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作 者:张宏佳 常健 贾浩然 孙银霞[1] ZHANG Hong-Jia;CHANG Jian;JIA Hao-Ran;SUN Yin-Xia(School of Chemical and Biological Engineering,Lanzhou Jiaotong Universit;Lanzhou 730070,China)
机构地区:[1]兰州交通大学化学与生物工程学院,兰州730070
出 处:《无机化学学报》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)~~
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.
关 键 词:SCHIFF碱配体 Cu(Ⅱ)和Ni(Ⅱ)配合物 超分子结构 荧光性质
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