3-(2-吡啶基)-1,2,4-三唑配体Co(II)Cu(II)和Cd(II)配合物的合成、结构及荧光性质 |
Co(II), Cu(II)and Cd(II)Complexes Based on 3-(2-Pyridyl)-1,2,4-triazole:Syntheses, Structures, and Fluorescent Properties |
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摘要: 利用3-(2-吡啶基)-1,2,4-三唑配体(HL)和不同的金属盐设计合成了5个配合物[Co(HL)2(H2O)2](NO3)2(1)、[Cu2(L)2(NO3)2(H2O)4] (2)、[Cu2(L)2(AcO)2(H2O)2]·6H2O (3)、[Cu2(L)2(HL)2(ClO4)2]·2CH3CN (4)和[Cd2(L)2(HL)2(NO3)2]·2H2O (5),并通过X射线单晶衍射、红外、元素分析、X射线粉末衍射和热重对配合物结构进行了表征。测试结果表明配合物1具有单核结构,并且可以通过氢键的相互作用形成二维超分子结构。配合物2~5为双核结构。配合物2和5可以通过氢键的相互作用形成二维超分子结构。配合物3通过氢键的相互作用形成三维超分子结构。研究了配合物中HL配体的配位模式。此外,研究了配体HL和配合物1和5的固态荧光性质及荧光寿命。 |
关键词: 配合物 晶体结构 荧光性质 |
基金项目: 新疆维吾尔自治区自然科学基金(No.2015211C266)资助项目。 |
Abstract: Five complexes[Co(HL)2(H2O)2](NO3)2(1),[Cu2(L)2(NO3)2(H2O)4] (2),[Cu2(L)2(AcO)2(H2O)2]·6H2O (3),[Cu2(L)2(HL)2(ClO4)2]·2CH3CN (4) and[Cd2(L)2(HL)2(NO3)2]·2H2O (5) utilizing 3-(2-pyridyl)-1,2,4-triazole ligand(HL) as well as different metal salts have been synthesized and structurally characterized by single crystal X-ray diffraction, infrared spectroscopy (IR), elemental analysis, powder X-ray diffraction (PXRD) and thermogravimetric analysis (TGA). The structural analyses reveal that complex 1 has a mononuclear structure and forms a 2D supramolecular structure via hydrogen bonding interactions. Complexes 2~5 have dinuclear structures. Complexes 2 and 5 are arranged into 2D supramolecular structurs by the corresponding hydrogen bonding interactions, and complex 3 is also arranged into a 3D supramolecular structure through hydrogen bonding interactions. The coordination modes of HL ligand in the complexes were studied. Moreover, the fluorescent properties and fluorescence lifetimes of ligand HL, complexes 1 and 5 were investigated in the solid at room temperature. |
Keywords: complex crystal structure luminescent property |
投稿时间:2017-04-22 修订日期:2017-06-01 |
摘要点击次数: 1915 |
全文下载次数: 1999 |
杜层层,范建中,李金萍,王多志.3-(2-吡啶基)-1,2,4-三唑配体Co(II)Cu(II)和Cd(II)配合物的合成、结构及荧光性质[J].无机化学学报,2017,33(9):1685-1696. |
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Support information: 相关附件: file170227_Supporting_Information.doc |
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