Reaction-Based Sensing of Fluoride Ions Using Built-in Triggers for Intramolecular Charge Transfer and Photoinduced Electron Transfer
Reaction-Based Sensing of Fluoride Ions Using Built-in Triggers for Intramolecular Charge Transfer and Photoinduced Electron Transfer
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DOI：
10.1021/ol100172w
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发表时间：
2010-04-02
期刊：
影响因子：
5.2
通讯作者：
Akkaya, Engin U.
中科院分区：
文献类型：
--
作者：
Bozdemir, O. Altan;Sozmen, Fazli;Akkaya, Engin U.
两个Bodipy衍生物与甲硅烷基保护的酚功能信号氟化物浓度在溶液中和聚（甲基丙烯酸甲酯）矩阵。“新生”酚基的确切位置很重要。如果它位于内消旋位置，则会触发光诱导电子转移;然而，如果它通过苯乙烯基部分与Bodipy核心完全共轭，则会触发强烈的分子内电荷转移，导致吸收峰发生大的红移。在任何一种情况下，氟化物传感的选择性方法是不变的结果。
Two Bodipy derivatives with silyl-protected phenolic functionalities signal fluoride concentrations both in solution and in a poly(methyl methacrylate) matrix. The exact location of the "nascent" phenolate group Is Important. If it is at the meso position, photoinduced electron transfer is triggered; however, if it is in full conjugation via a styryl moiety to the Bodipy core, strong Intramolecular charge transfer is triggered, resulting in a large red shift in the absorbance peak. In either case, a selective methodology for fluoride sensing is the invariable result.