| 非对称Salamo型N2O3配体构筑的四核铜(Ⅱ)和锌(Ⅱ)配合物:合成、结构及荧光性质 |
| Tetranuclear Copper(Ⅱ) and Zinc(Ⅱ) Complexes Constructed from an Asymmetrical Salamo-Type N2O3 Donor Ligand: Syntheses, Structures and Fluorescence Properties |
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| 摘要: 合成了2个新设计的Salamo型N2O3配体（H3L）构筑的四核配合物，{Cu（L）（OAc）Cu（H2O）}2（1）和{Zn（L）（OAc）Zn（H2O）}2（2），并通过元素分析、红外光谱、紫外-可见吸收光谱、荧光光谱及X射线单晶衍射等方法对其进行了表征。配合物1由2个完全去质子化的L3-配体单元、2个桥联的乙酸根离子和2个配位的水分子组成，形成了一种对称的四核结构。铜（Ⅱ）离子均为五配位且分别具有稍微扭曲的三角双锥和四方锥几何构型。该配合物通过C-H…π相互作用自组装而形成了一种一维链状超分子结构。而配合物2却为非对称的四核结构，由2个完全去质子化的L3-配体单元、2个配位的水分子以及2个桥联的乙酸根离子组成。该配合物形成了一种三维超分子结构。同时，还研究了配体H3L及配合物1和2的荧光性质。 |
| 关键词: Salamo型N2O3配体 配合物 合成 晶体结构 荧光性质 |
| 基金项目: 国家自然科学基金（No.21361015，21761018）资助项目。 |
| Abstract: Two newly designed tetranuclear complexes, {Cu(L)(OAc)Cu(H2O)}2 (1) and {Zn(L)(OAc)Zn(H2O)}2 (2) derived from an Salamo-type N2O3 donor ligand (H3L) were synthesized and characterized by elemental analyses, IR and UV-Vis spectra, fluorescence spectra and X-ray crystallography. Complex 1 is made up of four Cu(Ⅱ) ions, two deprotonated L3- moieties, two coordinated water molecules and two μ2-acetate ions. All of the Cu(Ⅱ) ions in 1 are penta-coordinated with slightly distorted tetragonal pyramidal and trigonal bipyramidal symmetries. Complex 1 forms an infinite 1D chain supramolecular structure via C-H…π interactions. Complex 2 reveals an asymmetrical tetranuclear structure, and consists of four Zn(Ⅱ) ions, two completely deprotonated L3- units, two μ2-acetate ions and two coordinated water molecules, which possesses an infinite 3D supramolecular structure. The fluorescent properties of H3L and complexes 1 and 2 have also been discussed. |
| Keywords: Salamo-type N2O3 donor ligand complex synthesis crystal structure fluorescence property |
| 投稿时间：2017-08-30 修订日期：2017-12-15 |
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| 董秀延,高垒,王飞,张阳,董文魁.非对称Salamo型N2O3配体构筑的四核铜(Ⅱ)和锌(Ⅱ)配合物:合成、结构及荧光性质[J].无机化学学报,2018,34(4):739-749. |
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