Two novel CN turn on fluorescent imaging materials with twin binding groups
Two novel CN turn on fluorescent imaging materials with twin binding groups
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两种新型 CN 开启具有双结合基团的荧光成像材料
DOI:
10.1016/j.snb.2016.08.051
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发表时间:
2017-02
期刊:
影响因子:
--
通讯作者:
Caixia Yin
中科院分区:
文献类型:
--
作者:
Fangjun Huo;Jianfang Li;Fangqin Chen;Caixia Yin
In this work two novel fluorescent imaging materials for CNsingle bond with twin binding groups (1and2) have been synthesized and fully characterized by standard analytical tools and spectroscopic techniques. The selectivity of1and2has been explored in aqueous solution, and the resulting turn-on fluorescence response toward CNsingle bond among different anions was studied. The cyanide ion adduct was characterized using NMR and mass spectroscopy and detection mechanism was further confirmed to be the nucleophilic attack of the indolium group of probe by CNsingle bond, which induces a turn-on fluorescence change. NMR and mass spectra indicate nucleophilic addition of CNsingle bond to indolium group is reversible in ionization process. For the practical application of the sensors,1could be used for fluorescence-microscopic imaging of CNsingle bond in biological applications.
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