| 混合配体构筑的配位聚合物的合成、结构与荧光性质 | |
| Syntheses, Structures and Luminescence Properties of Coordination Polymers in Mixed-Ligand System | |
| 摘要: 在溶剂热条件下，利用Cd（Ⅱ）、Co（Ⅱ）在混配体体系下合成出3个结构新颖的配位聚合物[Cd3（pic）4（H2bmimb）]n（1），[Co3（pic）4（H2bmimb）]n（2）和[Cd2（1,2-mbix）（pic）2（H2O）2]n（3）（pic=5-苯基间苯二甲酸；H2bmimb=1，4-二（（2-甲基咪唑）亚甲基）苯；1，2-mbix=1，2-二（（2-甲基咪唑）亚甲基）苯），并通过单晶X射线衍射、红外光谱、热重分析、元素分析、粉末X射线衍射和荧光光谱等对配合物进行了表征。配合物1和2中金属离子Cd2+、Co2+均与pic配体形成了三维阴离子骨架，双质子化的双咪唑配体位于骨架中平衡骨架电荷。配合物3中，Cd2+金属中心与pic、1，2-mbix配体配位形成一维链，链与链之间通过苯环间的π…π堆积形成二维层，进而通过氢键形成三维超分子结构。配合物1和3表现出良好的荧光性质。 | |
| 关键词: 溶剂热合成 配位聚合物 混合配体 荧光性质 | |
| 基金项目: 国家自然科学基金（No.21601103，51372125，21571112）和山东省自然科学基金培养基金项目（No.ZR2016BP04）资助。 | |
| Abstract: Three novel coordination polymers, formulated as[Cd3(pic)4(H2bmimb)]n (1),[Co3(pic)4(H2bmimb)]n (2),[Cd2(1,2-mbix)(pic)2(H2O)2]n (3) (H2bmimb=1,4-bis((2-methyl-1H-imidazol-1-yl)methyl)benzene, 1,2-mbix=1,2-bis((2-methyl-1H-imidazol-1-yl)methyl)benzene, pic=5-phenylisophthalic acid), were synthesized by self-assembly of mixed ligands with Cd(Ⅱ) and Co(Ⅱ) under solvothermal conditions and characterized by means of single-crystal X-ray diffraction, X-ray powder diffraction, infrared spectra, thermogravimetric analysis and fluorescence spectra. Single-crystal X-ray diffraction analysis revealed that complexes 1 and 2 possess 3D anionic frameworks, in which the protonated bis-imidazole ligands balance the charge of the frameworks. In complex 3, the Cd2+ ions are linked by pic and 1,2-mbix ligands to generate a 1D chain structure. The adjacent chains are held together to form a 2D layer via π…π stacking and then a 3D supramolecular framework through hydrogen-bonding interactions. In addition, luminescence properties of complexes 1 and 3 in the solid state were characterized. | |
| Keywords: solvothermal synthesis coordination polymers mixed-ligand luminescence propreties | |
| 投稿时间：2016-11-03 修订日期：2017-04-08 | |
| 摘要点击次数: 1959 | |
| 全文下载次数: 1464 | |
| 王新萍,李莹莹,刘勇,孙静,刘康,王磊.混合配体构筑的配位聚合物的合成、结构与荧光性质[J].无机化学学报,2017,33(5):823-829. | |
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