A fluorescent probe for TNP detection in aqueous solution based on joint properties of intramolecular charge transfer and aggregation-induced enhanced emission
A fluorescent probe for TNP detection in aqueous solution based on joint properties of intramolecular charge transfer and aggregation-induced enhanced emission
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基于分子内电荷转移和聚集诱导增强发射联合特性的水溶液中 TNP 检测的荧光探针
DOI：
10.1016/j.snb.2016.02.112
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发表时间：
2016-07
影响因子：
8.4
通讯作者：
Zhang Ming
中科院分区：
文献类型：
--
作者：
Ma Hongwei;He Chuanyou;Li Xueliang;Ablikim Obolda;Zhang Shitong;Zhang Ming
设计并合成了由菲和1，8-萘酰亚胺单元组成的D-A荧光分子NPH-AN。1，8-邻苯二甲酰亚胺单元向菲单元的分子内电荷转移(ICT)发射表现为典型的分子内电荷转移(ICT)发射，在水溶液中这种发射明显增强，这归因于聚集诱导增强发射(AIEE)。以NPH-AN为荧光探针，测定了水溶液中的2，4，6-三硝基苯酚(TNP)。质子从TNP向NPH-AN的转移可以有效地阻止NPH-AN的ICT发射，并使荧光显著猝灭。计算的探测下限为4.7亿×10万亿−7M。
A donor–acceptor (D–A) fluorescent molecule, Nph-An composed of anthracene and 1,8-Naphthalimide units, was designed and synthesized. It presented typical intramolecular charge transfer (ICT) emission from 1,8-Nphthalimide units to anthracene units, and this emission was enhanced obviously in aqueous solution, which was attributed to aggregation-induced enhanced emission (AIEE). Further, Nph-An was used as a fluorescent probe to detect 2,4,6-trinitrophenol (TNP) in aqueous solution. The proton transfer from TNP to Nph-An could efficiently block the ICT emission of Nph-An, and cause the fluorescence remarkably to be quenched. The calculated limit detection is 4.7 × 10−7M.
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影响因子：
3.3
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通讯作者：
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