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含肟基的Schiff碱Cu(Ⅱ)和Ni(Ⅱ)配合物的合成、超分子结构和光谱性质(英文) 被引量:6

Syntheses,Supramolecular Structures and Spectroscopic Properties of Cu(Ⅱ)and Ni(Ⅱ) Complexes with Schiff Base Containing Oxime Group
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摘要 合成了2个含肟基Schiff碱的Cu(Ⅱ)和Ni(Ⅱ)配合物[Cu(L1)2]·(1,4-dioxane)(1)和[Ni(L2)2](2),并通过元素分析、红外光谱、紫外可见光谱,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均包含1个中心金属离子和2个双齿配体单元,且金属离子的配位数均为4,均具有轻微扭曲的平面四边形几何构型。不同的是配合物1通过分子间氢键以及π…π堆积作用相连接形成了三维超分子结构,而配合物2仅通过分子间的π…π堆积作用形成了一条一维超分子链。 Two Cu(Ⅱ) and Ni(Ⅱ) complexes,[Cu(L1)2]·(1,4-dioxane) (1) (HL1=8-(((4-(1-((benzyloxy) imino) ethyl) phenyl) imino) methyl)-7-hydroxy-4-methyl-2H-chromen-2-one) and[Ni(L2)2] (2) (HLL2=1-(4-(((2-hydroxynaphthalen-1-yl) methylene) amino) phenyl) ethanone O-benzyloxime), have been synthesized and characterized by elemental analyses, IR spectra, UV-Vis spectra, fluorescence spectra and X-ray single crystal diffraction method. X-ray crystallographic analysis shows that the Cu(Ⅱ) and Ni(Ⅱ) ions are all four-coordinated in a trans-N2O2 slightly distorted square-planar geometry by two hydroxy O and two imine N atoms from two N,O-bidentate Schiff base ligands. Moreover, complex 1 links some other molecules into an infinite 3D supramolecular structure by intermolecular hydrogen bonds and π…π stacking interactions, while complex 2 forms 1D infinite chain via intermolecular π…π stacking interactions. Furthermore, the fluorescence property of HL1, HLL2 and their metal complexes 1 and 2 are discussed.
作者 张宏佳 常健 贾浩然 孙银霞 ZHANG Hong-Jia;CHANG Jian;JIA Hao-Ran;SUN Yin-Xia(School of Chemical and Biological Engineering,Lanzhou Jiaotong Universit;Lanzhou 730070,China)
出处 《无机化学学报》 SCIE CAS CSCD 北大核心 2018年第12期2261-2270,共10页 Chinese Journal of Inorganic Chemistry
基金 supported by Gansu science and technology plan program (Grant No.18YF1GA054) the Program for Excellent Team of Scientific Research in Lanzhou Jiaotong University (Grant No.201706)~~
关键词 SCHIFF碱配体 Cu(Ⅱ)和Ni(Ⅱ)配合物 超分子结构 荧光性质 Schiff base ligand Cu (Ⅱ) and Ni (Ⅱ) complexes supramolecular structure fluorescence property
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