铜(Ⅱ)和镍(Ⅱ)Salamo型配合物的合成、晶体结构、Hirshfeld表面分析、热稳定和荧光性质 |
Syntheses, Crystal Structures, Hirshfeld Surface Analyses, Thermal and Fluorescent Properties of Cu(Ⅱ) and Ni(Ⅱ) Salamo-Type Complexes |
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摘要: 基于香豆素类配体H2L合成了2个新的单核铜(Ⅱ)和三核镍(Ⅱ)配合物,[CuL](1)和[Ni3(L)2(μ-OAc)2(CH3OH)2]·CH3OH(2),并通过元素分析、红外光谱、紫外-可见吸收光谱,单晶X射线衍射,荧光光谱,热稳定性(TGA)和Hirshfeld表面分析对其进行了表征。X射线晶体学证明在配合物1中,位于[N2O2]空腔的铜(Ⅱ)离子是四配位的,形成了一个扭曲的平面四边形构型。同时,在配合物2中所有的镍(Ⅱ)离子都是六配位的、具有扭曲的八面体几何构型。甲醇分子作为配体参与配合物2的配位作用。在配合物1和2中,氢键和C-H…π相互作用形成了强的超分子结构。此外,对配合物1和2的热稳定性和Hirshfeld表面分析进行了仔细的分析,并对配合物1和2的荧光性质也进行了研究。 |
关键词: 香豆素类Salamo配体 制备 配合物 荧光性质 表面分析 |
基金项目: 国家自然科学基金(No.51563022,21761018)资助项目 |
Abstract: Two new mononuclear Cu(Ⅱ) and trinuclear Ni(Ⅱ) Salamo-type complexes, namely[CuL] (1) and[Ni3(L)2(μ-OAc)2(CH3OH)2]·CH3OH (2), derived from a new containing coumarin-skeleton ligand H2L were prepared and characterized by the means of elemental analyses, FT-IR, UV-Visible absorption spectra, single-crystal X-ray diffractions, fluorescence spectra, thermal (TG-DTA) properties and Hirshfeld surface analyses. The X-ray crystallography demonstrated that the Cu(Ⅱ) ion in the[N2O2] coordination sphere is four-coordinated forming a distorted square planar geometry in complex 1. Meanwhile, all Ni(Ⅱ) ions are six-coordinated and have the distorted octahedral coordination geometries in complex 2. The methanol molecule as a ligand participates in the coordination of complex 2. The strong supramolecular structures are formed via hydrogen bonding and C-H…π interactions in complexes 1 and 2. In addition, the thermal stabilities and Hirshfeld surface analyses of complexes 1 and 2 were analyzed in detail, and the fluorescent properties of complexes 1 and 2 were also investigated. |
Keywords: Samalo ligand containing coumarin-skeleton preparation complex fluorescence property Hirshfeld surface analysis |
投稿时间:2018-09-29 修订日期:2018-11-27 |
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苏琼,赵青,安晓欣,王彦斌,李肖妍,董文魁.铜(Ⅱ)和镍(Ⅱ)Salamo型配合物的合成、晶体结构、Hirshfeld表面分析、热稳定和荧光性质[J].无机化学学报,2019,35(3):524-536. |
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Support information: 相关附件: file180536_Supplementary_material.docx |
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