Colorimetric Probes Based on Anthraimidazolediones for Selective Sensing of Fluoride and Cyanide Ion via Intramolecular Charge Transfer
Colorimetric Probes Based on Anthraimidazolediones for Selective Sensing of Fluoride and Cyanide Ion via Intramolecular Charge Transfer
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DOI：
10.1021/jo201290a
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发表时间：
2011-10-21
影响因子：
3.6
通讯作者：
Bhattacharya, Santanu
中科院分区：
文献类型：
--
作者：
Kumari, Namita;Jha, Satadru;Bhattacharya, Santanu
设计并合成了蒽并[1，2-d]咪唑-6，11-二酮类离子选择性传感探针。每个探针作为强的比色传感器的氟离子和氰离子，并表现出分子内电荷转移（ICT）带，这表明显着的红移后，添加的F-或CN-离子。其中一个探针（2）显示出对氰化物和氟离子的选择性比色传感。在有机介质中，2对氟化物和氰化物表现出选择性的颜色变化，而在水性有机介质中，它对氰离子表现出选择性的比率响应。
Probes based on anthra[1,2-d]imidazole-6,11-dione were designed and synthesized for selective ion sensing. Each probe acted as strong colorimetric sensors for fluoride and cyanide ions and exhibited intramolecular charge transfer (ICT) band, which showed significant red-shifts after addition of either the F- or CN- ion. One of the probes (2) showed selective colorimetric sensing for both cyanide and fluoride ions. In organic medium, 2 showed selective color change with fluoride and cyanide, whereas in aqueous organic medium it showed a ratiometric response selectively for cyanide ion.