Luminescent metal-organic frameworks with a 2-(4-pyridyl)-terephthalic acid ligand for detection of acetone

被引：24
作者：
An, Fengqin [1 ]
Zhang, Chengcheng [1 ]
Duan, Lijuan [1 ]
Liu, Xiangyu [1 ]
Wang, Zheng [1 ]
Jin, Xiaoyong [1 ]
Song, Weiming [1 ]
机构：
[1] Ningxia Univ, State Key Lab High Efficiency Coal Utilizat & Gre, Coll Chem & Chem Engn, Yinchuan 750021, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2019年 / 43卷 / 12期
基金：
中国国家自然科学基金;
关键词：
CD(II) COORDINATION POLYMERS; CO-II; SOLVOTHERMAL SYNTHESIS; CRYSTAL-STRUCTURES; FLUORESCENT; MOF; IONS; CADMIUM(II); CLUSTERS; ZINC(II);
D O I：
10.1039/c9nj00021f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Three metal-organic frameworks (MOFs), [Zn(pta)(H2O)](n) (1) {[Zn(pta)]H2O}(n) (2) and {[Cd(pta)]H2O)}(n) (3) [H(2)pta = 2-(4-pyridyl)-terephthalic acid], were isolated by hydrothermal synthesis. Single-crystal X-ray analysis reveals that compound 1 shows a 2D layer-like network, while compounds 2 and 3 feature different 3D frameworks with Schlafli symbols of {4<^>2.6.8<^>3} and {4<^>6.6<^>4} respectively, in which the deprotonated pta(2-) ligands are indicative of diverse coordination modes. The thermostability, water stability and luminescent properties of 1-3 were investigated in the solid state at room temperature. It is noteworthy that 3 shows high selectivity for the detection of acetone in different solvents via a fluorescence quenching mechanism. By virtue of its excellent detection efficiency, applicability in water and reusability, compound 3 can be a promising fluorescent material for practical acetone sensing.
引用
收藏
页码：4800 / 4807
页数：8
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