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Luminescent 2D + 2D → 2D Interpenetrated Zn(II)-Coordination Polymer Based on Reduced Schiff Base Tricarboxylic Acid and Bis(imidazole) Ligand for Detection of Picric Acid and Fe3+ Ions
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2017-09-25 00:00:00 , DOI: 10.1021/acs.cgd.7b01024 Mürsel Arici 1
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2017-09-25 00:00:00 , DOI: 10.1021/acs.cgd.7b01024 Mürsel Arici 1
Affiliation
New bifunctional luminescent coordination polymer, formulated as {[Zn(μ-HCIP)(μ-pbix)]·2H2O}n (1) (H3CIP = 5-(4-carboxybenzylamino)isophthalic acid, pbix: 1,4-bis(imidazol-1ylmethyl)benzene), was synthesized under solvothermal conditions by using reduced Schiff base and neutral pbix ligands and characterized by IR spectroscopy, elemental analysis, single-crystal and powder X-ray diffraction, and thermal analysis. X-ray results indicated that the HCIP ligand acted as a bidentate bridging ligand and was partly deprotonated in 1. Complex 1 exhibited a 2D + 2D → 2D interpenetrated structure with sql topology. Complex 1 displayed high emission at the solid state. Luminescence titration experiments showed that complex 1 dispersed in dimethylformamide (DMF) detected the picric acid in the presence of other interfering nitroaromatic compounds with a detection limit of 56.46 ppb. In addition, complex 1 displayed highly sensitive and selective detection toward Fe3+ ion in the presence of other interfering metal ions. The detection limit of 1 for Fe3+ ion sensing in DMF suspension was 0.208 ppm. The result showed that complex 1 could be used as a fluorescent sensor for the detection of picric acid and Fe3+ ion.
中文翻译:
基于还原席夫碱三羧酸和双(咪唑)配体的发光2D + 2D→2D互穿的Zn(II)配位聚合物,用于检测苦味酸和Fe 3+离子
新型双功能发光配位聚合物,配制成{[Zn(μ-HCIP)(μ-pbix)]·2H 2 O} n(1)(H 3 CIP = 5-(4-羧基苄基氨基)间苯二甲酸,pbix:1,使用还原的席夫碱和中性pbix配体在溶剂热条件下合成了4-双(咪唑-1基甲基)苯,并通过红外光谱,元素分析,单晶和粉末X射线衍射以及热分析进行了表征。X射线结果表明HCIP配体充当了双齿桥联配体,并在1中部分去质子化。复合体1展示了具有sql拓扑的2D + 2D→2D互穿结构。综合大楼1在固态时显示出高发射。发光滴定实验表明,在存在其他干扰性硝基芳香族化合物的情况下,分散在二甲基甲酰胺(DMF)中的配合物1可检测到苦味酸,其检出限为56.46 ppb。另外,在存在其他干扰金属离子的情况下,配合物1对Fe 3+离子显示出高灵敏度和选择性的检测。DMF悬浮液中Fe 3+离子感测的检出限1为0.208 ppm。结果表明,配合物1可作为荧光传感器用于检测苦味酸和Fe 3+离子。
更新日期:2017-09-26
中文翻译:
基于还原席夫碱三羧酸和双(咪唑)配体的发光2D + 2D→2D互穿的Zn(II)配位聚合物,用于检测苦味酸和Fe 3+离子
新型双功能发光配位聚合物,配制成{[Zn(μ-HCIP)(μ-pbix)]·2H 2 O} n(1)(H 3 CIP = 5-(4-羧基苄基氨基)间苯二甲酸,pbix:1,使用还原的席夫碱和中性pbix配体在溶剂热条件下合成了4-双(咪唑-1基甲基)苯,并通过红外光谱,元素分析,单晶和粉末X射线衍射以及热分析进行了表征。X射线结果表明HCIP配体充当了双齿桥联配体,并在1中部分去质子化。复合体1展示了具有sql拓扑的2D + 2D→2D互穿结构。综合大楼1在固态时显示出高发射。发光滴定实验表明,在存在其他干扰性硝基芳香族化合物的情况下,分散在二甲基甲酰胺(DMF)中的配合物1可检测到苦味酸,其检出限为56.46 ppb。另外,在存在其他干扰金属离子的情况下,配合物1对Fe 3+离子显示出高灵敏度和选择性的检测。DMF悬浮液中Fe 3+离子感测的检出限1为0.208 ppm。结果表明,配合物1可作为荧光传感器用于检测苦味酸和Fe 3+离子。