,并通过Hirshfeld表面分析研究了分子间相互作用。表征数据提供了支持所提出的双核结构的有力证据,其中两个铜(II)中心通过两个卤素桥连接。值得注意的是,这些配合物表现出溶剂致变色和热致变色特性,在具有不同极性和/或温度的溶液中显示出多种颜色。实验结果表明,观察到的向色性可归因于溶剂分子被配合物中的配位卤素取代。