| 基于酰腙和菲咯啉配体的镉、铜配合物的水热合成、晶体结构和性质 | |
| Hydrothermal Syntheses, Crystal Structures and Properties of Cadmium(Ⅱ)/Copper(Ⅱ) Complexes with Acylhydrazone and Phenanthroline Ligands | |
| 摘要: 合成了一种酰腙类[ONO]三齿Schiff碱5-溴水杨醛缩噻吩-2-甲酰腙(H2Brsth),并以菲咯啉(Phen)为第二配体通过水热反应制备了两种金属配合物[Cd2(μ-Brsth)2(Phen)2] (1)和[Cu(Brsth)(Phen)] (2),经元素分析、红外光谱、紫外光谱、荧光光谱、热重分析和X射线单晶衍射分析对它们进行了表征.1的晶体属单斜晶系,C2/c空间群,晶胞参数a=2.116 36(13) nm,b=1.163 35(7) nm,c=1.872 43(12) nm,β=100.981(2)°,V=4.525 6(5) nm3,Z=4;2的晶体属三斜晶系,P1 空间群,晶胞参数a=0.911 7(2) nm,b=1.089 4(3) nm,c=1.272 9(3) nm,α=64.923(4)°,β=82.006(5)°,γ=67.768(5)°,V=1.059 6(5) nm3,Z=2.1是一种双核配合物,Cd(Ⅱ)的配位环境为畸变的八体构型;2是一种单核配合物,Cu(Ⅱ)则处于四方锥配位环境.配合物1在443 nm激发光作用下可发射很强的绿色荧光,最大发射波长525 nm,而配体的荧光发射峰则位于475 nm. | |
| 关键词: 配合物 席夫碱 晶体结构 水热合成 | |
| 基金项目: 泉州师范学院学科建设资金和福建省大学生创新创业训练计划项目(No.201510399025,201510399030)资助. | |
| Abstract: Newly designed [ONO] tridentate hydrazone Schiff base ligand H2Brsth, derived from the condensation of 5-bromosalicylaldehyde and thiophene-2-formyl hydrazine, hydrothermally reacted with metal acetates and phenanthroline as co-ligand yielding two complexes [Cd2(μ-Brsth)2(Phen)2] (1) and [Cu(Brsth)(Phen)] (2), which were characterized by elemental analyses, FT-IR, electronic spectra, fluorescence spectra, TGA and single crystal X-ray diffraction. The X-ray diffraction analyses reveal that complex 1 crystallizes in monoclinic space group C2/c with a=2.116 36(13) nm, b=1.163 35(7) nm, c=1.872 43(12) nm, β=100.981(2)°, V=4.525 6(5) nm3 and Z=4, while 2 crystallizes in the triclinic space group P1 with a=0.911 7(2) nm, b=1.089 4(3) nm, c=1.272 9(3) nm, α=64.923(4)°, β=82.006(5)°, γ=67.768(5)°, V=1.059 6(5) nm3 and Z=2. The complex 1 is a binuclear ternary complex, in which Cd atoms locate in distorted coordination octahedron. The complex 2 is a mononuclear ternary complex with Cu atom in distorted square pyramidal coordination. The complex 1 exhibits strong green fluorescence with emission maximum of 525 nm at the excitation wavelength of 443 nm, while the ligand shows emission at 475 nm. CCDC: 1062986, 1; 1046224, 2. | |
| Keywords: complexes Schiff base crystal structure hydrothermal synthesis | |
| 投稿时间：2015-09-23 修订日期：2015-11-30 | |
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| 陈延民,王景梅,陈飞鹏,陈雅心,曾倩茹,解庆范.基于酰腙和菲咯啉配体的镉、铜配合物的水热合成、晶体结构和性质[J].无机化学学报,2016,32(3):434-440. | |
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