2-乙酰吡嗪苯甲酰腙钴、锌和铜配合物的晶体结构及荧光性质 |
Co(Ⅱ)/Zn(Ⅱ)/Cu(Ⅱ) Complexes Containing Hydrazone Ligand Bearing Pyrazine Unit: Syntheses, Crystal Structures and Fluorescence Properties |
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摘要: 合成了配合物[Co(L)2](1),[Zn(L)2](2)和[Cu2(L)2Cl2](3)(HL为2-乙酰吡嗪苯甲酰腙),并通过单晶衍射、元素分析及红外光谱表征了它们的结构。单晶衍射结果表明,配合物1和2同构,配体和金属的比例为2:1。每个配合物中,中心金属离子与来自2个阴离子配体L-的N2O电子供体配位,形成扭曲的八面体配位构型。在双核配合物3中,Cu(Ⅱ)离子与1个阴离子三齿酰腙配体、2个μ2桥联的氯离子配位,拥有扭曲的四方锥配位构型。此外还研究了配合物的荧光性质。 |
关键词: 酰腙 配合物 吡嗪 晶体结构 荧光 |
基金项目: 国家自然科学基金(No.21001040)、河南省科技厅基础与前沿项目(No.162300410011,162300410209)和河南省青年骨干教师项目(No.2014GGJS-045)资助。 |
Abstract: Three complexes, namely,[Co(L)2] (1),[Zn(L)2] (2) and[Cu2(L)2Cl2] (3) based on HL (HL=2-acetylpyrazine benzoylhydrazone) were synthesized and characterized by X-ray diffraction analyses. The results show that complexes 1 and 2 are isostructural, in which the molar ratio between the metal and the ligand is 1:2. The metal ion in each complex is surrounded by two enolizated ligands L- with N2O donor set, thus giving a distorted octahedral geometry. However, in the bi-nuclear complex 3, each Cu(Ⅱ) ion is coordinated with one monoanionic tridentate hydrazone ligand and two μ2-chloride anions, as[CuN2OCl2], indicating the coordination geometry is a distorted tetragonal pyramid. In addition, the luminescent properties of the complexes are discussed in detail. |
Keywords: acylhydrazone complex pyrazine crystal structure fluorescence |
投稿时间:2017-05-31 修订日期:2017-10-09 |
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侯旭锋,赵晓雷,张露,吴伟娜,王元.2-乙酰吡嗪苯甲酰腙钴、锌和铜配合物的晶体结构及荧光性质[J].无机化学学报,2018,34(1):201-205. |
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