A fluorescent zinc–pamoate coordination polymer for highly selective sensing of 2,4,6-trinitrophenol and Cu2+ ion
A fluorescent zinc–pamoate coordination polymer for highly selective sensing of 2,4,6-trinitrophenol and Cu2+ ion
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DOI：
10.1016/j.snb.2014.12.132
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发表时间：
2015-04
影响因子：
8.4
通讯作者：
Junwei Ye;Xiaoxiao Wang;R. F. Bogale;Limei Zhao;Hang Cheng;Wei-tao Gong;Jianzhang Zhao;G. Ning
中科院分区：
文献类型：
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作者：
Junwei Ye;Xiaoxiao Wang;R. F. Bogale;Limei Zhao;Hang Cheng;Wei-tao Gong;Jianzhang Zhao;G. Ning
在水热条件下合成了一种发光的二维双羟萘酸锌配位聚合物[Zn（PAM）（en）]（1）（PAM = 4，4 ′-亚甲基双（3-羟基-2-萘甲酸酯），en = 1，2-乙二胺）.加入微量的2，4，6-三硝基苯酚（TNP）后，即使在其它干扰物如4-硝基苯酚、2，6-二硝基甲苯、2，4-二硝基甲苯、硝基苯、1，3-二硝基苯、对苯二酚、二甲苯和溴苯存在的情况下，1的强发射也被有效地猝灭，通过荧光猝灭机制对TNP的检测表现出上级选择性。与其他金属离子如Zn ~（2+）、Mn ~（2+）、Mg ~（2+）、K ~+、Na ~+、Ni ~（2+）、Co ~（2+）和Ca ~（2+）相比，1对Cu ~（2+）也表现出独特的选择性和灵敏度。这表明化合物1可以作为TNP和Cu ~（2+）的双发光传感器。
A luminescent two-dimensional zinc–pamoate coordination polymer, [Zn(PAM)(en)] (1) (PAM = 4,4′-methylenebis(3-hydroxy-2-naphthalenecarboxylate), en = 1,2-ethanediamine) has been synthesized under hydrothermal conditions. The strong emission of1was quenched efficiently by adding trace amounts of 2,4,6-trinitrophenol (TNP), even in the presence of other interfering analytes such as 4-nitrophenol, 2,6-dinitrotoluene, 2,4-dinitrotoluene, nitrobenzene, 1,3-dinitrobenzene, hydroquinone, dimethylbenzene and bromobenzene, which exhibited superior selectivity of1for the detection of TNP via a fluorescence quenching mechanism. Similarly,1also exhibited unique selectivity and sensitivity toward Cu2+compared to other metal cations such as Zn2+, Mn2+, Mg2+, K+, Na+, Ni2+, Co2+and Ca2+. This reveals compound1can be used as a dual luminescence sensor for the detection of TNP and Cu2+alternatively.