1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

Li Wu-Xiang; Li Hong-Xi; Li Hai-Yan; Chen Min-Min; Shi Yi-Xiang; Lang Jian-Ping

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1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

机译：1,4-双（2-（吡啶-4-基）乙烯基）萘及其锌（II）配位聚合物：合成，结构表征和汞（II）离子的选择性发光感测

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Solvothermal reactions of Zn(NO3)(2).6H(2)O with 1,4-bis(2-(pyridin-4-yl)vinyl)naphthalene (1,4-bpyvna) and 1,3,5-benzenetricarboxylic acid (1,3,5-H3BTC) (molar ratio = 1:1:1) at 120 degrees C in CH3CN/H2O (v/v = 1:2) afforded one three-dimensional (3D) coordination polymer [Zn-2(1,4-bpyvna)(1,3,5-HBTC)(2)(H2O)](n) (1). Similar reactions with the same three components at 140 degrees C in dimethylformamide (DMF)/CH3CN/H2O produced another 3D coordination polymer {[Zn-2(1,4-bpyvna)(1,3,5-BTC)(OH)].H2O}(n) (2) in 72% yield. When the molar ratio of Zn(NO3)(2).6H(2)O, 1,4-bpyvna, and 1,3,5-H3BTC was changed to 1:1:2, the analogous treatment at 140 degrees C yielded one one-dimensional coordination polymer {[Zn(1,3,5-HBTC)(2)-(H2O)] [1,4-bpyvna-H-2].CH3CN} (3, 1,4-bpyvna-H2 = 4,4'-((1,1)-naphthalene-1,4-diylbis (ethen e-2,1-diyl))bis (pyridin-1-ium)). Solvothermal reactions of Zn(NO3)(2).6H(2)O with equimolar 1,4-bpyvna and 1 or 2 equiv of 4,4'-oxidibenzoic acid (4,4'-H(2)OBA) at 120 degrees C in DMF/CH3CN/hexane resulted in the formation of {[Zn-2(1,4-bp-yvna)(4,4'-OBA)(2)]-0.5DMF-2.25H(2)O}(n) (4) and [[Zn-2(1,4-bpyvna)(4,4'-OBA)(2)].3DMF}(n) (5), respectively. Compounds 1-5 were characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction, single-crystal X-ray diffraction, and thermogravimetric analysis. Upon addition of Hg2+ ions to the DMF solution of 1,4-bpyvna, remarkable changes in the absorbance and emissive spectra were observed, associated with color changes, which were easily identified by the naked eye. This ligand could serve as a chemoprobe with the detection limit of Hg2+ being 0.060 ppm. When solid 2 was added in the DMF solution containing Hg(NO3)(2), the emission color of 2 was also changed from blue to yellow, and its detection limit of Hg2+ was as low as 0.057 ppm. This compound can be reused for several cycles without evident efficiency decay. Compound 2 would be a promising sensitive naked -eye indicator for low-concentration Hg2+ with high sensitivity and selectivity.

机译：用1,4-双（2-（吡啶-4-基）乙烯基）萘（1,4-BPYVNA）和1,3,5-苯甲酸甲酯的溶液（NO 3）（2）.6H（2）O的溶剂热反应酸（1,3,5-H3BTC）（摩尔比= 1：1：1）在120℃的CH 3 CN / H 2 O（v / v = 1：2），得到一个三维（3D）配位聚合物[Zn- 2（1,4-BPYVNA）（1,3,5-HBTC）（2）（2）（H 2 O）]（N）（1）。在140℃下在二甲基甲酰胺（DMF）/ CH 3 CN / H 2 O中的相同三分组分的类似反应产生了另一种3D配位聚合物（[Zn-2（1,4-BpyVNA）（1,3,5-BTC）（OH）] .h2O}（n）（2）率为72％。当Zn（NO 3）（2）o.6h（2）o，1,4-bpyvna和1,3,5-H3btc的摩尔比变为1：1：2时，产生140℃的类似处理一维配位聚合物{[Zn（1,3,5-HBTC）（2） - （H2O）] [1,4-BPYVNA-H-2] .CH3CN}（3,1,4-BPYVNA-H2 = 4,4' - （（1,1） - 萘-1,4-亚比比斯（EtheN E-2,1-二基））双（Pyridin-1-Ium））。 Zn（NO 3）（2）.6H（2）o的溶剂热反应具有等摩尔1,4-BPYVNA和1或2当量的4,4'-氧硝酸（4,4'-H（2）OBA），120 DMF / CH 3 CN /己烷中的℃是{[Zn-2（1,4-BP-YVNA）（4,4'-OBA）（2）] - 0.5dmf-2.25h（2）O}的形成。（n）（4）和[[Zn-2（1,4-bpyvna）（4,4'-OBA）（2）]。3DMF}（n）（5）。化合物1-5的特征在于元素分析，IR光谱，粉末X射线衍射，单晶X射线衍射和热重分析。在对1,4-BPYVNA的DMF溶液中加入HG2 +离子后，观察到吸光度和发光光谱的显着变化，与颜色变化相关，肉眼容易识别。该配体可以用作化学钳，具有HG2 +的检测限为0.060ppm。当在含有Hg（NO 3）（2）的DMF溶液中加入固体2时，2的发光颜色也从蓝色变为黄色，HG2 +的检测极限低至0.057ppm。该化合物可以重复使用几个循环而无明显效率衰减。化合物2将是一个有望的敏感的裸眼，用于低浓度HG2 +，具有高灵敏度和选择性。

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来源
《Crystal growth & design》 |2017年第7期|共12页
作者
Li Wu-Xiang; Li Hong-Xi; Li Hai-Yan; Chen Min-Min; Shi Yi-Xiang; Lang Jian-Ping;
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Soochow Univ Coll Chem Chem Engn &

Mat Sci State &

Local Joint Engn Lab Novel Funct Polymer Suzhou 215123 Jiangsu Peoples R China;

Soochow Univ Coll Chem Chem Engn &

Mat Sci State &

Local Joint Engn Lab Novel Funct Polymer Suzhou 215123 Jiangsu Peoples R China;

Soochow Univ Coll Chem Chem Engn &

Mat Sci State &

Local Joint Engn Lab Novel Funct Polymer Suzhou 215123 Jiangsu Peoples R China;

Soochow Univ Coll Chem Chem Engn &

Mat Sci State &

Local Joint Engn Lab Novel Funct Polymer Suzhou 215123 Jiangsu Peoples R China;

Soochow Univ Coll Chem Chem Engn &

Mat Sci State &

Local Joint Engn Lab Novel Funct Polymer Suzhou 215123 Jiangsu Peoples R China;

Soochow Univ Coll Chem Chem Engn &

Mat Sci State &

Local Joint Engn Lab Novel Funct Polymer Suzhou 215123 Jiangsu Peoples R China;

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机译：1,4-双（2-（吡啶-4-基）乙烯基）萘及其锌（II）配位聚合物：汞（II）离子的合成，结构表征和选择性发光感测

1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

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