| 基于6-(3，5-二羧基苯基)烟酸金属有机配位聚合物的构筑及其荧光识别性能 |
| Synthesis and Fluorescent Sensing Properties of Two Metal-Organic Coordination Polymers Based on 6-(3,5-Dicarboxylphenyl)nicotinic Acid |
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| 摘要: 利用混合配体设计、合成了2种新颖的金属有机配位聚合物：[Cd（HDCPN）（1，4-bib）0.5（H2O）2]n（1）和{[Zn（HDCPN）（1，2bimb）]·H2O}n（2）（H3DCPN=6-（3，5-二羧基苯基）烟酸，1，4-bib=1，4-二（1-咪唑基）苯，1，2-bimb=1，2-二（咪唑-1-基甲基）苯），并通过单晶X射线衍射、红外光谱（IR）、热重分析（TG）和粉末衍射对配合物1和2进行结构表征。结构分析表明1和2都显示一维链结构，并通过π…π作用堆积成三维网络空间结构。进一步研究了配合物1和2的荧光性能及1在水溶液中对阳离子和阴离子的识别。荧光检测显示，配合物1在水溶液中高灵敏识别Fe3+、Cr2O72-和CrO42-离子。同时研究了配合物1对Fe3+、Cr2O72-和CrO42-的荧光猝灭机理。 |
| 关键词: 6-(3，5-二羧基苯基)烟酸 金属有机配位聚合物 荧光性能 |
| 基金项目: 山西省青年科技研究基金面上项目（No.201901D211443）、山西省高等学校科技创新项目（No.2020L0590）、山西省“1331工程”重点创新研究团队（No.PY201817）和晋中学院”1331工程”创新团队（No.jzxycxtd2019005）资助。 |
| Abstract: Two new metal-organic coordination polymers (MOCPs), namely, [Cd(HDCPN)(1,4-bib)0.5(H2O)2]n (1) and {[Zn(HDCPN)(1,2-bimb)]·H2O}n (2) have been synthesized based on H3DCPN and Cd(Ⅱ)/Zn(Ⅱ) under solvothermal condition (H3DCPN=6-(3,5-dicarboxylphenyl)nicotinic acid, 1,4-bib=1,4-bis(1-imidazoly)benzene, 1,2-bimb=1,2-bis (imidazol-1-ylmethyl)benzene) and characterized by X-ray single-crystal diffraction analysis, IR spectrum analysis, thermogravimetric analysis and powder X-ray diffraction analysis. The results show that complexes 1 and 2 are 1D chain structures, which are further extended into a 3D structure by π…π interactions between HDCPN ligand and imidazole ligands. In addition, solid fluorescence of 1 and 2 were detected. The fluorescence experiments demonstrate that 1 has highly selective recognition for Fe3+, CrO42- and Cr2O72- in aqueous solution. Meanwhile, the sensing mechanisms of 1 for Fe3+, CrO42- and Cr2O72- ions were also studied. |
| Keywords: 6-(3,5-dicarboxylphenyl) nicotinic acid metal-organic coordination polymer luminescent property |
| 投稿时间：2020-05-13 修订日期：2020-09-11 |
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| 高玲玲,李梦雪,杜意恩,陈勇强.基于6-(3，5-二羧基苯基)烟酸金属有机配位聚合物的构筑及其荧光识别性能[J].无机化学学报,2020,36(12):2359-2366. |
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| Support information: 相关附件： file200222_200222-Supporting_Information.doc |
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