| 两个Schiff碱铜配合物的合成、晶体结构、光谱性质及取代基效应 | |
| Two Cu(Ⅱ) Complexes with Schiff Base Ligands: Syntheses, Crystal Structures, Spectroscopic Properties, and Substituent Effect | |
| 摘要: 合成了2个含肟基Schiff碱Cu(Ⅱ)配合物[Cu(L1)2](1)和[Cu(L2)2](2)(HL1=1-(3-((2-hydroxybenzylidene)amino) phenyl) ethanone O-benzyl oxime; HL2=1-(3-((2-Hydroxy-naphthalen-1-ylmethylene)-amino)-phenyl)-ethanone oxime),并通过元素分析、红外光谱、紫外光谱,荧光光谱及X射线单晶衍射分析进行了表征和分析。结果表明,配合物1和2具有相似的结构,均由1个中心Cu(Ⅱ)离子和2个双齿配体单元组成,且Cu(Ⅱ)离子的配位数为4,具有平面四边形结构。配合物1和2均形成了二维层状超分子结构,不同的是配合物1通过分子间π…π堆积作用相连接,而配合物2通过分子间O-H…N和C-H…π氢键作用而形成了超分子结构。进一步讨论了配合物1的荧光性质及两个配合物间配体的取代基效应。 | |
| 关键词: 铜(Ⅱ)配合物 晶体结构 Schiff碱配体 取代基效应 | |
| 基金项目: 兰州交通大学青年科学基金(No.2011007)、兰州 交通大学研究生教改项目(No.160012)和甘肃省科技支撑计划项目(No.1204GKCA052)资助。 | |
| Abstract: Two new Cu(Ⅱ) complexes [Cu(L1)2](1) (HL1=1-(3-((2-hydroxybenzylidene)amino) phenyl) ethanone O-benzyl oxime) and [Cu(L2)2] (2) (HL2=1-(3-((2-Hydroxy-naphthalen-1-ylmethylene)-amino)-phenyl)-ethanone oxime) have been synthesized and characterized by elemental analyses, IR spectra, UV-Vis spectra, fluorescence measurement and X-ray single crystal diffraction method. X-ray crystallographic analyses have indicated that complexes 1 and 2 have the similar structure, consisting of one Cu(Ⅱ) ion, two ligand units. In the complexes, the Cu(Ⅱ) ion lying on an inversion centre, is four-coordinated in a trans-CuN2O2 square-planar geometry by two hydroxy O and two imine N atoms from two symmetry-related N,O-bidentate Schiff base ligands. The supramolecular structures of the two complexes 1 and 2 are also similar two-dimensional supramolecular structure linking by different intermolecular interaction. Complex 1 forms an infinite two-dimensional supramolecular structure by two π…π interaction, while that of complex 2 by intermolecular O-H…N and C-H…π hydrogen bond interactions. The fluorescence property of complex 1 and substituent effects of the two complexes are discussed. CCDC: 1003363, 1; 1043506, 2. | |
| Keywords: Cu(Ⅱ) complex crystal structure Schiff base ligand substituent effect | |
| 投稿时间：2015-09-08 修订日期：2015-11-25 | |
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| 孙银霞,李春宇,杨成娟,赵亚元,郭建强,俞彬.两个Schiff碱铜配合物的合成、晶体结构、光谱性质及取代基效应[J].无机化学学报,2016,32(2):327-335. | |
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